Variable-shape variable-stagger inlet guide vane flap
US7942632B2 · kind B2 · utility
16Cited by
23References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2007 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Mar 16, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable shape inlet guide vane (IGV) system includes a variable-shape IGV flap with a flexible portion that enables the desired spanwise distribution of Cx, alpha, and beta at a fan rotor inlet. An actuation system that rotates a root section of the variable-shape IGV flap to flex the flexible portion such that the twisted shape of the flap can reverse rather symmetrically during actuation from max open to max closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.