DIFF Subgroup
F02M 3/04 under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Idling devices for carburettors > Preventing flow of idling fuel > under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
CPC:
Idling devices for carburettors (with means for facilitating engine's idling below operational temperatures F02M1/00) > Preventing flow of idling fuel > under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
Of 6 combined children, 3 exist in both systems.
3 codes are CPC-only extensions.
IPC defines codes here since 1985.
Child Classifications
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- F02M 3/045 Control of valves situated in the idling nozzle system, or the passage system, by electrical means or by a combination of electrical means with fluidic or mechanical means since 1985 IPC+CPC Available in IPC and CPC
- F02M 3/05 Pneumatic or mechanical control, e.g. with speed regulation since 1985 IPC+CPC Available in IPC and CPC
- F02M 3/055 Fuel flow cut-off by introducing air, e.g. brake air, into the idling fuel system since 1985 IPC+CPC Available in IPC and CPC