Ring fan and shroud air guide system
US8475111B2 · kind B2 · utility
12Cited by
10References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2008 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Apr 8, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/441
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ring fan and shroud guide system which includes a rotating fan member with a conical outer ring and a cylindrical shroud member overlapping at least a portion of the outer ring. A plurality of guide vanes are provided in the shroud which minimize the tangential velocity component of the air flow entering the tip-gap region and provide improved air flow through the system. The guide vanes can have a curved configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.