Non-contacting gas compressor seal
US6655693B2 · kind B2 · utility
28Cited by
21References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | May 20, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/38
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A non-contacting gas compressor seal assembly is disclosed with an intermediate buffer chamber. The process gas is corrosive or otherwise hazardous and is contained from entering the atmosphere by pumping the barrier gas toward the process fluid. The inboard seal of the assembly is designed to maintain a sealing relationship in the event of loss of buffer gas pressure by operating as a non-contacting seal on the process fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.