Turbo fan and air conditioner with turbo fan
US8668460B2 · kind B2 · utility
6Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2011 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Oct 12, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/70
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbo fan includes a main plate for rotation in a rotational direction about a rotational axis and a plurality of blades arranged at intervals around the rotational axis of the main plate. At least one blade includes: a first blade section having a leading end and a trailing end; a second blade section having a leading end and a trailing end, wherein the first blade section is between the main plate and the second blade section; and a third blade section having a leading end and a trailing end, wherein the third blade section is between the first blade section and the second blade section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.