Brush and slip ring apparatus for dynamoelectric machines
US5214335A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1992 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Jul 7, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K13/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brush and slip ring apparatus for an alternating current generator. A brush assembly is secured to a rotor shaft of the generator to rotate therewith. The brush assembly includes two axially spaced brushes that are pivoted to a brush support that is secured to the shaft. When the shaft is rotated, the brushes move outwardly away from the shaft due to centrifugal force. The brushes respectively engage two axially spaced fixed slip rings that surround the brush assembly. The brushes are maintained engaged with the slip rings due to centrifugal forces developed by the pivotally mounted brushes. The brushes are connected to a field coil of the rotor of the generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.