Brake pressure control valves for split braking systems
US4026607A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1975 |
| Grant date | May 31, 1977 |
| Priority date | — |
| Expiry date | Feb 19, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/1831
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A valve assembly for use in a vehicle braking system comprises two valves having respective inlets for connection to separate wheel brakes. Each valve has a plunger carrying one part of a valve set which co-operates with a stationary part of the valve set to control communication between the inlet and outlet, and a spring urging the plunger in a direction to maintain the valve set open. Each plunger has opposed piston portions of different dimensions subjected to the pressure at the inlet of the associated valve to produce a net force tending to close the valve, and a further portion subjected to the inlet pressure of the other valve to produce an additional force which is removed upon failure of that inlet pressure of the other valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.