Fan
US8235672B2 · kind B2 · utility
2Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2008 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Dec 11, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/384
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan includes a hub and a plurality of blades formed on the hub with a rake angle. In an axial direction of the hub, no part of a trailing edge of any of the blades is disposed past an air outlet end of the hub at more than a distance approximately equal to 25% of a diameter of the hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.