High pressure fitting for hydrogen applications
US8454058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2010 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Mar 10, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L19/0286
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
High pressure hydrogen fittings and methods of sealing a pipe to a valve body. In one embodiment, the high pressure hydrogen fitting includes a pipe having flange near one end; a nut surrounding the pipe on a low pressure side of the flange, the nut having threads mating with threads on a valve body; a lip seal surrounding the pipe on a high pressure side of the flange, the flange supporting the lip seal, the lip seal pointing toward the valve body, the lip seal having a cylindrical sealing surface, the cylindrical seal surface engaging the valve body; wherein when the pipe containing hydrogen is connected to a valve body, a seal is maintained at a pressure of up to about 87.5 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.