Patent · US Active

Piston pump

US11261853B2 · kind B2 · utility

0Cited by

0References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Siamend Flo · Stuttgart, DE
Oliver Albrecht · Bietigheim-Bissingen, DE
Frank Nitsche · Kornwestheim, DE
Andreas Plisch · Erbach, DE
Dietmar Uhlenbrock · Stuttgart, DE
Olaf Schoenrock · Schwieberdingen, DE
Jurij Giesler · Ditzingen, DE
Ekrem Cakir · Oberriexingen, DE

Key dates

Filing date	Jun 7, 2018
Grant date	Mar 1, 2022
Priority date	—
Expiry date	Jun 7, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B53/16
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston pump, in particular a high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston, and a delivery chamber that is delimited at least by the pump housing and the pump piston. The piston pump further includes a seal configured to seal the delivery chamber and a separate guide element configured to guide the pump piston. The seal and the guide element are arranged between the pump piston and the pump housing. The seal is formed as a plastic ring with a substantially sleeve-shaped base portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.