Impeller and rotary machine
US9404506B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2010 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Nov 12, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/286
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An impeller of a rotary machine, in which the direction of flow changes from an axial direction to a radial direction as it goes from the inside in the radial direction of a fluid flow passage to the outside in the radial direction thereof, includes a hub surface constituting at least a portion of the fluid flow passage. The impeller also includes a blade surface constituting at least a portion of the fluid flow passage, and a bulge that bulges toward the inside of the fluid flow passage at a corner where a pressure surface, which configures the blade surface, comes in contact with the hub surface in the vicinity of an inlet of the fluid flow passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.