Active turbine or compressor tip clearance control
US9598974B2 · kind B2 · utility
11Cited by
28References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | May 14, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine includes an annular plenum defined with an outer skin and a perforated inner skin for receiving selective air flow to impinge a support case which supports shrouds of the rotor assemblies of the engine therein for active tip clearance control of the rotor assemblies. In one embodiment a bobbin-type transfer tube for supplying cooling air into the plenum, is provided between an outer case of the engine an the plenum such that the thermally induced relative movement of the outer case and the plenum is permitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.