Impeller and rotating machine provided with same
US10309413B2 · kind B2 · utility
1Cited by
1References
3Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 28, 2014 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Oct 1, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/713
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An impeller with a disc that rotates about an axis, and blades a plurality of which are disposed in the circumferential direction of the disc with intervals therebetween. A defined blade angle of the blade has a prescribed gradual increase region and gradual decrease region from the center towards the outside, and at the center of an inflection region of the gradual increase region and of the gradual decrease region, provided is a partial gradual decrease region having a smaller blade angle decrease amount than the blade angle increase amount of the gradual increase region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.