F02P IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES (; specially adapted for rotary-piston or oscillating-piston engines F02B53/12; ; ignition of combustion apparatus in general, glowing plugs F23Q; measuring of physical variables in general G01; controlling in general G05; data processing in general G06; electrical components in general see Section H; ; sparking plugs H01T13/00)
Introduced: September 1968
Description
F02P covers spark ignition systems and related control mechanisms for internal combustion engines, excluding compression-ignition diesel engines. This includes spark plugs, ignition coils, ignition timing control systems, and electronic ignition circuits used in gasoline and gas engines. The subclass also encompasses testing and diagnostic methods for verifying ignition timing accuracy in compression-ignition engines, which require specialized measurement techniques despite their self-igniting fuel mixtures. Adjacent diesel-specific technologies are classified separately under compression-ignition engine provisions.
Title
Titles differ between systems:
IPC: IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
CPC: IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES (; specially adapted for rotary-piston or oscillating-piston engines F02B53/12; ; ignition of combustion apparatus in general, glowing plugs F23Q; measuring of physical variables in general G01; controlling in general G05; data processing in general G06; electrical components in general see Section H; ; sparking plugs H01T13/00)
Full Title
Full titles differ between systems:
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES (; specially adapted for rotary-piston or oscillating-piston engines F02B53/12; ; ignition of combustion apparatus in general, glowing plugs F23Q; measuring of physical variables in general G01; controlling in general G05; data processing in general G06; electrical components in general see Section H; ; sparking plugs H01T13/00)
IPC and CPC are identically structured here. All 12 subcodes exist in both systems.
8 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F02P 1/00 Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage +1 CPC IPC+CPC Available in IPC and CPC
- F02P 11/00 Safety means for electric spark ignition, not otherwise provided for IPC+CPC Available in IPC and CPC
- F02P 13/00 Sparking plugs structurally combined with other parts of internal-combustion engines ( with fuel injectors F02M57/06 ) IPC+CPC Available in IPC and CPC
- F02P 15/00 Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 +3 CPC IPC+CPC Available in IPC and CPC
- F02P 17/00 Testing of ignition installations, e.g. in combination with adjusting (testing fuel injection apparatus F02M65/00; testing ignition installations in general F23Q23/00); Testing of ignition timing in compression-ignition engines +2 CPC IPC+CPC Available in IPC and CPC
- F02P 19/00 Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition IPC+CPC Available in IPC and CPC
- F02P 7/00 Arrangements of distributors, circuit-makers or -breakers, or pick-up devices (advancing or retarding ignition or control therefor F02P5/00; such devices per se, see the relevant classes of Section H, e.g. rotary switches H01H19/00, contact-breakers, distributors H01R39/00, generators H02K) IPC+CPC Available in IPC and CPC
- F02P 9/00 Electric spark ignition control, not otherwise provided for +1 CPC IPC+CPC Available in IPC and CPC