The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 27, 2010

Filed:

Jul. 27, 2005
Applicant:

Ngoc-tam VU, Ludwigsburg, DE;

Inventor:

Ngoc-Tam Vu, Ludwigsburg, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 1/04 (2006.01); F04B 49/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A radial piston pump has a pump housing () and at least one pump unit () with a pump piston () and a cylinder () wherein the pump piston () can be mounted such that it can be moved backwards and forth, wherein the pump unit () can be driven by means of a camshaft () mounted in the pump housing (); and a roller plunger () is arranged between the camshaft () and the pump unit (), consisting of a plunger () and a roller (), wherein the plunger has a guide area () which is used to guide it a first slot-shaped guide groove () of the cylinder insert (). The roller plunger () is thus reliably prevented from rotating inside the cylinder insert (). The radial piston pumps are particularly suited for high rotational speeds occurring in high-pressure fuel pumps.


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