High-pressure pump for a fuel-injection device of an...

Details High-pressure pump for a fuel-injection device of an... High-pressure pump for a fuel-injection device of an...

2007-10-23

2007-10-23

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C417S273000

Reexamination Certificate

active

10568811

ABSTRACT:
A high-pressure pump having a rotationally driven drive shaft with a shaft portion embodied eccentrically to its axis of rotation, on which shaft portion a ring is rotatably supported. At least one pump element, has a pump piston, driven at least indirectly in a reciprocating motion by the drive shaft via the ring and resting at least indirectly on the ring. The ring is provided, at least on its outer face facing away from the shaft portion, with a coating of a friction-reducing paint in at least one region, in which the at least one pump piston rests at least indirectly on the ring.

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patent: 0 984 161 (2000-03-01), None
patent: 1 310 577 (2003-05-01), None

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