Engines with reciprocating-piston pumps; Engines with crankcase pumps

Introduced: September 1968

Full Title

Engines characterised by provision of pumps for charging or scavenging > Engines with reciprocating-piston pumps; Engines with crankcase pumps

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

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F02B 33/04 with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase IPC+CPC Available in IPC and CPC
F02B 33/06 with reciprocating-piston pumps other than simple crankcase pumps IPC+CPC Available in IPC and CPC
F02B 33/24 with crankcase pumps other than with reciprocating pistons only IPC+CPC Available in IPC and CPC
F02B 33/26 Four-stroke engines characterised by having crankcase pumps IPC+CPC Available in IPC and CPC
F02B 33/28 Component parts, details or accessories of crankcase pumps, not provided for in, or of interest apart from, subgroups F02B33/02 - F02B33/26 IPC+CPC Available in IPC and CPC

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

Class F02,2013–2023, worldwide · Source: EPO PATSTAT