Enhanced thermal conductivity material in annular gap between electrical motor stator and housing
US8358043B2 · kind B2 · utility
4Cited by
15References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2009 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Apr 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A submersible electric motor has feature to enhance thermal conductivity from the motor interior to the exterior. The motor has a cylindrical housing and a stator rigidly mounted within housing. A rotatable rotor is located within the stator. A gap formed between the stator's outer diameter and the inner wall of the housing is filled with a high thermal conductivity material to improve heat transfer from the motor. The remaining portion of the housing may be filled with a dielectric lubricant that has lesser thermal conductivity than the high thermal conductivity material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.