Fuel injection device for an internal combustion engine

Internal-combustion engines – Charge forming device – Fuel injection system

Reexamination Certificate

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Details

C123S506000, C123S496000

Reexamination Certificate

active

06889657

ABSTRACT:
The fuel injection device has a high-pressure pump (14) that supplies fuel to a reservoir and is connected to injectors disposed in the cylinders of the engine. A fuel-supply pump delivers fuel from a fuel tank to the suction side of the high-pressure pump. An electrically actuated control valve adjusts the quantity of fuel that the high-pressure pump delivers to the reservoir. The control valve is disposed on the pressure side of the high-pressure pump and can be switched between a first position, in which the pressure side of the high-pressure pump is closed off from a pressure relief region, and a second position, in which the pressure side of the high-pressure pump is connected to the pressure relief region.

REFERENCES:
patent: 5094216 (1992-03-01), Miyaki et al.
patent: 5911208 (1999-06-01), Furusawa et al.
patent: 6095118 (2000-08-01), Klinger et al.
patent: 6102010 (2000-08-01), Isozumi et al.
patent: 6135090 (2000-10-01), Kawachi et al.
patent: 6237573 (2001-05-01), Onishi et al.
patent: 6546918 (2003-04-01), Onishi et al.
patent: 6694952 (2004-02-01), Yamazaki et al.

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