Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations

Introduced: September 1968

Of 8 combined children, 4 exist in both systems.

4 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

Child Classifications

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F01L 13/0005 +1 CPC CPC only CPC only
F01L 13/0015 +8 CPC CPC only CPC only
F01L 13/02 for reversing IPC+CPC Available in IPC and CPC
F01L 13/04 for starting by means of fluid pressure IPC+CPC Available in IPC and CPC
F01L 13/06 for braking +1 CPC IPC+CPC Available in IPC and CPC
F01L 13/08 for decompression, e.g. during starting; for changing compression ratio +1 CPC IPC+CPC Available in IPC and CPC
F01L 2013/10 2nd only +5 CPC CPC only CPC only
F01L 2013/11 2nd only +5 CPC CPC only CPC only