Air conditioner
US8499580B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2012 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Jul 19, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F7/007
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal fan mounted in an air conditioner has the following relationship: outer diameter of a side plate of the centrifugal fan>outer diameter of the blade rear-edge part on side-plate side>diameter of the blade rear-edge part on main plate side>outer diameter of the main plate. In the centrifugal fan, the blade rear-edge part is positioned inside from a straight line connecting the connection point between the blade rear-edge part and the main plate, to the connection point between the blade rear-edge part and the side plate, as viewed from the rotation axis. The blade rear-edge part has a shape such that the distance from the rotation axis becomes larger from the main plate toward the side plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.