Patent · US Active

Piston assembly for a pressure-generating device of a braking system of a motor vehicle

US10150459B2 · kind B2 · utility

4Cited by

5References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Weh · Kempten (Allgäu), DE
Matthias Mayr · Rettenberg, DE
Juergen Tandler · Rosenheim, DE

Key dates

Filing date	Oct 19, 2015
Grant date	Dec 11, 2018
Priority date	—
Expiry date	Oct 19, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B17/03
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston assembly for a pressure-generating device of a braking system of a motor vehicle, including a piston, which is at least partially insertable into an opening formed in a hydraulic unit of the braking system and is axially displaceable therein, and including a ball screw for axially displacing the piston. The piston is connected to the axially displaceable spindle of the ball screw in such a way that the piston moves along with the axially displaceable spindle of the ball screw, the piston enclosing at least one first portion of the nut in a first, retracted position of the piston and the piston enclosing at most one second portion of the nut in a second, extended position of the piston, and the first portion is larger than the second portion.

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