Patent · US Expired

Master cylinder with quickfill stage

US5647213A · kind A · utility

3Cited by

9References

12Claims

0Family size

Assignee

Lucas Industries public limited company · GB

Inventors

Manfred Kaub · Rhens, DE
Hans Lange · Worms, DE
Peter Schluter · Vogtei, DE

Key dates

Filing date	Jun 23, 1995
Grant date	Jul 15, 1997
Priority date	—
Expiry date	Jun 23, 2015

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T11/228
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A master cylinder (10) for a hydraulic brake system comprises a quickfill stage (28) which in the initial phase of an actuation of the master cylinder rapidly fills an associated brake system with hydraulic fluid upon a relatively short actuation travel. A housing (12) of the master cylinder (10) extends essentially along an axis (A) and comprises at least one pressure chamber (14) formed therein which is open at the actuation end of the master cylinder (10). A quickfill piston and a quickfill chamber of the quickfill stage (28) are essentially formed by a cup shaped component (30) which is guided on the acutation end of the master cylinder housing (12) in a telescopical and pressure chamber sealing manner. This solution can be manufactured economically and requires little installation space.

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