GAS-DIESEL ENGINE NATURAL GAS VEHICLE FUEL SUPPLY SYSTEM Russian patent published in 2022 - IPC F02D19/06 F02D19/10 F02M43/00 F02M37/08 

FIELD: engine technology.

SUBSTANCE: invention can be used in fuel supply systems of internal combustion engines (ICE). A gas-diesel engine natural gas vehicle fuel supply system is proposed containing a gas supply line (a); a diesel fuel supply line (b) with a high-pressure pump 14 and injectors 15; an electronic control unit 17; sensors for: the position of the fuel supply rail 21, the crankshaft rotation speed 22, the position of the upper dead center 23, detonation 19, flow 24; electronic fuel supply pedal 26; manual fuel supply regulator 27; “Diesel-Gas diesel” mode switch 29. The system is equipped with an electric high-pressure pump 6 for natural gas vehicle fuel, connecting the source of natural gas vehicle fuel 2 with a high-pressure fuel rail 8 installed in front of the electromagnetic valves 9 for the supply of liquid gas engine fuel, which are located in the cylinder head with direct supply of liquid natural gas vehicle fuel to them, while the supply of liquid natural gas vehicle fuel to the combustion chamber is carried out repeatedly for one stroke of the engine.

EFFECT: increase in the accuracy of adjusting the natural gas vehicle fuel supply, optimization of the supply, improvement of fuel efficiency and environmental performance of the engine is achieved.

1 cl, 1 dwg