Flux-focused shaped permanent magnet, magnetic unit having the magnets, device having the magnetic units and method for asymmetrically focusing flux fields of permanent magnets
OwnerW. Thomas McClellaninventor
Life of this patent
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Abstract
A flux-focused, shaped permanent magnet includes a body of magnetic material having multiple surface contouring to form a reduced flux side with convex surfaces and an increased flux side with concave surfaces. The surfaces develop high and low resistance external flux paths creating focused asymmetric flux fields. A magnetic unit having the shaped permanent magnet and a magnetic flux attracter or two shaped permanent magnets interconnected by two segmented permanent magnets and a kinetic device having a stationary stator ring, a rotor disc rotating within the stator ring and a multiplicity of the magnetic units on the stator ring and the rotor disc, are also provided.
Claims19
A flux-focused, shaped permanent magnet, comprising:
- a body of magnetic material having surface contouring to form a reduced flux side with a convex surface and an increased flux side with a concave surface developing high and low resistance external flux paths for creating focused asymmetric flux fields.
A magnetic unit, comprising:
- a flux-focused, shaped permanent magnet having a body of magnetic material with surface contouring to form a reduced flux side with a convex surface and an increased flux side with a concave surface, said surfaces developing high and low resistance external flux paths creating focused asymmetric flux fields, and said body having two magnet pole end surfaces;
- a magnetic flux attracter formed of highly permeable material, said magnetic flux attracter having two end surfaces;
- and
- one of said end surfaces of said magnetic flux attracter contacting one of said end surfaces of said shaped permanent magnet, causing magnetic field lines to extend between the other of said end surfaces of said magnetic flux attracter and the other of said end surfaces of said shaped permanent magnet.
A method for asymmetrically focusing flux fields of permanent magnets, the method comprising the following steps:
- surface contouring a body of magnetic material to form a reduced flux side with convex surfaces and an increased flux side with concave surfaces;
- and
- developing high and low resistance external flux paths with the surfaces to create focused asymmetric flux fields.
Dependencies are inferred from the claim text.