Negative thermal expansion compressor case for improved tip clearance
US11255214B2 · kind B2 · utility
6Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Apr 22, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor with negative coefficient of thermal expansion case material comprising a rotor having blades with tips, the case including an inner case comprising a negative coefficient of thermal expansion material, and a tip clearance located between the tips and the inner case; wherein the tip clearance is maintained responsive to a flow of air over the negative coefficient of thermal expansion material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.