US 5,594,289 A · Magnetic rotating apparatus

Abstract

On a rotor which is fixed to a rotatable rotating shaft, a plurality of permanent magnets are disposed along the direction of rotation such that the same magnetic pole type thereof face outward. In the same way, balancers are disposed on the rotor for balancing the rotation of this rotor. Each of the permanent magnets is obliquely arranged with respect to the radial direction line of the rotor. At the outer periphery of the rotor, an electromagnet is disposed facing this rotor, with this electromagnet intermittently energized based on the rotation of the rotor. According to the magnetic rotating apparatus of the present invention, rotational energy can be efficiently obtained from permanent magnets. This is made possible by minimizing as much as possible current supplied to the electromagnets, so that only a required amount of electrical energy is supplied to the electromagnets.

Claims12

Dependent claims

A magnetic rotating apparatus comprising a rotating shaft;

a rotor which is fixed to said rotating shaft and which has disposed thereon a plurality of permanent magnets and balancers for balancing rotation, the permanent magnets being disposed such that one magnetic polarity type is arranged along an outer peripheral surface in the direction of rotation and the other magnetic polarity type arranged along an inner peripheral surface, with each pair of corresponding magnetic poles of one and the other polarities obliquely arranged with respect to a radial line;
an electromagnet, which is disposed facing this rotor, for developing a magnetic field which produces the other magnetic polarity type on the facing surface and energizing means for intermittently energizing said electromagnet means from where the leading permanent magnet, based on the rotation of said rotor, passes the facing surface of the electromagnet in the direction of rotation.

A magnetic rotating apparatus comprising:

a rotating shaft;
a first rotor which is fixed to said rotating shaft and which has disposed thereon permanent magnet means and means for balancing rotation, the permanent magnet means being disposed such that a plurality of magnetic poles of the second polarity type is arranged along an outer peripheral surface in the direction of rotation, and a plurality of magnetic poles of first polarity arranged along an inner peripheral surface, with each pair of corresponding magnetic poles of the one and the other polarities obliquely arranged with respect to a radial line;
a second rotor which rotates along with the first rotor and is fixed to said rotating shaft, having disposed thereon a plurality of permanent magnets and balancers for balancing rotation, the permanent magnets being disposed such that one magnetic polarity type is arranged along an outer peripheral surface in the direction of rotation and the other magnetic polarity type arranged along an inner peripheral surface, with each pair of corresponding magnetic poles of one and the other polarities obliquely arranged with respect to a radial line;
a first and a second electromagnet means, which are magnetically connected and disposed facing the first and second rotors, respectively, for developing a magnetic field which faces the magnetic field produced by said first and second rotors;
and
detecting means for detecting rotating position of said rotors to allow said electromagnet means to be energized.

3 more elements

Dependencies are inferred from the claim text.

Magnetic rotating apparatus

Life of this patent

Magnetic rotating apparatus

Life of this patent

Abstract

Claims12