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:
Nov. 09, 2021

Filed:

Jun. 07, 2018
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Siamend Flo, Schwieberdingen, DE;

Oliver Albrecht, Bietigheim-Bissingen, DE;

Frank Nitsche, Remseck Am Neckar, DE;

Olaf Schoenrock, Schwieberdingen, DE;

Jurij Giesler, Korntal, DE;

Andreas Plisch, Marbach, DE;

Dietmar Uhlenbrock, Stuttgart, DE;

Ekrem Cakir, Oberriexingen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 19/04 (2006.01); F04B 1/0439 (2020.01); F04B 1/0408 (2020.01); F04B 1/0448 (2020.01); F02M 59/44 (2006.01);
U.S. Cl.
CPC ...
F04B 19/04 (2013.01); F04B 1/0408 (2013.01); F04B 1/0439 (2013.01); F04B 1/0448 (2013.01); F02M 59/442 (2013.01);
Abstract

A piston pump, in particular high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston and a conveying chamber defined at least by the pump piston and the pump housing. A seal for sealing the conveying chamber and a separate guide element for guiding the pump piston may be arranged between the pump piston and the pump housing. The seal is designed as a metal sleeve, and may have a radially outwardly projecting web.


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