DIESEL ENGINE CYLINDER FUEL FEED ADJUSTMENT METHOD Russian patent published in 2008 - IPC F02M63/04 

FIELD: engines and pumps.

SUBSTANCE: diesel engine cylinder fuel feed adjustment method incorporating an adjustable initial pressure fuel feed system comprising a fuel accumulator communicating, via a distributing device, with a high-pressure line, consists in that the fuel feed is cut off with at an additional stroke of the pump plunger, and the pressure is released till a preset initial pressure in the high-pressure line by varying the valve operation time. Cutting off is effected during the pump plunger main stroke till a preset maximum fuel pressure in the accumulator by varying the distributor solenoid valve closed state time. There after, cutting in is effected prior to injecting a preset amount of fuel into the diesel engine cylinder by varying the distributor solenoid valve closing time. Releasing the pressure in the high-pressure line is made till a fuel initial pressure in injector chamber on opening the connecting channel.

EFFECT: higher injection intensity, stability and regularity of fuel injection in engine cylinders.

6 dwg