Centrifugal pump
US10519977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Jul 31, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/624
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal pump is provided, which includes a rotor assembly and a shaft. The rotor assembly includes an injection molded body and a shaft sleeve, the rotor assembly is injection molded taking the shaft sleeve as an injection molding insert, and the impeller injection molded body and the shaft sleeve are fixed by injection molding. The rotor assembly is rotatably supported on the shaft by the shaft sleeve, and the shaft sleeve is processed by injection molding or forging. The shaft sleeve is of a hollow structure, and the shaft sleeve includes a body. A central hole is formed in the body. The shaft sleeve further includes an impeller limiting portion configured to limit a rotating movement and an axial movement of the shaft sleeve with respect to the injection molded body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.