Control device of variable pitch vanes in a turbomachine
US8177490B2 · kind B2 · utility
7Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2009 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Aug 20, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/79
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control device of variable pitch vanes in a turbomachine is disclosed. The control device includes a ring surrounding a casing of the turbomachine and connected by links to the variable pitch vanes, and a jack connected to the ring in order to displace it in rotation around the casing. The jack is mounted pivoting on the casing and its piston rod is connected to the ring by a connecting rod. The piston and connecting rods are articulated on an axis which is connected to the casing by a guiding device maintaining it at a substantially constant distance from the casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.