Impeller and rotary machine
US9163642B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2010 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Dec 14, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An impeller of a rotary machine, in which a direction of flow is configured to gradually change from an axial direction to a radial direction as the flow goes from an interior in the radial direction of a fluid flow passage to an exterior in the radial direction of the fluid flow passage, includes: a hub surface defining at least a portion of the fluid flow passage; a blade surface defining at least a portion of the fluid flow passage; and a bulge being disposed so as to bulge toward the interior of the fluid flow passage at a corner where the hub surface, which is located at a rear half on an outlet side of the fluid flow passage, is in contact with the blade surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.