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PCE
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DIFF Subgroup
F02M 25/022

Adding fuel and water emulsion, water or steam

Introduced: January 1995

Full Title

Full 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 > Adding fuel and water emulsion, water or steam

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) > Adding fuel and water emulsion, water or steam

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

IPC defines codes here since 1995.

Child Classifications

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