Regulator valve for hydraulic anti-skid apparatus
US4492414A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 27, 1983 |
| Grant date | Jan 8, 1985 |
| Priority date | — |
| Expiry date | May 27, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/4225
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A regulator valve for a hydraulic anti-skid apparatus, in which a first valve member in the form of a piston is reciprocable within a housing for the regulator valve and subdivides the interior of the housing into first and second chambers arranged to be respectively applied with a hydraulic power pressure from a fluid pump and a master cylinder pressure from a master cylinder, the first valve member being formed at its one end with a valve part exposed within the first chamber, and in which a second annular valve member is arranged in the first chamber coaxially with the first valve member and is formed at its one end with a first small diameter valve part cooperating with the valve part of the first valve member to form a first annular throttle for throttling the fluid flow from the pump to a fluid reservoir through the first chamber and at its other end with a second large diameter valve part cooperating with the inner end wall of the first chamber to form a second annular throttle for throttling the fluid flow after the first annular throttle is closed, the second valve member being resiliently loaded by a spring toward the inner end wall of the first chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.