Motor

Abstract

A motor includes rotation means having a first member arranged as a rotatable unitary block with an outer circumference side rotor and a second member arranged as a rotatable unitary block with an inner circumference side rotor. The first member and the second member forms a pressure chamber inside the inner circumference side rotor. By supplying a work fluid into the pressure chamber, it is possible to change the relative phase between the inner circumference side rotor and the outer circumference side rotor.

Description

technical field

[0001] The present invention relates to electric motors.

[0002] This application takes Japanese Patent Application Nos. 2006-060064, 2006-060065, 2006-060066, and 2006-060067 as basic applications, and incorporates the contents thereof. Background technique

[0003] Conventionally, a motor is known that includes, for example, first and second rotors arranged concentrically around a rotation axis of the motor, and controls the first and second rotors according to the rotational speed of the motor or the speed of the rotating magnetic field generated by the stator. The relative position in the circumferential direction of the second rotor is a phase difference (for example, refer to Patent Document 1).

[0004] In this motor, for example, when the phase difference between the first and second rotors is controlled according to the rotational speed of the motor, the circumferential directions of the first and second rotors are changed through a member that is ...

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