Fuel injection device for an internal combustion engine

Details Fuel injection device for an internal combustion engine Fuel injection device for an internal combustion engine

2005-06-07

2005-06-07

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C239S533300

Reexamination Certificate

active

06901915

ABSTRACT:
The fuel injection system has one high-pressure fuel pump and one fuel injection valve for each cylinder of the engine. The fuel injection valve has a first hollow injection valve member and a second valve member guided displaceably, inside the first valve member for controlling first and second opening(s), respectively into the associated engine cylinder. The second valve member is movable by the pressure prevailing in a pressure chamber in an opening direction counter to a closing force and is acted upon at least indirectly by the pressure prevailing in a fuel-filled control chamber, which pressure is controllable as a function of operating parameters of the engine such that the second injection valve member, by means of the pressure prevailing in the control chamber, can be blocked, independently of an opening motion of the first injection valve member in a position that closes the at least one second injection opening.

REFERENCES:
patent: 4306528 (1981-12-01), Straubel
patent: 4538576 (1985-09-01), Schneider
patent: 6378503 (2002-04-01), Lambert
patent: 6725838 (2004-04-01), Shafer et al.
patent: 6769635 (2004-08-01), Stewart et al.
patent: 41 23 721 (1992-06-01), None
patent: 100 38 054 (2001-02-01), None
patent: 100 40 738 (2001-03-01), None
patent: 0 972 932 (2000-01-01), None

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