Pressure booster for a fuel injection system

Details Pressure booster for a fuel injection system Pressure booster for a fuel injection system

2005-04-26

2005-04-26

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S467000, C239S088000

Reexamination Certificate

active

06883498

ABSTRACT:
A pressure booster of a fuel injection system includes a displaceable piston unit (30a, 31a), which on one end can be subjected to pressure via a pressure booster chamber on the low-pressure side and on the other end has a pressure booster chamber on the high-pressure side for fuel compression. The piston unit has a further piston cross section, which is reduced compared to the first piston cross section provided for imposing pressure, for embodying a differential chamber that is connectable to a leak fuel line. At least one control conduit connects the pressure booster chamber on the low-pressure side to the differential chamber, whose opening is closed or opened as a function of the motion of at least parts of the piston unit.

REFERENCES:
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patent: 0 691 471 (1996-01-01), None

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