Air blower and outdoor unit
US9874227B2 · kind B2 · utility
0Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2013 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Feb 28, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/73
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air blower includes a casing having an air inlet portion and an air outlet portion, a fan, and a fan guard. The fan includes a boss portion and a plurality of blades. The fan guard includes a guide portion having a tubular outer shape, which protrudes toward the fan. A center in a distal end shape, which is defined by a contour line of a distal end portion of the guide portion, matches with a rotation axis of the boss portion. A center in a root shape, which is defined by a contour line of a root portion of the guide portion, is shifted with respect to the rotation axis of the boss portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.