IPC Classification

Class code (prefix) Descriptions Number of results
F01P 1/00 Air cooling
F01P 1/02 Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
F01P 1/04 Arrangements for cooling pistons
F01P 1/06 Arrangements for cooling other engine or machine parts
F01P 1/08 Arrangements for cooling other engine or machine parts for cooling intake or exhaust valves
F01P 1/10 Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
F01P 3/00 Liquid cooling
F01P 3/02 Arrangements for cooling cylinders or cylinder heads
F01P 3/04 Liquid-to-air heat-exchangers combined with, or arranged on, cylinders or cylinder heads
F01P 3/06 Arrangements for cooling pistons
F01P 3/08 Cooling of piston exterior only, e.g. by jets
F01P 3/10 Cooling by flow of coolant through pistons
F01P 3/12 Arrangements for cooling other engine or machine parts
F01P 3/14 Arrangements for cooling other engine or machine parts for cooling intake or exhaust valves
F01P 3/16 Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
F01P 3/18 Arrangement or mounting of liquid-to-air heat-exchangers
F01P 3/20 Cooling circuits not specific to a single part of engine or machine
F01P 3/22 Liquid cooling characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
F01P 5/00 Pumping cooling-air or liquid coolants
F01P 5/02 Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
F01P 5/04 Pump-driving arrangements
F01P 5/06 Guiding or ducting air to or from ducted fans
F01P 5/08 Use of engine exhaust gases for pumping cooling-air
F01P 5/10 Pumping liquid coolant; Arrangements of coolant pumps
F01P 5/12 Pump-driving arrangements
F01P 5/14 Safety means against, or active at, failure of coolant-pump drives, e.g. shutting engine down; Means for indicating functioning of coolant pumps
F01P 7/00 Controlling of coolant flow
F01P 7/02 Controlling of coolant flow the coolant being cooling-air
F01P 7/04 Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
F01P 7/06 Controlling of coolant flow the coolant being cooling-air by varying blade pitch
F01P 7/08 Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
F01P 7/10 Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat-exchangers
F01P 7/12 Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat-exchangers by thermostatic control
F01P 7/14 Controlling of coolant flow the coolant being liquid
F01P 7/16 Controlling of coolant flow the coolant being liquid by thermostatic control
F01P 9/00 Cooling having pertinent characteristics not provided for in, or of interest apart from, groups
F01P 9/02 Cooling by evaporation, e.g. by spraying water on to cylinders
F01P 9/04 Cooling having pertinent characteristics not provided for in, or of interest apart from, groups by simultaneous or alternative use of direct air cooling and liquid cooling
F01P 9/06 Cooling having pertinent characteristics not provided for in, or of interest apart from, groups by use of refrigerating apparatus, e.g. of compressor or absorber type
F01P 11/00 Component parts, details, or accessories, not provided for in, or of interest apart from, groups
F01P 11/02 Liquid-coolant overflow, venting, or draining devices
F01P 11/04 Arrangements of liquid pipes or hoses
F01P 11/06 Cleaning; Combating corrosion
F01P 11/08 Arrangements of lubricant coolers
F01P 11/10 Guiding or ducting cooling-air to or from liquid-to-air heat-exchangers
F01P 11/12 Filtering, cooling, or silencing cooling-air
F01P 11/14 Indicating devices; Other safety devices
F01P 11/16 Indicating devices; Other safety devices concerning coolant temperature
F01P 11/18 Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
F01P 11/20 Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather