Fuel injection system for an internal combustion engine

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

2005-12-20

2005-12-20

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S458000

Reexamination Certificate

active

06976473

ABSTRACT:
The fuel injection system has a high-pressure pump, by which fuel is pumped into a reservoir, with which injectors disposed on cylinders of the engine communicate. A feed pump pumps fuel out of a fuel tank to the high-pressure pump and a fuel metering device triggered by a control unit and disposed between the feed pump and the high-pressure pump controls the fuel quantity delivered to the high-pressure pump. The fuel metering device is formed by a clocking valve, which is opened and closed in pulse-width-modulated fashion by the control unit, and the fuel quantity delivered to the intake side of the high-pressure pump is proportional to the opening duration of the clocking valve.

REFERENCES:
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patent: 5762033 (1998-06-01), Rembold et al.
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patent: 6142747 (2000-11-01), Rosenau et al.
patent: 6253734 (2001-07-01), Rembold et al.
patent: 2003/0136384 (2003-07-01), Linden et al.

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