Patent · US Active

Brake booster for a motor vehicle

US10543825B2 · kind B2 · utility

4Cited by

2References

18Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Deberling · Erdmannhausen, DE
Andreas Ohm · Kupferzell, DE
Markus Baur · Deggenhausertal, DE
Willi Nagel · Biberach an der Riß, DE

Key dates

Filing date	Jul 18, 2016
Grant date	Jan 28, 2020
Priority date	—
Expiry date	Jul 18, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2025/249
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A brake booster for a main brake cylinder of a motor vehicle includes a drive motor connected or connectable to a pressure piston for the main brake cylinder via a gear unit, where the gear unit includes a rotatable spindle nut, including a female thread and an axially displaceable, but rotatably fixed, spindle rod that includes a male thread, the male and female threads engaging into each other in order to convert a rotary motion of the drive motor into a translational motion of the spindle rod for actuating the pressure piston. The spindle nut is formed as two pieces and includes an inner part including the female thread and an outer part including an outer toothing, the inner and outer parts being made of different materials.

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