Turbine blade tip clearance control
US9347334B2 · kind B2 · utility
8Cited by
9References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2010 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jul 10, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An aircraft engine for use in a low-bypass turbofan application has a high pressure turbine having a blade and an engine casing disposed about the blade. A shield is disposed around the casing adjacent to the blade to create an area between the shield and the casing. A gate selectively controls entry of cooling air into the area and may be closed if the engine is maneuvering and may be open if cruising.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.