Electric coolant pump
US10001139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2015 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Jun 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric coolant pump includes a housing, a motor received in the housing, an impeller for driving coolant, and a control unit for controlling the motor. The control unit and the impeller are arranged at opposite ends of the motor. The motor includes a sleeve, a stator mounted around the sleeve, and a rotor rotatably received in the sleeve. The impeller is fixed to the rotor. A radial gap is formed between the sleeve and the rotor. The sleeve includes a plurality of ribs extending from an internal surface of the sleeve into the gap. At least a portion of the ribs of the sleeve guide the coolant towards the control unit to absorb heat generated by the control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.