Fan and air conditioner
US7461518B2 · kind B2 · utility
5Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2005 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Jul 20, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F1/0083
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An air conditioner includes a centrifugal fan and a unit casing that houses the centrifugal fan. The centrifugal fan includes an impeller and a scroll casing that houses the impeller. The unit casing has a unit intake port that opens in a direction crossing an opening direction of a scroll intake port. At a circumferential portion of the scroll intake port of the scroll casing, there is formed a bulged portion with an inner surface that is formed evenly in a circumferential direction and an outer surface portion formed away from the unit intake port that bulges out to a side opposite the impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.