Patent · US Active

Piston pump assembly for a hydraulic power vehicle braking system

US10941764B2 · kind B2 · utility

2Cited by

5References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Ohm · Kupferzell, DE
Claus Oehler · Karlsruhe, DE

Key dates

Filing date	Jul 10, 2018
Grant date	Mar 9, 2021
Priority date	—
Expiry date	Jul 10, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2025/2087
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 set, a helical gear, and a piston which is displaceable in a cylinder. To prevent the piston from rotating in the cylinder, cylinder pins are situated in grooves at an inner side of the cylinder and engage with the recesses in a flange of the piston. Due to reshaping, the grooves are closed at one end, so that the cylinder pins are axially secured.

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