FUEL FEED CONTROL SYSTEM TO DIESEL INTERNAL COMBUSTION ENGINE Russian patent published in 2020 - IPC F02D19/10 F02M59/34 

FIELD: machine building.

SUBSTANCE: invention can be used in fuel systems of diesel engines. Fuel management system to diesel internal combustion engine includes liquid fuel supply pump (1), fuel injectors (9), pipeline line (2), normally open valve (3), line (8) for combining inputs of fuel nozzles (9), normally-closed valve (5), regulator (6), line (7) for draining liquid fuel into tank and bypass channel with jet (4). Pump (1) for feeding liquid fuel is configured to vary pressure at its output depending on engine power requirements. Fuel injectors (9) provide, in compliance with cycles, cyclic supply with spraying of liquid fuel into combustion chambers of engine. Number of fuel injectors is not less than one per each cylinder of the engine. Pipeline line (2) connects pump outlet (1) with fuel injector (9) inlet combining line (8). Normal-open valve (3) inlet is connected to liquid fuel pressure release line (2). Output of normally-open valve (3) is connected to line (8) of combining inputs of fuel injectors and input of normally-closed valve (5). Output of normally-closed valve (5) is connected to input of regulator (6). Control (6) is made with possibility to maintain pressure up to itself. Output of regulator (6) is connected with line (7) of liquid fuel drainage into tank. Bypass channel with jet (4) is made parallel to the inlet and outlet of the normally open valve (3).

EFFECT: technical result consists in control of ignition dose of diesel fuel during operation of engines in gas-diesel mode with partial replacement of diesel fuel with gas.

4 cl, 2 dwg