Dual retention vane arm
US7011494B2 · kind B2 · utility
21Cited by
8References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2004 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Jun 12, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable vane arm is disclosed having dual retention capability to ensure vanes of a gas turbine engine remain connected to the vane arm even under surge loads or when fastener preload, or the entire fastener, is lost. The variable vane arm further provides a surge slot to facilitate rotation of the vane even when the vane is operating under surge or otherwise excessively high pressure conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.