Cooling towers axial fan in a hollowed disc/ring configuration
US10808717B2 · kind B2 · utility
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19References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cooling tower fan hub having a ring and a disc in which in which hollows and recesses are opened in the ring and/or in the disc in order to decrease fan natural frequencies and avoid excitation by the several kind of loads that affect a fan during operation. The number, size and shape of the hollows can be adjusted to tune the fan natural frequencies around the original value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.