Electric water pump
US11353042B1 · kind B1 · utility
0Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Dec 15, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/628
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Provided is an electric water pump in which a portion of a fluid discharged from the vicinity of an outer peripheral edge of an impeller flows between the impeller and a lower casing, flows between a rotor and the lower casing, flows between a shaft and the rotor along a channel formed inside the rotor, and then flows to an inlet side of the impeller such that the fluid circulates outside and inside the rotor, and thus, foreign matters contained in the fluid do not accumulate in an accommodation space between the rotor and the lower casing, and thus, efficiency and durability of a motor can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.