Cross-flow fan
US9447790B2 · kind B2 · utility
5Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2013 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Aug 29, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D17/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cross-flow fan includes a disc-shaped or circular annular support plate, plural blades extending in a lengthwise direction from the support plate, and an auxiliary ring. The auxiliary ring has a ring portion that is positioned on a lengthwise direction intermediate section of the plural blades and is disposed on an outside of outer ends of the plural blades, and plural connection portions that extend from the ring portion as far as spaces between adjacent blades of the plural blades and are joined to the blades in the spaces between adjacent blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.