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

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

2007-10-09

2007-10-09

Lazo, Thomas E. (Department: 3745)

Expansible chamber devices

With lubricating means

Portion of expansible chamber device includes solid...

C092S072000

Reexamination Certificate

active

10537247

ABSTRACT:
A high-pressure pump having a drive shaft and at least one pump element including a pump piston driven in a reciprocating motion by the drive shaft. A ring on which the pump piston is braced via a support element is rotatably supported on a portion of the drive shaft that is disposed eccentrically to its pivot axis. The ring and/or the support element, at least in their contact region, has many microscopic indentations, and a solid lubricant film is applied to the ring and/or to the support element, at least in their contact region.

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