Method and apparatus for labyrinth seal packing ring
US9074486B2 · kind B2 · utility
1Cited by
25References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2011 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Jan 31, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a seal assembly for a turbomachine that includes at least one arcuate plate, a biasing member, and at least one packing ring segment. The packing ring segment includes at least one barrier that restricts circumferential flow of a fluid along the packing ring segment. In addition, the seal assembly includes a plurality of arcuate teeth disposed intermediate to the packing ring segment and the rotor. The clearances of at least two of the arcuate teeth are different from one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.