Method for controlling the clearance at the tips of blades of a turbine rotor
US9476690B2 · kind B2 · utility
19Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2012 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Sep 3, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/303
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method controlling a clearance between tips of blades of a turbine rotor of a gas turbine aircraft engine and a ring-shaped turbine shroud of a housing surrounding the blades, the method including: controlling flow and/or temperature of air directed toward the housing according to an estimate of the clearance, the estimate of the clearance is determined upon start-up of the aircraft engine, according to a temperature measured by a temperature sensor including a sensitive element positioned in a free space of the aircraft engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.