F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
F02M31/00
Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture