Variable inlet fan assembly
US4681509A · kind A · utility
2Cited by
9References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1986 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Apr 28, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/914
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable inlet vane assembly for use with force draft and induction draft systems having a fan. The vane assembly comprises a mounting base and a hub supported in spaced relationship by a plurality of supports. The inlet vanes are pivotally supported between the base and the hub and are engaged by an actuating ring. An annular sliding bearing is interposed between the actuating ring and the hub. A plurality of stationary dorsal vanes are mounted downstream and in close relationship to the main vanes to control violent back eddies of air which occur at low vane closures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.