Inlet guide vane drive system with spring preload on mechanical linkage
US8534990B2 · kind B2 · utility
2Cited by
19References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2009 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | May 11, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D17/26
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable vane system includes a plurality of vanes each being pivotal about an axis. A mechanical linkage drives the plurality of vanes to rotate about the axis. The mechanical linkage includes a ring gear to rotate, and in turn drive the plurality of vanes. There is at least one rod to drive the ring gear to rotate. The rod is driven by a hydraulic servo motor. A spring bias force is provided in the mechanical linkage to resist either translational or rotational oscillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.