Stator vane stage actuated by a rotary actuator ring moved by electric motor means
US7393178B2 · kind B2 · utility
4Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2005 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Jun 23, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable-pitch stator vane stage in which the vanes are moved by a rotary actuator ring driven by an electric motor. The outer actuator ring is connected by cranks to the vanes and is constrained to move in rotation only, centered on the axis of the turbomachine; the drive system includes two coaxial portions, an inner portion secured to the casing and an outer portion including the actuator ring, with an electrical drive unit being arranged between the two portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.