Fuel injection device

Details Fuel injection device Fuel injection device

2005-04-19

2005-04-19

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S447000

Reexamination Certificate

active

06880527

ABSTRACT:
A fuel injection system for internal combustion engines includes an injector supplied from a high-pressure fuel source and with a pressure booster device, in which the closing piston can be acted upon by fuel pressure to attain a force exerted on the closing piston in the closing direction, and in which the closing pressure chamber and the return chamber of the pressure booster device are formed by a common closing pressure return chamber, and all the portions of the closing pressure return chamber communicate with one another permanently for exchanging fuel, so that despite a low pressure boost by the pressure booster device, a relatively low injection opening pressure is attainable.

REFERENCES:
patent: 6634336 (2003-10-01), Kropp
patent: WO 0133067 (2001-05-01), None
patent: 2074975 (1992-12-01), None
patent: 2078244 (1995-03-01), None

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