Impeller
US10641276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2015 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Sep 4, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/603
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The purpose of the present invention is to improve the mechanical strength of a boss in correspondence with the direction in which the principal stress is generated in an impeller formed of fiber-reinforced resin. A hub 11 is provided with a first region α arranged on the back surface 11b side, and a second region β arranged on the front surface 11a side. In the first region α the frequency with which the reinforcement fibers F dispersed at the periphery of a boss hole 12 are oriented inclined with respect to the radial direction of the hub 11 is high, and in the second region the frequency with which the reinforcement fibers dispersed at the periphery of the boss hole are oriented along the rotational axis line is high.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.