Temperature actuated valve and phase separation method
US4451002A · kind A · utility
4Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1983 |
| Grant date | May 29, 1984 |
| Priority date | — |
| Expiry date | Jul 19, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/059
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The temperature actuated valve comprises a thermally more sensitive valve stem than the valve housing. The stem expands at a faster rate and causes vapor entering the valve to be gradually vented through an orifice of gradually increasing area as the temperature of the gas increases. It has application as a cryogenic phase separator valve which allows any cryogen vaporized in a cryogen delivery system to be automatically vented from the valve and to allow for an even flow of liquid to the spray nozzles and onto products of cryogenic freezing tunnels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.