Spiraling grooves as a hub treatment for cantilevered stators in compressors
US11136895B2 · kind B2 · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2019 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Apr 1, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/173
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A casing treatment comprising a hub having a surface, the hub being rotatable about an axis within a casing of a gas turbine engine compressor, at least one spiral groove formed in the surface extending axially relative to the axis, a stator blade fixed to the casing, wherein a tip of the stator blade is proximate to the at least one spiral groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.