System for controlling stages of variable-pitch stator vanes in a turbomachine
US7273346B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2006 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | May 15, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/58
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for controlling two stages of variable-pitch stator vanes of a turbomachine, the system comprising a drive element for turning the control ring of one of the stages via a leader member pivotally mounted on the casing, a synchronization bar for transmitting the turning movement of the ring driven by the drive element to the control ring of the other stage via a follower member pivotally mounted on the casing, and an additional pivot member interposed between the follower member and the follower ring, said additional pivot member being pivotally mounted on the follower member and being connected to the casing by a wheel sliding in a slot secured to the casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.