Elevator reluctance linear motor drive system
US6305501A · kind A · utility
33Cited by
22References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Mar 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive system for an elevator includes a drive machine by means of which the for moving and supporting an elevator car. The primary circuit of a linear motor is permanently fitted to a wall of a building while its secondary circuit is fitted in conjunction with the elevator car and moves with the elevator car. Pressurized air is supplied between the primary and secondary circuits of the reluctance-type linear motor to maintain an air gap between them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.