Cross-flow fan and an air-conditioner using it
US6158954A · kind A · utility
18Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Mar 26, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/283
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A number of vanes 12 are disposed in a peripheral direction of a plurality of supporting disks disposed along a rotary shaft 14 at given intervals. Each vane 12 is disposed at an angular interval as determined by a logistic representation. Thereby the intensity and variations of noise levels at around 8N on the low-frequency side, as well as the noise level caused by rotary first-order sounds, can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.