Pressure relief valve for cryogenic liquid containers
US9879792B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2015 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Aug 10, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2223/0161
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A relief valve for use in coupling to a vessel is disclosed. The valve includes a valve body having an inlet passage connected to a valve inlet, an outlet passage connected to a valve outlet, and an internal chamber. A valve seat is engageable with the inlet passage to close the valve inlet. A poppet is coupled to the valve seat, and a spring in the internal chamber is coupled to the poppet, the spring having a predetermined spring force. A vent passage in the valve body has a first end connected to the internal chamber and a second end connected to the outlet passage to permit release of pressure from the internal chamber through the valve outlet. The vent passage is formed at an oblique angle to both the inlet passage and the outlet passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.