Variable-pitch vane for stator stage, including a non-circular inner platform
US8721269B2 · kind B2 · utility
3Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Mar 6, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4932
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable-pitch vane for a stator stage includes an active part of the vane either side of which are positioned a radially inner platform and a radially outer platform, where the active part of the vane, which has a surface forming a convex surface, and a surface forming a concave surface, separate the platform into a part positioned on the convex side and a part positioned on the concave side. Seen along the direction of the vane's axis of rotation, the part has an outer outline superimposed on a circle, at the distance of which, and inside which, is at least a part of the outer outline of the part of the platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.