SUPPLY SYSTEM OF INTERNAL-COMBUSTION ENGINE Russian patent published in 2015 - IPC F02M31/16 

FIELD: motors and pumps.

SUBSTANCE: invention relates to engines construction, in particular to supply system of internal-combustion engine. Supply system of the internal-combustion engine contains a fuel tank, LP fuel pump, fine fuel filter, HP fuel pump, nozzle, fuel lines, heat exchanger connected to liquid cooling system of the internal-combustion engine, additionally the system has settling filter in the heat exchanger, the heat exchanger in connected in the supply system between the fuel tank and LP fuel pump; the supply system is equipped with 2-way valve connected between LP pump and fine filter, at that 2-way valve is connected with additional fuel line with HP fuel pump; HP fuel pump is connected with the fuel tank by the drain fuel line passing through the heat exchanger and entering the fuel tank at place of the intake pipe; the supply system is equipped with additional fuel tank with valve and fuel line connecting the additional tank with suction cavity of the LP fuel pump.

EFFECT: assurance of optimal viscosity of the fuel for quick start-up and operation of the engine at low ambient temperatures.

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