SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

Description

F02M covers systems and methods for supplying fuel, air, and combustible mixtures to internal combustion engines, encompassing fuel injection, carburetion, intake manifold design, and mixture preparation technologies. This subclass includes fuel delivery mechanisms, atomization devices, mixing chambers, and control systems that regulate the composition and flow of combustible charges to engine cylinders across gasoline, diesel, and alternative fuel applications. It addresses both conventional carburetors and modern direct injection systems, as well as air intake regulation and emission control devices that affect mixture composition. F02M excludes fuel storage and transport systems (covered in F02M's parent F02), as well as ignition systems and the actual combustion process within cylinders.

41 direct subcodes

Child Classifications

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F02M 1/00 Carburettors with means for facilitating engine's starting or its idling below operational temperatures
F02M 11/00 Multi-stage carburettors, Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve
F02M 13/00 Arrangements of two or more separate carburettors (re-atomising condensed fuel or homogenising fuel-air mixture F02M29/00); Carburettors using more than one fuel (apparatus for adding small quantities of secondary fuel F02M25/00)
F02M 15/00 Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel, or fuel-air mixture
F02M 17/00 Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00 (apparatus for treating combustion-air, fuel, or fuel-air mixture by catalysts, electric means, magnetism, rays, sonic waves, or the like F02M27/00; combinations of carburettors and low-pressure fuel-injection apparatus F02M71/00)
F02M 19/00 Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
F02M 21/00 Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
F02M 2200/00 Details of fuel-injection apparatus, not otherwise provided for
F02M 23/00 Apparatus for adding secondary air to fuel-air mixture
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)
F02M 2547/00 Special features for fuel-injection valves actuated by fluid pressure
F02M 26/00 Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
F02M 27/00 Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
F02M 2700/00 Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
F02M 29/00 Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture (combined with secondary-air supply F02M23/12 )
F02M 3/00 Idling devices for carburettors (with means for facilitating engine's idling below operational temperatures F02M1/00)
F02M 31/00 Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture (carburettors with heating, cooling or thermal insulating means for combustion-air, fuel or fuel-air mixture F02M15/00; apparatus for de-liquefying non-liquid fuels by heating F02M21/06; apparatus having heating means for non-gaseous fuels with low melting point F02M21/10; apparatus characterised by adding hot secondary air to fuel-air mixture F02M23/14; fuel-injection apparatus characterised by having heating, cooling or thermally insulating means F02M53/00)
F02M 33/00 Other apparatus for treating combustion-air, fuel or fuel-air mixture (combustion-air cleaners F02M35/00; arrangements for purifying liquid fuel F02M37/22)
F02M 35/00 Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
F02M 37/00 Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines