Rub resistant compressor stage
US6234747A · kind A · utility
23Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Nov 15, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/914
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor casing is configured to surround blade tips in a compressor stage. The casing includes stall grooves with adjoining lands defining respective local gaps with the blade tips. At least one of the lands is offset to locally increase a corresponding one of the gaps larger than the nominal gap for the casing to reduce tip rubbing thereat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.