DIFF Subgroup
F02P 5/06 dependent on engine speed
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Advancing or retarding electric ignition spark; Control therefor > automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions > using mechanical means > dependent on engine speed
CPC:
Advancing or retarding ignition; Control therefor > automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions (dependent on position of personal controls of engine F02P5/02) > using mechanical means > dependent on engine speed
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1995.
Child Classifications
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