Systems and methods for controlling blade tip clearances
US11674407B2 · kind B2 · utility
1Cited by
4References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2022 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Mar 7, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/44
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for controlling blade tip clearances in a gas turbine engine may comprise an active clearance control system and a controller in operable communication with the active clearance control system. The controller may be configured to identify a cruise condition, reduce a thrust limit of the gas turbine engine to a de-rated maximum climb thrust, determine a first target tip clearance based on the de-rated maximum climb thrust, and send a command signal correlating to the first target tip clearance to the active clearance control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.