Gas turbine engine rotor casing treatment
US10107307B2 · kind B2 · utility
4Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2015 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jan 28, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An annular casing for a rotor of a gas turbine engine includes a casing treatment having at least one groove defined in the annular casing wall with an open end defined in an inner surface of the annular casing wall, and a perforated sheet overlapping the open end of the at least one groove. The perforated sheet includes a plurality of apertures therethrough in fluid communication with the at least one groove. A method of reducing flow losses through a flow path having a rotor with a plurality of rotating blades extending therethrough is also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.