Patent · US Active

Drive device, hydraulic pump, motor vehicle

US11283324B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Edgar Kurz · Haigern, DE
Juergen Haecker · Neu-Anspach, DE
Massimiliano Ambrosi · Erbach, DE
Michael Eisenlauer · Marbach am Neckar, DE
Wolfgang Schuller · Cleebronn, DE

Key dates

Filing date	Aug 20, 2019
Grant date	Mar 22, 2022
Priority date	—
Expiry date	Feb 25, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH01R2201/26
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A drive device for a hydraulic pump of a braking system for a motor vehicle includes a housing, a rotor, a rotor shaft mounted in the housing and supporting the rotor, and a commutator arranged in the housing. The commutator includes at least one commutator brush held by a brush holder. The commutator brush cooperates with a commutator ring arranged on the rotor shaft in a non-rotatable manner. The brush holder includes a sealing ring assigned to the commutator which is arranged coaxially to the rotor shaft and interacts with the rotor shaft in a sealing manner.

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