Wheel end valve for central tire inflation system
US4678017A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1985 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Jul 1, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3631
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A modular tire valve assembly (11) for a central tire inflation system (10) comprising a valve body (212) having only a first (66) and a second (72) fluid connection from the exterior to the interior thereof is provided. The first fluid connection comprises a first port connected to a selectively pressurized and exhausted conduit (52) and the second fluid connection comprises a second port connected to the interior pressurized chamber (74) of an inflatable tire (12). The assembly includes first valve means (220) responsive to pressurization and exhausting of said selectively pressurized and exhausted conduit to establish or block, respectively, fluid communication between said first and second ports and second valve means (280) responsive to pressurization in said interior tire chamber to maintain said first valve means in the closed position thereof if said interior tire chamber is pressurized below a predetermined reference pressure. The diaphragm valve means (220 and 280, respectively) are located at the interfaces of the first (202) and second (204) modules and of the second (204 ) and third (206) modules, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.