Sirocco fan and air conditioner having same
US9964118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2012 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Apr 12, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/73
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A sirocco fan is provided that may include an impeller, in which a plurality of first blades and a plurality of second blades are formed on a main plate, and a scroll housing that covers the impeller. The scroll housing may include air suction holes formed on both of first and second plates and a rounded portion formed to be convex in an opposite direction of the impeller on a scroll that connects both of the first and second plates. An interval from the main plate to the rounded portion in a direction perpendicular to a rotation central axis of the impeller may be the largest. A rapid change in direction of air flowing to the scroll from the impeller may be minimized, and collision of air with the scroll may be lessened, reducing a flow loss and enhancing efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.