An integral wheel brake cylinder and pressure regulating valve
US4415209A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1981 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Nov 12, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T11/34
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brake pressure regulating valve inserted inside the pressure chamber of a wheel brake cylinder of a vehicle comprises a differential or stepped piston having its smaller diameter section slidably supported in a bore of a wheel brake cylinder piston and its larger diameter section guided in the bore of a housing for the wheel brake cylinder. The larger diameter section of the stepped piston has an internal bore between an inlet chamber and an outlet chamber. A regulating valve controlling the inlet of the internal bore is provided by a sealing ring resting against a surface of the larger diameter section of the stepped piston adjacent the inlet chamber and an adjacent end of the wheel brake cylinder piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.