Brake slip-controlled hydraulic brake system, especially for use with automotive vehicles
US5152589A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1991 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Apr 1, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S303/90
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An anti-locking, hydraulic brake system is described comprising a master cylinder (4), a pressure fluid collector, at least one wheel brake (5) which, through a master pressure conduit (7), is in communication with the master cylinder (4) and, through a return conduit (12), is in communication with an auxiliary pressure pump (8), an electromagnetically actuated outlet valve (13) in the return conduit (12), and a hydraulically controlled inlet valve (6) in the master pressure conduit (7). The pump is connected to the wheel brake by an auxiliary pressure conduit having a throttle restriction therein. A control conduit branching from the auxiliary pressure conduit upstream from the throttle restriction operates the inlet valve. A diaphragm valve (3) allows either unrestricted or restricted communication of the master cylinder with the master cylinder pressure conduit, the diaphragm valve hydraulically re-switchable by a differential pressure exterted through a first control conduit (1) and a second control conduit (2) provided between the inlet valve (6) in the master pressure conduit (7) and the master cylinder (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.