Patent · US Active

Piston pump assembly for a hydraulic power vehicle braking system

US11248600B2 · kind B2 · utility

2Cited by

3References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Weh · Kempten (Allgäu), DE
Matthias Mayr · Rettenberg, DE
Matthias Koehler · Hemsbach, DE

Key dates

Filing date	Jul 19, 2018
Grant date	Feb 15, 2022
Priority date	—
Expiry date	Jul 23, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60Y2400/81
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston pump assembly for a hydraulic power vehicle braking system including an electric motor, a planetary gear, a worm gear, and a piston displaceable in a cylinder. For an anti-rotation protection of the piston in the cylinder, the piston includes a ring rotationally-fixed thereto by a form fit and connected thereto by forming, including semicircular grooves at its outer circumference, in which cylinder pins engage, which are situated fixed axially-parallel in the cylinder.

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