IPC Classification

Class code (prefix) Descriptions Number of results
F02M 1/00 Carburettors with means for facilitating engine's starting or its idling below operational temperatures
F02M 1/02 Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being chokes for enriching fuel-air mixture
F02M 1/04 Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being auxiliary carburetting apparatus able to be put into, and out of, operation, e.g. having automatically-operated disc valves
F02M 1/06 Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being auxiliary carburetting apparatus able to be put into, and out of, operation, e.g. having automatically-operated disc valves having axially-movable valves, e.g. piston-shaped
F02M 1/08 Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically
F02M 1/10 Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat
F02M 1/12 Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat with means for electrically heating thermostat
F02M 1/14 Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on pressure in combustion-air- or fuel-air-mixture intake
F02M 1/16 Carburettors with means for facilitating engine's starting or its idling below operational temperatures using different fuels for starting and normal operation
F02M 1/18 Enriching fuel-air mixture by depressing float to flood carburettor
F02M 3/00 Idling devices for carburettors
F02M 3/02 Preventing flow of idling fuel
F02M 3/04 Preventing flow of idling fuel under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
F02M 3/05 Pneumatic or mechanical control, e.g. with speed regulation
F02M 3/06 Increasing idling speed
F02M 3/07 Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatical means, according to engine speed
F02M 3/08 Other details of idling devices
F02M 3/09 Valves responsive to engine conditions, e.g. manifold vacuum
F02M 3/10 Fuel metering pins; Nozzles
F02M 3/12 Passage way systems
F02M 3/14 Location of idling system outlet relative to throttle valve
F02M 3/045 Control of valves situated in the idling nozzle system, or the passage system, by electrical means or by a combination of electrical means with fluidic or mechanical means
F02M 3/055 Fuel flow cut-off by introducing air, e.g. brake air, into the idling fuel system
F02M 5/00 Float-controlled apparatus for maintaining a constant fuel level in carburettors
F02M 5/02 Float-controlled apparatus for maintaining a constant fuel level in carburettors with provisions to meet variations in carburettor position, e.g. upside-down position in aircraft
F02M 5/04 Float-controlled apparatus for maintaining a constant fuel level in carburettors with provisions to meet variations in carburettor position, e.g. upside-down position in aircraft with pivotally or rotatably mounted float chambers
F02M 5/06 Float-controlled apparatus for maintaining a constant fuel level in carburettors having adjustable float mechanism, e.g. to meet dissimilarities in specific gravity of different fuels
F02M 5/08 Float-controlled apparatus for maintaining a constant fuel level in carburettors having means for venting float chambers
F02M 5/10 Float-controlled apparatus for maintaining a constant fuel level in carburettors having means for preventing vapour lock, e.g. insulated float chambers or forced fuel circulation through float chamber with engine stopped
F02M 5/12 Other details, e.g. floats, valves, setting devices or tools
F02M 5/16 Floats
F02M 7/00 Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
F02M 7/02 Carburettors having aerated fuel spray nozzles
F02M 7/04 Means for enriching charge at high combustion-air flow
F02M 7/06 Means for enriching charge on sudden throttle opening, i.e. at acceleration, e.g. storage means in passage way system
F02M 7/08 Means for enriching charge on sudden throttle opening, i.e. at acceleration, e.g. storage means in passage way system using pumps
F02M 7/10 Other installations, without moving parts, for influencing fuel/air ratio, e.g. electrical means
F02M 7/11 Altering float-chamber pressure
F02M 7/12 Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
F02M 7/14 Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle
F02M 7/16 Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis
F02M 7/17 Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis by a pneumatically adjustable piston-like element, e.g. constant depression carburettors
F02M 7/18 Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel-metering orifice
F02M 7/20 Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel-metering orifice operated automatically, e.g. dependent on altitude
F02M 7/22 Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves fuel flow cross-sectional area being controlled dependent on air-throttle-valve position
F02M 7/23 Fuel aerating devices
F02M 7/24 Controlling flow of aerating air
F02M 7/26 Controlling flow of aerating air dependent on position of optionally operable throttle means
F02M 7/28 Controlling flow of aerating air dependent on temperature or pressure
F02M 7/087 Means for enriching charge on sudden throttle opening, i.e. at acceleration, e.g. storage means in passage way system using pumps changing output according to temperature in engine
F02M 7/093 Means for enriching charge on sudden throttle opening, i.e. at acceleration, e.g. storage means in passage way system using pumps changing output according to intake vacuum
F02M 7/127 Altering the float-chamber pressure
F02M 7/133 Auxiliary jets, i.e. operating only under certain conditions, e.g. full power
F02M 9/00 Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position
F02M 9/02 Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having throttling valves, e.g. of piston shape, slidably arranged transversely to the passage
F02M 9/04 Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having throttling valves, e.g. of piston shape, slidably arranged transversely to the passage with throttling valves sliding in a plane inclined to the passage
F02M 9/06 Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having throttling valves, e.g. of piston shape, slidably arranged transversely to the passage with means for varying cross-sectional area of fuel spray nozzle dependent on throttle position
F02M 9/08 Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having throttling valves rotatably mounted in the passage
F02M 9/10 Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having valves, or like controls, of elastic-wall type for controlling the passage, or for varying cross-sectional area, of fuel-air mixing chambers
F02M 9/12 Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having other specific means for controlling the passage, or for varying cross-sectional area, of fuel-air mixing chambers
F02M 9/14 Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having venturi and nozzle relatively displaceable essentially along the venturi axis
F02M 9/127 Axially movable throttle valves concentric with the axis of the mixture passage
F02M 9/133 Axially movable throttle valves concentric with the axis of the mixture passage the throttle valves having mushroom-shaped bodies
F02M 11/00 Multi-stage carburettors; Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve
F02M 11/02 Multi-stage carburettors; Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve with throttling valve, e.g. of flap or butterfly type, in a later stage opening automatically
F02M 11/04 Multi-stage carburettors; Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve with throttling valve, e.g. of flap or butterfly type, in a later stage opening automatically the later-stage valves having damping means
F02M 11/06 Other carburettors with throttling valve of flap or butterfly type
F02M 11/08 Register carburettors with throttling valve movable transversally to air passage
F02M 11/10 Register carburettors with rotatable throttling valves
F02M 13/00 Arrangements of two or more separate carburettors; Carburettors using more than one fuel
F02M 13/02 Separate carburettors
F02M 13/04 Separate carburettors structurally united
F02M 13/06 Arrangements of two or more separate carburettors; Carburettors using more than one fuel the carburettors using different fuels
F02M 13/08 Carburettors adapted to use liquid and gaseous fuels, e.g. alternatively
F02M 15/00 Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel or fuel-air mixture
F02M 15/02 Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel or fuel-air mixture with heating means, e.g. to combat ice-formation
F02M 15/04 Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel or fuel-air mixture with heating means, e.g. to combat ice-formation the means being electrical
F02M 15/06 Heat shieldings, e.g. from engine radiations
F02M 17/00 Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of main groups
F02M 17/02 Floatless carburettors
F02M 17/04 Floatless carburettors having fuel inlet valve controlled by diaphragm
F02M 17/06 Floatless carburettors having overflow chamber determining constant fuel level
F02M 17/08 Carburettors having one or more fuel passages opening in a valve-seat surrounding combustion-air passage, the valve being opened by passing air
F02M 17/09 Carburettors having one or more fuel passages opening in a valve-seat surrounding combustion-air passage, the valve being opened by passing air the valve being of an eccentrically mounted butterfly type
F02M 17/10 Carburettors having one or more fuel passages opening in valve-member of air throttle
F02M 17/12 Carburettors having one or more fuel passages opening in valve-member of air throttle the valve-member being of butterfly type
F02M 17/14 Carburettors with fuel-supply parts opened and closed in synchronism with engine stroke
F02M 17/16 Carburettors having continuously-rotating bodies, e.g. surface carburettors
F02M 17/18 Other surface carburettors
F02M 17/20 Other surface carburettors with fuel bath
F02M 17/22 Other surface carburettors with fuel bath with air bubbling through bath
F02M 17/24 Other surface carburettors with wicks
F02M 17/26 Other surface carburettors with other wetted bodies
F02M 17/28 Other surface carburettors with other wetted bodies fuel being drawn through a porous body
F02M 17/30 Carburettors with fire-protecting devices, e.g. combined with fire-extinguishing apparatus
F02M 17/32 Carburettors with fire-protecting devices, e.g. combined with fire-extinguishing apparatus automatically closing fuel conduits on outbreak of fire
F02M 17/34 Other carburettors combined or associated with other apparatus, e.g. air filters
F02M 17/36 Carburettors having fitments facilitating their cleaning
F02M 17/38 Controlling of carburettors, not otherwise provided for
F02M 17/40 Selection of particular materials for carburettors, e.g. sheet metal, plastic, or translucent materials
F02M 17/42 Float-controlled carburettors not otherwise provided for
F02M 17/44 Carburettors characterised by draught direction and not otherwise provided for
F02M 17/46 Carburettors characterised by draught direction and not otherwise provided for with down-draught
F02M 17/48 Carburettors characterised by draught direction and not otherwise provided for with up-draught
F02M 17/50 Carburettors having means for combating ice-formation
F02M 17/52 Use of cold, produced by carburettors, for other purposes
F02M 19/00 SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups
F02M 19/01 Apparatus for testing, tuning, or synchronising carburettors, e.g. carburettor flow stands
F02M 19/02 Metering-orifices, e.g. variable in diameter
F02M 19/03 Fuel atomising nozzles; Arrangement of emulsifying air conduits
F02M 19/04 Fuel-metering pins or needles
F02M 19/06 Other details of fuel conduits
F02M 19/08 Venturis
F02M 19/10 Venturis in multiple arrangement
F02M 19/12 External control gear, e.g. having dash-pots
F02M 19/025 Metering orifices not variable in diameter
F02M 19/035 Mushroom-shaped atomising nozzles
F02M 21/00 Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
F02M 21/02 Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02M 21/04 Gas-air mixing apparatus
F02M 21/06 Apparatus for de-liquefying, e.g. by heating
F02M 21/08 Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for non-gaseous fuels
F02M 21/10 Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for non-gaseous fuels for fuels with low melting point, e.g. apparatus having heating means
F02M 21/12 Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for fuels in pulverised state
F02M 23/00 Apparatus for adding secondary air to fuel-air mixture
F02M 23/02 Apparatus for adding secondary air to fuel-air mixture with personal control
F02M 23/03 Apparatus for adding secondary air to fuel-air mixture with personal control the secondary air-valve controlled by main combustion-air throttle
F02M 23/04 Apparatus for adding secondary air to fuel-air mixture with automatic control
F02M 23/06 Apparatus for adding secondary air to fuel-air mixture with automatic control dependent on engine speed
F02M 23/08 Apparatus for adding secondary air to fuel-air mixture with automatic control dependent on pressure in main combustion-air induction system
F02M 23/09 Apparatus for adding secondary air to fuel-air mixture with automatic control dependent on pressure in main combustion-air induction system using valves directly opened by low pressure
F02M 23/10 Apparatus for adding secondary air to fuel-air mixture with automatic control dependent on temperature, e.g. engine temperature
F02M 23/12 Apparatus for adding secondary air to fuel-air mixture characterised by being combined with device for, or by secondary air effecting, re-atomising of condensed fuel
F02M 23/14 Apparatus for adding secondary air to fuel-air mixture characterised by adding hot air
F02M 25/00 Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
F02M 25/03 Adding water into the cylinders
F02M 25/06 Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
F02M 25/07 adding exhaust gases
F02M 25/08 Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
F02M 25/10 Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
F02M 25/12 Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone the apparatus having means for generating such gases
F02M 25/14 Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding anti-knock agents, not provided for in groups
F02M 25/022 Adding fuel and water emulsion, water or steam
F02M 25/025 Adding water
F02M 25/028 Adding water into the charge intakes
F02M 25/032 Producing and adding steam
F02M 25/035 Producing and adding steam into the charge intakes
F02M 25/038 Producing and adding steam into the cylinders
F02M 26/00 Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
F02M 26/01 Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
F02M 26/02 EGR systems specially adapted for supercharged engines
F02M 26/03 EGR systems specially adapted for supercharged engines with a single mechanically or electrically driven intake charge compressor
F02M 26/04 EGR systems specially adapted for supercharged engines with a single turbocharger
F02M 26/05 High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
F02M 26/06 Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
F02M 26/07 Mixed pressure loops, i.e. wherein recirculated exhaust gas is either taken out upstream of the turbine and reintroduced upstream of the compressor, or is taken out downstream of the turbine and reintroduced downstream of the compressor
F02M 26/08 EGR systems specially adapted for supercharged engines for engines having two or more intake charge compressors or exhaust gas turbines, e.g. a turbocharger combined with an additional compressor
F02M 26/09 Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
F02M 26/10 Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
F02M 26/11 Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
F02M 26/12 Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
F02M 26/13 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
F02M 26/14 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
F02M 26/15 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
F02M 26/16 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system with EGR valves located at or near the connection to the exhaust system
F02M 26/17 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
F02M 26/18 Thermal insulation or heat protection
F02M 26/19 Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
F02M 26/20 Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
F02M 26/21 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
F02M 26/22 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
F02M 26/23 Layout, e.g. schematics
F02M 26/24 Layout, e.g. schematics with two or more coolers
F02M 26/25 Layout, e.g. schematics with coolers having bypasses
F02M 26/26 Layout, e.g. schematics with coolers having bypasses - characterised by details of the bypass valve
F02M 26/27 Layout, e.g. schematics with air-cooled heat exchangers
F02M 26/28 Layout, e.g. schematics with liquid-cooled heat exchangers
F02M 26/29 Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
F02M 26/30 Connections of coolers to other devices, e. g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
F02M 26/31 Air-cooled heat exchangers
F02M 26/32 Liquid-cooled heat exchangers
F02M 26/33 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage controlling the temperature of the recirculated gases
F02M 26/34 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
F02M 26/35 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
F02M 26/36 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with reformers
F02M 26/37 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with temporary storage of recirculated exhaust gas
F02M 26/38 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in parallel
F02M 26/39 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in series
F02M 26/40 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with arrangements involving pressure pulsations
F02M 26/41 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds;  characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
F02M 26/42 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
F02M 26/43 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine
F02M 26/44 Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which a main EGR passage is branched into multiple passages
F02M 26/45 Sensors specially adapted for EGR systems
F02M 26/46 Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
F02M 26/47 Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
F02M 26/48 EGR valve position sensors
F02M 26/49 Detecting, diagnosing or indicating an abnormal function of the EGR system
F02M 26/50 Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities
F02M 26/51 EGR valves combined with other devices, e.g. with intake valves or compressors
F02M 26/52 Systems for actuating EGR valves
F02M 26/53 Systems for actuating EGR valves using electric actuators, e.g. solenoids
F02M 26/54 Rotary actuators, e.g. step motors
F02M 26/55 Systems for actuating EGR valves using vacuum actuators
F02M 26/56 Systems for actuating EGR valves using vacuum actuators having pressure modulation valves
F02M 26/57 Systems for actuating EGR valves using vacuum actuators having pressure modulation valves using electronic means, e.g. electromagnetic valves
F02M 26/58 Constructional details of the actuator; Mounting thereof
F02M 26/59 Systems for actuating EGR valves using positive pressure actuators; Check valves therefor
F02M 26/60 Systems for actuating EGR valves using positive pressure actuators; Check valves therefor in response to air intake pressure
F02M 26/61 Systems for actuating EGR valves using positive pressure actuators; Check valves therefor in response to exhaust pressure
F02M 26/62 Systems for actuating EGR valves using positive pressure actuators; Check valves therefor in response to fuel pressure
F02M 26/63 Systems for actuating EGR valves the EGR valve being directly controlled by an operator
F02M 26/64 Systems for actuating EGR valves the EGR valve being operated together with an intake air throttle
F02M 26/65 Constructional details of EGR valves
F02M 26/66 Lift valves, e.g. poppet valves
F02M 26/67 Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
F02M 26/68 Closing members; Valve seats; Flow passages
F02M 26/69 Lift valves, e.g. poppet valves having two or more valve-closing members
F02M 26/70 Flap valves; Rotary valves; Sliding valves; Resilient valves
F02M 26/71 Multi-way valves
F02M 26/72 Housings
F02M 26/73 Housings with means for heating or cooling the EGR valve
F02M 26/74 Protection from damage, e.g. shielding means
F02M 27/00 Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sonic waves, or the like
F02M 27/02 Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sonic waves, or the like by catalysts
F02M 27/04 Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sonic waves, or the like by electric means or magnetism
F02M 27/06 Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sonic waves, or the like by rays
F02M 27/08 Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sonic waves, or the like by sonic or ultrasonic waves
F02M 29/00 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
F02M 29/02 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having rotary parts
F02M 29/04 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
F02M 29/06 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like generating whirling motion of mixture
F02M 29/08 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like having spirally-wound wires
F02M 29/10 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like adjustable
F02M 29/12 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having homogenising valves held open by mixture current
F02M 29/14 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture re-atomising or homogenising being effected by unevenness of internal surfaces of mixture intake
F02M 31/00 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
F02M 31/02 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
F02M 31/04 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
F02M 31/06 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
F02M 31/07 Temperature-responsive control, e.g. using thermostatically-controlled valves
F02M 31/08 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air the gases being exhaust gases
F02M 31/10 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants
F02M 31/12 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
F02M 31/13 Combustion air
F02M 31/14 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating by using heat from working cylinders or cylinder heads
F02M 31/16 Other apparatus for heating fuel
F02M 31/18 Other apparatus for heating fuel to vaporise fuel
F02M 31/20 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
F02M 31/083 Temperature-responsive control of the amount of exhaust gas or combustion air directed to the heat exchange surface
F02M 31/087 Heat-exchange arrangements between the air intake and exhaust gas passages, e.g. by means of contact between the passages
F02M 31/093 Air intake passage surrounding the exhaust gas passage; Exhaust gas passage surrounding the air intake passage
F02M 31/125 Fuel
F02M 31/135 Fuel-air mixture
F02M 33/00 Other apparatus for treating combustion-air, fuel or fuel-air mixture
F02M 33/02 Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel
F02M 33/04 Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel returning to the intake passage
F02M 33/06 Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel returning to the intake passage with simultaneous heat supply
F02M 33/08 Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel returning to the fuel tank
F02M 35/00 Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
F02M 35/02 Air cleaners
F02M 35/04 Air cleaners specially arranged with respect to engine; Mounting thereon
F02M 35/06 Air cleaners specially arranged with respect to engine; Mounting thereon combined or associated with engine's cooling blower or fan, or with flywheel
F02M 35/08 Air cleaners with by-pass means
F02M 35/09 Clogging indicators
F02M 35/10 Air intakes; Induction systems
F02M 35/12 Intake silencers
F02M 35/14 Combined air cleaners and silencers
F02M 35/16 Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
F02M 35/022 Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
F02M 35/024 Air cleaners using filters, e.g. moistened
F02M 35/026 Air cleaners acting by guiding the air over or through an oil or other liquid bath, e.g. combined with filters
F02M 35/104 Intake manifolds
F02M 35/108 Intake manifolds with primary and secondary intake passages
F02M 35/112 Intake manifolds for engines with cylinders all in one line
F02M 35/116 Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
F02M 37/00 Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 37/02 Feeding by means of suction apparatus, e.g. by air flow through carburettors
F02M 37/04 Feeding by means of driven pumps
F02M 37/06 Feeding by means of driven pumps mechanically driven
F02M 37/08 Feeding by means of driven pumps electrically driven
F02M 37/10 Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
F02M 37/12 Feeding by means of driven pumps fluid-driven, e.g. by compressed combustion-air
F02M 37/14 Feeding by means of driven pumps the pumps being combined with other apparatus
F02M 37/16 Feeding by means of driven pumps characterised by provision of personally-, e.g. manually-, operated pumps
F02M 37/18 Feeding by means of driven pumps characterised by provision of main and auxiliary pumps
F02M 37/20 Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
F02M 37/22 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
F02M 37/24 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
F02M 37/26 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
F02M 37/28 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means with means activated by the presence of water, e.g. alarms or means for automatic drainage
F02M 37/30 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by heating means
F02M 37/32 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
F02M 37/34 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous
F02M 37/36 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements with bypass means
F02M 37/38 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements with regeneration means
F02M 37/40 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements with means for detection of clogging
F02M 37/42 Installation or removal of filters
F02M 37/44 Filters structurally associated with pumps
F02M 37/46 Filters structurally associated with pressure regulators
F02M 37/48 Filters structurally associated with fuel valves
F02M 37/50 Filters arranged in or on fuel tanks
F02M 37/52 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements using magnetic means
F02M 37/54 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by air purging means
F02M 39/00 Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
F02M 39/02 Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
F02M 41/00 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
F02M 41/02 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements
F02M 41/04 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements the distributor reciprocating
F02M 41/06 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements the distributor rotating
F02M 41/08 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
F02M 41/10 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
F02M 41/12 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
F02M 41/14 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
F02M 41/16 Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor characterised by the distributor being fed from a constant-pressure source, e.g. accumulator
F02M 43/00 Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
F02M 43/02 Pumps peculiar thereto
F02M 43/04 Injectors peculiar thereto
F02M 45/00 Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
F02M 45/02 Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
F02M 45/04 Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part
F02M 45/06 Pumps peculiar thereto
F02M 45/08 Injectors peculiar thereto
F02M 45/10 Other injectors with multiple-part delivery, e.g. with vibrating valves
F02M 45/12 Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous delivery with variable pressure
F02M 47/00 Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
F02M 47/02 Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02M 47/04 Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure using fluid, other than fuel, for injection-valve actuation
F02M 47/06 Other fuel injectors peculiar thereto
F02M 49/00 Fuel-injection apparatus in which injection pumps are driven, or injectors are actuated, by the pressure in engine working cylinders, or by impact of engine working piston
F02M 49/02 Fuel-injection apparatus in which injection pumps are driven, or injectors are actuated, by the pressure in engine working cylinders, or by impact of engine working piston using the cylinder pressure, e.g. compression end pressure
F02M 49/04 Fuel-injection apparatus in which injection pumps are driven, or injectors are actuated, by the pressure in engine working cylinders, or by impact of engine working piston using the piston impact
F02M 51/00 Fuel-injection apparatus characterised by being operated electrically
F02M 51/02 Fuel-injection apparatus characterised by being operated electrically specially for low-pressure fuel-injection
F02M 51/04 Pumps peculiar thereto
F02M 51/06 Injectors peculiar thereto
F02M 51/08 Injectors peculiar thereto specially for low-pressure fuel-injection
F02M 53/00 Fuel-injection apparatus characterised by having heating, cooling, or thermally-insulating means
F02M 53/02 Fuel-injection apparatus characterised by having heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
F02M 53/04 Injectors with heating, cooling, or thermally-insulating means
F02M 53/06 Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
F02M 53/08 Injectors with heating, cooling, or thermally-insulating means with air cooling
F02M 55/00 Fuel-injection apparatus characterised by their fuel conduits or their venting means
F02M 55/02 Conduits between injection pumps and injectors
F02M 55/04 Means for damping vibrations in injection-pump inlets
F02M 57/00 Fuel injectors combined or associated with other devices
F02M 57/02 Injectors structurally combined with fuel-injection pumps
F02M 57/04 Fuel injectors combined or associated with other devices the devices being combustion-air intake or exhaust valves
F02M 57/06 Fuel injectors combined or associated with other devices the devices being sparking-plugs
F02M 59/00 Pumps specially adapted for fuel-injection and not provided for in groups
F02M 59/02 Pumps specially adapted for fuel-injection and not provided for in groups of reciprocating-piston type
F02M 59/04 Pumps specially adapted for fuel-injection and not provided for in groups of reciprocating-piston type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft
F02M 59/06 Pumps specially adapted for fuel-injection and not provided for in groups of reciprocating-piston type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft with cylinders arranged radially to driving shaft, e.g. in V- or star-arrangement
F02M 59/08 Pumps specially adapted for fuel-injection and not provided for in groups of reciprocating-piston type characterised by two or more pumping elements with conjoint outlet
F02M 59/10 Pumps specially adapted for fuel-injection and not provided for in groups of reciprocating-piston type characterised by the piston drive
F02M 59/12 Pumps specially adapted for fuel-injection and not provided for in groups having other positive-displacement pumping elements, e.g. rotary
F02M 59/14 Pumps specially adapted for fuel-injection and not provided for in groups having other positive-displacement pumping elements, e.g. rotary of elastic-wall type
F02M 59/16 Pumps specially adapted for fuel-injection and not provided for in groups characterised by having multi-stage compression of fuel
F02M 59/18 Pumps specially adapted for fuel-injection and not provided for in groups characterised by the pumping action being achieved through release of pre-compressed springs
F02M 59/20 Varying fuel delivery in quantity or timing
F02M 59/22 Varying quantity by adjusting cylinder-head space
F02M 59/24 Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
F02M 59/26 Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
F02M 59/28 Mechanisms therefor
F02M 59/30 Varying fuel delivery in quantity or timing with variable-length-stroke pistons
F02M 59/32 Varying fuel delivery in quantity or timing fuel delivery being controlled by means of fuel-displaced auxiliary pistons, which effect injection
F02M 59/34 Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages
F02M 59/36 Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages
F02M 59/38 Pumps characterised by adaptations to special uses or conditions
F02M 59/40 Pumps characterised by adaptations to special uses or conditions for reversible engines
F02M 59/42 Pumps characterised by adaptations to special uses or conditions for starting of engines
F02M 59/44 Pumps specially adapted for fuel-injection and not provided for in groups - Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups
F02M 59/46 Valves
F02M 59/48 Assembling; Disassembling; Replacing
F02M 61/00 Fuel injectors not provided for in groups  or
F02M 61/02 Fuel injectors not provided for in groups  or of valveless type
F02M 61/04 Fuel injectors not provided for in groups  or having valves
F02M 61/06 Fuel injectors not provided for in groups  or having valves the valves being furnished at seated ends with pintle- or plug-shaped extensions
F02M 61/08 Fuel injectors not provided for in groups  or having valves the valves opening in direction of fuel flow
F02M 61/10 Other injectors with elongated valve bodies, i.e. of needle-valve type
F02M 61/12 Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
F02M 61/14 Arrangements of injectors with respect to engines; Mounting of injectors
F02M 61/16 Fuel injectors not provided for in groups  or - Details not provided for in, or of interest apart from, the apparatus of groups
F02M 61/18 Injection nozzles, e.g. having valve-seats
F02M 61/20 Closing valves mechanically, e.g. arrangements of springs or weights
F02M 63/00 SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups  or     
F02M 63/02 Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
F02M 63/04 Fuel-injection apparatus having injection valves held closed by a cyclically-operated mechanism for a time and automatically opened by fuel pressure, e.g. of constant-pressure pump or accumulator, when that mechanism releases the valve
F02M 63/06 Use of pressure wave generated by fuel inertia to open injection valves
F02M 65/00 Testing fuel-injection apparatus, e.g. testing injection timing
F02M 67/00 Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
F02M 67/02 Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being compressed air, e.g. compressed in pumps
F02M 67/04 Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being compressed air, e.g. compressed in pumps the air being extracted from working cylinders of the engine
F02M 67/06 Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being other than air, e.g. steam, combustion gas
F02M 67/08 Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being other than air, e.g. steam, combustion gas the gas being generated by combustion of part of fuel other than in engine working cylinders
F02M 67/10 Injectors peculiar thereto, e.g. of valveless type
F02M 67/12 Injectors peculiar thereto, e.g. of valveless type having valves
F02M 67/14 Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type characterised by provisions for injecting different fuels, e.g. main fuel and readily self-igniting starting-fuel
F02M 69/00 Low-pressure fuel-injection apparatus
F02M 69/02 Pumps peculiar thereto
F02M 69/04 Injectors peculiar thereto
F02M 69/06 Low-pressure fuel-injection apparatus characterised by the pressurisation of the fuel being caused by centrifugal force acting on the fuel
F02M 69/08 Low-pressure fuel-injection apparatus characterised by the fuel being carried by compressed air into main stream of combustion-air
F02M 69/10 Low-pressure fuel-injection apparatus peculiar to scavenged two-stroke engines, e.g. injecting into crankcase-pump chamber
F02M 69/12 Low-pressure fuel-injection apparatus comprising a fuel-displaced free piston for intermittently metering and supplying fuel to injection nozzles
F02M 69/14 Low-pressure fuel-injection apparatus having cyclically-operated valves connecting injection nozzles to a source of fuel under pressure during the injection period
F02M 69/16 Low-pressure fuel-injection apparatus characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of injectors
F02M 69/18 Low-pressure fuel-injection apparatus characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or
F02M 69/20 Low-pressure fuel-injection apparatus characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or the device being a servo-motor, e.g. using engine intake air pressure or vacuum
F02M 69/22 Low-pressure fuel-injection apparatus characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or the device comprising a member movably mounted in the air intake conduit and displaced according to the quantity of air admitted to the engine
F02M 69/24 Low-pressure fuel-injection apparatus characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or the device comprising a member for transmitting the movement of the air throttle valve actuated by the operator to the valves controlling fuel passages
F02M 69/26 Low-pressure fuel-injection apparatus characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of injectors the means varying fuel pressure in a fuel by-pass passage, the pressure acting on a throttle valve against the action of metered or throttled fuel pressure for variably throttling fuel flow to injection nozzles, e.g. to keep constant the pressure dif
F02M 69/28 Low-pressure fuel-injection apparatus characterised by means for cutting-out the fuel supply to the engine or to main injectors during certain operating periods, e.g. deceleration
F02M 69/30 Low-pressure fuel-injection apparatus characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines
F02M 69/32 Low-pressure fuel-injection apparatus characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines with an air by-pass around the air throttle valve or with an auxiliary air passage, e.g. with a variably controlled valve therein
F02M 69/34 Low-pressure fuel-injection apparatus characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines with an auxiliary fuel circuit supplying fuel to the engine, e.g. with the fuel pump outlet being directly connected to the injection nozzles
F02M 69/36 Low-pressure fuel-injection apparatus characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages
F02M 69/38 Low-pressure fuel-injection apparatus characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages using fuel pressure, e.g. by varying fuel pressure in the control chambers of the fuel metering device
F02M 69/40 Low-pressure fuel-injection apparatus characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages using variably controlled air pressure, e.g. by modifying the intake air vacuum signal acting on the fuel metering device
F02M 69/42 Low-pressure fuel-injection apparatus characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages using other means than variable fluid pressure, e.g. acting on the fuel metering device mechanically or electrically
F02M 69/44 Low-pressure fuel-injection apparatus characterised by means for supplying extra fuel to the engine on sudden air throttle opening, e.g at acceleration
F02M 69/46 Low-pressure fuel-injection apparatus - Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups
F02M 69/48 Arrangement of air sensors
F02M 69/50 Arrangement of fuel distributors
F02M 69/52 Arrangement of fuel metering devices
F02M 69/54 Arrangement of fuel pressure regulators
F02M 71/00 Combinations of carburettors and low-pressure fuel-injection apparatus
F02M 71/02 Combinations of carburettors and low-pressure fuel-injection apparatus with fuel-air mixture being produced by the carburettor and being compressed by a pump for subsequent injection into main combustion-air
F02M 71/04 Combinations of carburettors and low-pressure fuel-injection apparatus with carburettor being used at starting or idling only and injection apparatus being used during normal operation of engine
F02M 99/00 Subject matter not provided for in other groups of this subclass