Distribution or expansion valve-gear peculiar to free-piston machines or engines and not provided for in F01L21/00 - F01L25/00

Introduced: September 1968

Title

Titles differ between systems:

IPC: Distribution or expansion-valve gear peculiar to free-piston machines or engines and not provided for in groups

CPC: Distribution or expansion valve-gear peculiar to free-piston machines or engines and not provided for in F01L21/00 - F01L25/00

Full titles differ between systems:

IPC:

Distribution or expansion-valve gear peculiar to free-piston machines or engines and not provided for in groups

CPC:

Distribution or expansion valve-gear peculiar to free-piston machines or engines and not provided for in F01L21/00 - F01L25/00

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

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F01L 27/02 the machine or engine having rotary or oscillatory valves IPC+CPC Available in IPC and CPC
F01L 27/04 Delayed-action controls, e.g. of cataract or dashpot type IPC+CPC Available in IPC and CPC

Class F01,2013–2023, worldwide · Source: EPO PATSTAT

Class F01,2013–2023, worldwide · Source: EPO PATSTAT