Gas seal assembly for cryogenic liquid turbomachines
US9476314B2 · kind B2 · utility
1Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2013 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Mar 31, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2015/081
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A dry seal apparatus (30) for a machine (10) includes a seal having a stationary portion (40) and a rotating portion (38); a space (44) disposed between the stationary and rotating portions; a biasing member (42) disposed proximate the stationary portion (40) and in contact therewith for applying a force to the stationary portion; and a labyrinth (37) proximate the rotating portion (38) and constructed and arranged for receiving a liquid for being vaporized before entering the space between the stationary and rotating portions of the seal. A related method is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.