Features to properly orient inlet guide vanes
US8033785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2008 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | May 26, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/79
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Several physical features on an inlet guide vane (IGV) ensure proper orientation of the IGV within a compressor during assembly. A gear with several teeth removed results in a flat surface on the gear which inhibits the gear from rotating on the rack of the compressor inlet casing. An orientation pin is located in the internal bore of the gear. The cylindrical IGV spindle has a portion formed as a flat surface and the orientation pin engages this flat surface. These features are applicable to both a one-piece IGV where the jackshaft is integrated with the IGV stem and a two-piece IGV in which the jackshaft is separate from the IGV stem. A feature applicable to a two-piece IGV is a shaped boss on the IGV stem that allows the jackshaft to be located on the IGV stem in only one orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.