Sealing device and method for turbomachinery
US7435049B2 · kind B2 · utility
68Cited by
9References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2004 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | May 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compliant seal for use between rotating blades and a static shroud surrounding the rotating blades in a steam or gas turbine is disclosed. The seal includes a tip surface, substantially resistant to wear due to rubbing by the tip of the rotating blades, and an elastic biasing member, comprising a biasing element. The wear-resistant surface is thus biased against the tips of the rotating blades to seal a gas path between the rotating blades and the static shroud.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.