METHOD OF FUEL FEED Russian patent published in 2009 - IPC F02M51/00 F02M47/02 

FIELD: engines and pumps.

SUBSTANCE: invention relates to engine production and serves to feed fuel into the diesel engine combustion chamber. The proposed method comprises fuel feed to jet subneedle space from hydraulic line with high-pressure created by piston and plunger during intensifier travel. Note here that the sprayer needle hydraulic locking is effected by feeding fuel via additional duct from accumulator to hydraulic locking intensifier piston, while draining the fuel, that leaks in gaps of precision pairs of aforesaid intensifier piston and sprayer from subneedle space of pump-sprayer-jet, is realised via forced displacement of fuel by pressure created during the travel of intensifier piston and sprayer needle via additional duct communicating the subneedle space arranged below hydraulic locking intensifier piston into the additional fuel drain duct running into the drain chamber right behind electromagnetic valve.

EFFECT: improved fuel injection.

2 dwg