Rotor blade with reduced rub loading
US8657570B2 · kind B2 · utility
6Cited by
19References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2009 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Mar 27, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An airfoil for use in a rotor assembly is disclosed, the airfoil having a tip-cutter located on a sidewall near a tip portion, wherein the tip-cutter is capable of removing a portion of an abradable material during a tip rub. In another embodiment, an airfoil has a tip-grinder located on the tip portion, wherein the tip-grinder capable of removing a portion of an abradable material during a tip rub. In another embodiment, an airfoil has a tip-rake that facilitates reducing loading induced to said airfoil during tip rubs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.