INTERNAL COMBUSTION ENGINE FUEL SYSTEM Russian patent published in 2002 - IPC

FIELD: mechanical engineering; starting devices of internal combustion engines. SUBSTANCE: proposed fuel system of internal combustion engine has carburetor, intake pipeline, fuel tank connected with carburetor input by fuel feed line. Fuel feed line includes fuel feed pump whose input is connected with fuel tank through connecting pipeline and fuel filter. Output of fuel feed pump is connected with carburetor through connecting pipeline. System includes also starting fuel feed device, electromagnetic valve, reservoir, control unit, ultrasound range voltage generator and source of dc voltage. Starting fuel feed device has vessel, piezoelectric plate regulator of tolerable fuel level in vessel, for instance, minimum fuel level transmitter in vessel, fuel feed branch pipe, air feed pipeline and outlet pipeline connected with upper part of vessel. EFFECT: reduced consumption of power and fuel when starting internal combustion engine at low ambient temperatures. 22 cl, 4 dwg