VARIABLE MAGNETIC FLUX ELECTRIC ROTARY MACHINE
First Claim
1. An electric rotary machine comprising:
- a stator having a winding;
a dual rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into a first rotor and a second rotor each having field magnets with different polarities arranged alternately in a rotation direction;
a mechanism for varying an axial position of the second rotor relative to the first rotor continuously; and
a non-magnetic member located between the first rotor and the second rotor.
2 Assignments
0 Petitions
Accused Products
Abstract
An electric rotary machine is disclosed which can adjust relative angles of sub-rotors continuously and regardless of torque direction without generating an attractive force between the field magnets of the sub-rotors. The electric rotary machine includes: a stator having a winding; a dual rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into a first rotor and a second rotor each having field magnets with different polarities arranged alternately in a rotation direction; a mechanism for varying the axial position of the second rotor relative to the first rotor continuously; and a non-magnetic member located between the first rotor and the second rotor.
203 Citations
15 Claims
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1. An electric rotary machine comprising:
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a stator having a winding; a dual rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into a first rotor and a second rotor each having field magnets with different polarities arranged alternately in a rotation direction; a mechanism for varying an axial position of the second rotor relative to the first rotor continuously; and a non-magnetic member located between the first rotor and the second rotor. - View Dependent Claims (4, 8, 9, 10, 11, 12, 13, 14, 15)
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2. An electric rotary machine comprising:
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a stator having a winding; a triple rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into a first rotor, a second rotor and a third rotor each having field magnets with different polarities arranged alternately in a rotation direction; and a mechanism for varying axial positions of the second rotor and the third rotor relative to the first rotor continuously. - View Dependent Claims (5, 6, 7)
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3. An electric rotary machine comprising:
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a stator having a winding; a rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into four or more sub-rotors each having field magnets with different polarities arranged alternately in a rotation direction; and a control mechanism for controlling rotation of each rotor.
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Specification