Patent · US Expired

Hydraulic anti-locking brake unit

US5290098A · kind A · utility

24Cited by

4References

9Claims

0Family size

Assignee

Alfred Teves GmbH · DE

Inventors

Jochen Burgdorf · Mühlheim am Main, DE
Hans-Dieter Reinartz · Frankfurt am Main, DE
Helmut Steffes · Hattersheim, DE
Joachim Maas · Griesheim, DE
Dieter Dinkel · Eppstein, DE

Key dates

Filing date	Feb 1, 1993
Grant date	Mar 1, 1994
Priority date	—
Expiry date	Feb 1, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S303/901
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A hydraulic anti-locking brake unit is presented in which the brake line is shut off by an isolating valve 20 during a control action. For the reduction of the pressure, the outlet valve 7 is opened, so that the pump 14 delivers hydraulic fluid out of the wheel brake into the high-pressure accumulator 19. For a renewed pressure build-up, the inlet valve 6 is opened, so that hydraulic fluid flow is directed out of the high pressure accumulator 19 to the wheel brake. In order to be able to utilize a high pressure accumulator having a low receiving capacity, various valving arrangements are disclosed to direct excess flow from the pump either to the master cylinder or a low pressure accumulator.

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