Hydrogen valve with pressure equalization
US7219695B2 · kind B2 · utility
3Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Jul 20, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86895
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shut-off valve that has particular application for opening and closing a compressed hydrogen storage tank. In one embodiment, the valve includes two valve sealing members where one side of one valve sealing member is on the high pressure side of the valve and an opposing side of the other valve sealing member is on the high pressure side of the valve. Therefore, the pressure applied to the two valve sealing members offset each other so that less force is required to open the valve against the high pressure. In another embodiment, one of the sealing members is replaced with a bellows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.