Patent · US Active

Pressure generator for a hydraulic vehicle brake system

US9982662B2 · kind B2 · utility

4Cited by

2References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Weh · Kempten (Allgäu), DE
Marc Micke · Brackenheim, DE
Roman Koch · Blankenbach, DE
Matthias Mayr · Rettenberg, DE

Key dates

Filing date	Jun 26, 2015
Grant date	May 29, 2018
Priority date	—
Expiry date	Jun 1, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B9/02
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pressure generator for a hydraulic vehicle brake system includes a piston-cylinder unit, a piston, a ball screw drive configured to move the piston, an electric hollow-shaft motor that surrounds and is configured to drive the ball screw drive, and a planetary gear set configured to transmit a rotational movement of the hollow-shaft motor to the ball screw drive. The generator also includes a flange part, a sleeve, and an axial needle-roller bearing. The flange part has a tubular collar configured to axially guide the piston in a movable fashion therein. The sleeve has a flange configured as a counterbearing which is attached to an interior of the tubular collar, and is further configured to support the bearing. The bearing is configured to rotatably mount and axially support the ball screw drive.

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