FUEL SUPPLY CONTROL SYSTEM TO DIESEL INTERNAL COMBUSTION ENGINE Russian patent published in 2019 - IPC F02M39/00 F02D41/10 F02D45/00 

FIELD: engine building.

SUBSTANCE: invention relates to the field of engine building and considers the design of the control system for supply of mixed fuel to the diesel internal combustion engine for implementation of the gas-diesel operating mode. Fuel supply control system to diesel internal combustion engine 1 with at least two cylinders comprises device for generating cyclic dose of high-pressure liquid fuel 3 with possibility to control fuel supply depending on value of engine operation cycles, with dispensing fuel dose into high pressure pipeline 4, connected to high pressure nozzle 2, supplying a dose of liquid fuel into combustion chamber of engine, engine operation cycles sensor 5 made with possibility to receive from engine cycles cyclically moving parts signals about operation cycles and engine crankshaft rotation rpm and generation of signal for transmission to microprocessor module 8, electrically controlled gas dispenser 10 connected to microprocessor module 8 and made with the gas fuel dose dispensing function and mixing with the high pressure feed nozzle 2 by the liquid fuel dose in the engine combustion chamber, wherein on high pressure pipeline 4 there is an electrically controlled high pressure valve 14, which is connected to microprocessor module 8, and microprocessor module 8 is configured to synchronously shut off supply of liquid and gaseous fuel to part of cylinders of engine with implementation of fuel supply in the remaining part of the cylinders according to the liquid fuel dose minimization algorithm due to corresponding compensation of the gas fuel dose with simultaneous preservation of the required energy for the engine operation under the specified mode.

EFFECT: improved operational efficiency of fuel supply control system in internal combustion engine at modes of low cyclic loads, including idling, due to provision of better distribution of ignition dose of diesel fuel in cylinders, reduced value of average air excess coefficient and, consequently, better combustion of gas fuel.

3 cl, 4 dwg