Latching valve
US8590571B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2010 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Sep 25, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86686
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A latching valve system includes a housing, a supply port defined in the housing, a delivery port defined in the housing, an exhaust port defined in the housing, an apply port defined in the housing, and a release port defined in the housing. The apply port is sealingly fluidly isolated from the supply port, the delivery port, and the exhaust port. The release port is sealingly fluidly isolated from the supply port, the delivery port, and the exhaust port. An apply valve supplies an apply pilot pressure to the apply port as a function of a state of the apply valve. A release valve supplies a release pilot pressure to the release port as a function of a state of the release valve. A bore, defined in the housing, fluidly communicates with the supply port, the delivery port, the exhaust port, the apply port, and the release port. A shuttle, sealingly and movably secured in the bore, is set to one of an apply position and a release position as a function of the respective apply and release pilot pressures at the apply and release ports. The delivery port fluidly communicates with the supply port while the shuttle is in the apply position. The delivery port fluidly communicates with the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.