Fuel injection device comprising a pressure amplifier

Details Fuel injection device comprising a pressure amplifier Fuel injection device comprising a pressure amplifier

2005-05-24

2005-05-24

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S496000

Reexamination Certificate

active

06895935

ABSTRACT:
A fuel injection system includes a pressure booster having a displaceable piston which can be subjected to pressure via a pressure booster chamber on the low-pressure side for compressing the fuel in a pressure booster chamber on the high-pressure side to be delivered to an injector. The stroke of the piston is controllable by the pressure in a differential chamber of the pressure booster and is used to vary the fuel pressure delivered to the injector. Means for continuously variable definition of the inlet cross section to the pressure booster chamber of the pressure booster on the low-pressure side or of the outlet cross section from the differential chamber of the pressure booster are provided.

REFERENCES:
patent: 3893629 (1975-07-01), Okamoto
patent: 4372272 (1983-02-01), Walter et al.
patent: 5622152 (1997-04-01), Ishida
patent: 6293252 (2001-09-01), Niethammer et al.
patent: 6446603 (2002-09-01), Bonse et al.
patent: 6604507 (2003-08-01), Lei et al.
patent: 19848904 (2000-04-01), None
patent: 19910970 (2000-09-01), None
patent: 19949848 (2001-04-01), None

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