Blower
US6368081B1 · kind B1 · utility
11Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Jun 26, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/5806
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blower with the improved P-Q characteristics is provided. A blower comprising a shaft rotatably supported in a tubular casing, a cup shaped motor yoke 11 fixed to the shaft, and a body portion 15 of an impeller 14 comprising a large number of blades 13 on an outer peripheral portion is fixed to the motor yoke 11, wherein the blower is characterized in that substantially ring-like openings 15b are provided at a portion where the blades 13 of the body portion 15 are mounted and on a circumference around the shaft. Since air flow is facilitated by the openings 15b, the P-Q (pressure—flow rate) characteristics are improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.