Suction-based active clearance control system
US10018067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2014 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Sep 12, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/606
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A clearance control apparatus for a gas turbine engine including an annular turbine case having opposed inner and outer surfaces; an annular manifold surrounding a portion of the turbine case, the manifold including: an inlet port in fluid communication with the manifold and the outer surface of the turbine case, and an exit port; and a bypass pipe having an upstream end coupled to the exit port, a downstream end coupled to a low-pressure sink, and a valve disposed between upstream and downstream ends, the valve selectively moveable between a first position which blocks flow between the upstream and downstream ends, and a second position which permits flow between the upstream and downstream ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.