Multipurpose transfer pump free of secondary water filling
US11499567B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2020 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Oct 25, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/086
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The application discloses a multipurpose transfer pump free of secondary water filling, which comprises a cover plate, a water filling plug, a pump body, an impeller, a pump body flange and a motor, the pump body flange is provided at an end portion of the motor, the pump body is provided on a front surface of the pump body flange, a volute chamber corresponding to the impeller is provided in a back surface of the pump body in an inwards recessed manner. In this way, the multipurpose transfer pump free of secondary water filling disclosed by the application can achieve a self-priming effect without filling water into the pump body when the motor works for a second time, thus improving the impeller lubricating effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.