Micro hydraulic suspension mechanical pump
US10495093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Feb 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2205/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A micro-hydraulic suspension mechanical pump includes a volute, an upper cover, an impeller, a brushless motor, a waterproof sleeve and water lubrication spiral groove thrust bearings, each having stationary and rotating rings. A water inlet and a water outlet channel are provided on the volute, and a middle water inlet hole is formed on the upper cover. The water lubrication spiral groove thrust bearings are provided above and below a magnetic steel rotor. During operation of the micro-hydraulic suspension mechanical pump, a liquid film is formed between the stationary ring and the rotating ring to enable the magnetic steel rotor to be suspended, and a liquid film is formed between the outer wall of the rotor sleeve and the inner wall of the waterproof sleeve. Due to suspension of the rotor, wear caused contact is avoided, and service life of the micromechanical pump is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.