Coupling for electric motors
US4578608A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1985 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | Mar 22, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A coupling for electric motors, with each motor comprising a rotor (62, 63) and a stator (60, 61) mounted in a tubular shell (4, 5). The coupling includes the ends (8, 8a) of the tubular shells to be assembled, shaped for end-to-end inter-fitting in a manner which determines a relative angular position of the shells, the shape being identical on both shells; the coupling further including an internal coupling module (12) constituting a subassembly which is independent of the motors per se. The module comprises a coupling sleeve (15) for coupling the rotor shafts (16, 17), electrical connection means (29) for interconnecting the stators (60, 61), and support means acting both as radial bearings (19, 20) and as axial stops (21, 22) for the motors. The end of at least one of the rotor shafts to be coupled in rotation has a coupling section defined by the surface inside a closed, non-circular line having polar co-ordinates such that the polar radius is periodic over an angle equal to 2/n, where n is a positive integer greater than one, and the sleeve has at least one end with a corresponding bore. The ends of the sleeve and of the shaft further include respective conjugate inlet shapes…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.