Permeable mesh current collector for DC machines
US4266154A · kind A · utility
15Cited by
8References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1979 |
| Grant date | May 5, 1981 |
| Priority date | — |
| Expiry date | Apr 19, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R39/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current collector for an electrical machine employs a rotor collector ring encircled by a stator collector ring to which a compliant brush fabricated of an electrically-conductive, liquid metal-permeable material is attached. Liquid metal saturates said liquid metal-permeable material and forms a thin liquid metal film which makes sliding contact with the rotor collector ring, completing contact between the rotor and stator collector rings through the compliant brush. Adequate liquid metal is maintained in the collector by pumping means supplying liquid metal through the stator collector ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.