IPC Classification

Class code (prefix) Descriptions Number of results
F01K 1/00 Steam accumulators
F01K 1/02 Steam accumulators for storing steam otherwise than in a liquid
F01K 1/04 Steam accumulators for storing steam in a liquid, e.g. Ruth type
F01K 1/06 Internal fittings facilitating steam distribution, steam formation, or circulation
F01K 1/08 Charging or discharging of accumulators with steam
F01K 1/10 Steam accumulators specially adapted for superheated steam
F01K 1/12 Multiple accumulators; Charging, discharging or control specially adapted therefor
F01K 1/14 Circulation
F01K 1/16 Other safety or control means
F01K 1/18 Other safety or control means for steam pressure
F01K 1/20 Other steam-accumulator parts, details, or accessories
F01K 3/00 Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
F01K 3/02 Use of accumulators and specific engine types; Control thereof
F01K 3/04 Use of accumulators and specific engine types; Control thereof the engine being of multiple-inlet-pressure type
F01K 3/06 Use of accumulators and specific engine types; Control thereof the engine being of extraction or non-condensing type
F01K 3/08 Use of accumulators, the plant being specially adapted for a specific use
F01K 3/10 Use of accumulators, the plant being specially adapted for a specific use for vehicle drive, e.g. for accumulator locomotives
F01K 3/12 Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having two or more accumulators
F01K 3/14 Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having both steam accumulator and heater, e.g. superheating accumulator
F01K 3/16 Mutual arrangement of accumulator and heater
F01K 3/18 Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
F01K 3/20 Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by combustion gases of main boiler
F01K 3/22 Controlling, e.g. starting, stopping
F01K 3/24 Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters
F01K 3/26 Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by steam
F01K 5/00 Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type
F01K 5/02 Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type used in regenerative installation
F01K 7/00 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
F01K 7/02 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
F01K 7/04 Control means specially adapted therefor
F01K 7/06 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-inlet-pressure type
F01K 7/08 Control means specially adapted therefor
F01K 7/10 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating characterised by the engine exhaust pressure
F01K 7/12 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating characterised by the engine exhaust pressure of condensing type
F01K 7/14 Control means specially adapted therefor
F01K 7/16 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
F01K 7/18 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbine being of multiple-inlet-pressure type
F01K 7/20 Control means specially adapted therefor
F01K 7/22 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
F01K 7/24 Control or safety means specially adapted therefor
F01K 7/26 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam accumulation
F01K 7/28 Control means specially adapted therefor
F01K 7/30 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines using exhaust steam only
F01K 7/32 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or over-critical pressure
F01K 7/34 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
F01K 7/36 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of positive-displacement type
F01K 7/38 Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
F01K 7/40 Use of two or more feed-water heaters in series
F01K 7/42 Use of desuperheaters for feed-water heating
F01K 7/44 Use of steam for feed-water heating and another purpose
F01K 9/00 Steam engine plants characterised by condensers arranged or modified to co-operate with the engines
F01K 9/02 Arrangements or modifications of condensate or air pumps
F01K 9/04 Steam engine plants characterised by condensers arranged or modified to co-operate with the engines with dump valves to by-pass stages
F01K 11/00 Steam engine plants characterised by the engines being structurally combined with boilers or condensers
F01K 11/02 Steam engine plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
F01K 11/04 Steam engine plants characterised by the engines being structurally combined with boilers or condensers the boilers or condensers being rotated in use
F01K 13/00 General layout or general methods of operation, of complete steam engine plants
F01K 13/02 Controlling, e.g. stopping or starting
F01K 15/00 Adaptations of steam engine plants for special use
F01K 15/02 Adaptations of steam engine plants for special use for driving vehicles, e.g. locomotives
F01K 15/04 Adaptations of steam engine plants for special use for driving vehicles, e.g. locomotives the vehicles being waterborne vessels
F01K 17/00 Use of steam or condensate extracted or exhausted from steam engine plant
F01K 17/02 Use of steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
F01K 17/04 Use of steam or condensate extracted or exhausted from steam engine plant for specific purposes other than heating
F01K 17/06 Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel of plant
F01K 19/00 Regenerating or otherwise treating steam exhaust from steam engine plant
F01K 19/02 Regenerating by compression
F01K 19/04 Regenerating by compression in combination with cooling or heating
F01K 19/06 Regenerating by compression in engine cylinder
F01K 19/08 Regenerating by compression compression done by injection apparatus, jet blower, or the like
F01K 19/10 Cooling exhaust steam other than by condenser; Rendering exhaust steam invisible
F01K 21/00 Steam engine plants not otherwise provided for
F01K 21/02 Steam engine plants not otherwise provided for with steam generation in engine cylinders
F01K 21/04 Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
F01K 21/06 Treating live steam, other than thermodynamically, e.g. for fighting deposits in engine
F01K 23/00 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
F01K 23/02 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
F01K 23/04 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled condensation heat from one cycle heating the fluid in another cycle
F01K 23/06 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
F01K 23/08 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with working fluid of one cycle heating the fluid in another cycle
F01K 23/10 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
F01K 23/12 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled
F01K 23/14 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled including at least one combustion engine
F01K 23/16 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled all the engines being turbines
F01K 23/18 Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids characterised by adaptation for specific use
F01K 25/00 Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
F01K 25/02 Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for the fluid remaining in the liquid phase
F01K 25/04 Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for the fluid being in different phases, e.g. foamed
F01K 25/06 Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
F01K 25/08 Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
F01K 25/10 Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
F01K 25/12 Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being metallic, e.g. mercury
F01K 25/14 Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours using industrial or other waste gases
F01K 27/00 Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
F01K 27/02 Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat