Ferrofluidic, electromagnetic power supply
US6628017B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Aug 6, 2002 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Aug 6, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K35/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ferrofluidic electromagnetic power supply firmly attached to an agitating object, such as the interior of a vehicular tire generates electric current in an electrical coil deposited between and firmly attached to an hermetically sealed housing made of non-magnetic material partially filled with ferrofluid and a permanent magnet axially polarized. The ferrofluid and the permanent magnet form a magnetic circuit extending from the ferrofluid through the coil to the permanent magnet and back to the ferrofluid. Agitation of the power supply will cause dislocation of the magnetized ferrofluid within the sealed housing causing induction in the electrical coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.