Magnetic transducer with ferrofluid end bearings

Details Magnetic transducer with ferrofluid end bearings Magnetic transducer with ferrofluid end bearings

2007-10-30

2007-10-30

Le, Dang (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S015000, C290S00100C, C322S003000

Reexamination Certificate

active

10846418

ABSTRACT:
An electrical generator includes one or more magnets that move relative to one or more conductors to generate an electrical signal in each conductor. Each magnet has ferrofluid bearings in the vicinity of its opposite ends to provide a low friction interface between the magnet and a support structure. The ferrofluid bearings establish a field expansion medium that directs at least a portion of the magnetic field so that a greater portion of the field intersects the conductors than in the absence of the medium. The magnet aspect ratio is preferably on the order of unity.

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