INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)

Child Classifications

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• F02B 1/00 Engines characterised by fuel-air mixture compression (characterised by both fuel-air mixture compression and air compression, or characterised by both positive ignition and compression ignition F02B11/00) IPC+CPC Available in IPC and CPC
• F02B 11/00 Engines characterised by both fuel-air mixture compression and air compression, or characterised by both positive ignition and compression ignition, e.g. in different cylinders IPC+CPC Available in IPC and CPC
• F02B 13/00 Engines characterised by the introduction of liquid fuel into cylinders by use of auxiliary fluid IPC+CPC Available in IPC and CPC
• F02B 15/00 Engines characterised by the method of introducing liquid fuel into cylinders and not otherwise provided for IPC+CPC Available in IPC and CPC
• F02B 17/00 Engines characterised by means for effecting stratification of charge in cylinders +1 CPC IPC+CPC Available in IPC and CPC
• F02B 19/00 Engines characterised by precombustion chambers +2 CPC IPC+CPC Available in IPC and CPC
• F02B 21/00 Engines characterised by air-storage chambers IPC+CPC Available in IPC and CPC
• F02B 2201/00 Fuels 2nd only +3 CPC CPC only CPC only
• F02B 2275/00 Other engines, components or details, not provided for in other groups of this subclass 2nd only +22 CPC CPC only CPC only
• F02B 23/00 Other engines characterised by special shape or construction of combustion chambers to improve operation (engines with incandescent chambers F02B9/08) IPC+CPC Available in IPC and CPC
• F02B 25/00 Engines characterised by using fresh charge for scavenging cylinders IPC+CPC Available in IPC and CPC
• F02B 27/00 Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues +4 CPC IPC+CPC Available in IPC and CPC
• F02B 2700/00 Measures relating to the combustion process without indication of the kind of fuel or with more than one fuel 2nd only +2 CPC CPC only CPC only
• F02B 2710/00 Gas engines 2nd only +2 CPC CPC only CPC only
• F02B 2720/00 Engines with liquid fuel 2nd only +11 CPC CPC only CPC only
• F02B 2730/00 Internal-combustion engines with pistons rotating or oscillating with relation to the housing 2nd only +5 CPC CPC only CPC only
• F02B 29/00 Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof IPC+CPC Available in IPC and CPC
• F02B 3/00 Engines characterised by air compression and subsequent fuel addition (characterised by both fuel-air mixture compression and air compression, or characterised by both positive ignition and compression ignition F02B11/00) IPC+CPC Available in IPC and CPC
• F02B 31/00 Modifying induction systems for imparting a rotation to the charge in the cylinder (air intakes or induction systems for internal-combustion engines F02M35/10) IPC+CPC Available in IPC and CPC
• F02B 33/00 Engines characterised by provision of pumps for charging or scavenging IPC+CPC Available in IPC and CPC
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