F02M 25/00 Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture (adding secondary air to fuel-air mixture F02M23/00; adding exhaust gases F02M26/00; fuel-injection apparatus operating simultaneously on two or more fuels or on a liquid fuel and another liquid F02M43/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
CPC: Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture (adding secondary air to fuel-air mixture F02M23/00; adding exhaust gases F02M26/00; fuel-injection apparatus operating simultaneously on two or more fuels or on a liquid fuel and another liquid F02M43/00)
Full Title
Full titles differ between systems:
Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture (adding secondary air to fuel-air mixture F02M23/00; adding exhaust gases F02M26/00; fuel-injection apparatus operating simultaneously on two or more fuels or on a liquid fuel and another liquid F02M43/00)
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F02M 25/022 Adding fuel and water emulsion, water or steam since 1995 +3 CPC IPC+CPC Available in IPC and CPC
- F02M 25/08 adding fuel vapours drawn from engine fuel reservoir +8 CPC IPC+CPC Available in IPC and CPC
- F02M 25/10 adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone IPC+CPC Available in IPC and CPC
- F02M 25/14 adding anti-knock agents, not provided for in subgroups F02M25/022 - F02M25/10 IPC+CPC Available in IPC and CPC