Patent · US Expired

Method for emptying the pressure medium from a hydraulic unit of a hydraulic brake system of motor vehicles

US6554111B2 · kind B2 · utility

1Cited by

9References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ernst-Dieter Schaefer · Neckartenzlingen, DE
Hans-Heinz Kauschke · Heilbronn, DE
Timo Zundel · Pforzheim, DE

Key dates

Filing date	Aug 17, 2001
Grant date	Apr 29, 2003
Priority date	—
Expiry date	Aug 17, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T17/222
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method of employing a hydraulic unit of a brake system containing brake lines extending between a master cylinder and wheel brakes and valves which are actuatable by exertion of magnetic force and which have removable electrical coils and when unactuated assume their blocking position, including the steps of removing coils from the valves; connecting the hydraulic unit, toward the master cylinder or the wheel brakes, to an air source of adequately high pressure; switching the valves to their open position by the exertion of magnetic force of a permanent magnet; positively displacing the pressure medium contained in the hydraulic unit from the air source by air and caught.

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