Brake valve
US4405181A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1981 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Apr 24, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S188/01
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake valve useable in conjunction with a vehicle braking system is monitored by an anti-locking device and operable by a brake pedal through a trailing or simulating spring. The brake valve is provided with a control slide valve for regulating a metered feed of the pressure medium conducted from a pressure source to the wheel brake cylinders of the braking system. The pressure medium is furthermore relievable at the wheel brake cylinders by anti-lock valves. The control slide valve cooperates with at least two emergency pistons freely traversible during normal operation of the braking system. Each of these emergency pistons are mechanically operable from the brake pedal in case of failure of the energy supply or of a brake circuit after a valve associated with the respective pistons has been closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.