Gearless direct drive switched reluctance motor for laundry application
US4998052A · kind A · utility
47Cited by
13References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1989 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Jul 28, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K29/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive system for a laundry machine utilizing a switched reluctance motor of three or more phases and with stator/rotor pole ratios selected from the ratios of 6:4 and 8:6 with the actual number of poles being a multiple of 2 or more times those numbers. A stator/rotor gap of 10-20 mils is maintained in large diameter motors and cooling for the coils and electronic components positioned within the motor is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.