Variable-vane assembly having unison ring guided radially by rollers and fixed members, and restrained axially by one or more fixed axial stops
US8668443B2 · kind B2 · utility
12Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2010 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Jan 11, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/56
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable-vane assembly for a variable nozzle turbine comprises a nozzle ring supporting a plurality of vanes affixed to vane arms that are engaged in recesses in the inner edge of a unison ring. The unison ring is rotatable about the axis of the nozzle ring so as to pivot the vane arms, thereby pivoting the vanes in unison. The unison ring is radially restrained by a combination of radial guide rollers and fixed axial-radial guide pins secured to the nozzle ring, and is axially restrained by one or more axial stops affixed to the nozzle ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.