Abstract: The present invention provides an electric motor accomplishing high efficiency and of improved starting characteristics. An electric motor of the first invention comprises a rotor 10 having four radial protrusions 10a provided along an outer periphery of a magnetic disc with equal intervals, and a disc 40 of magnetic circular plate. The rotor 10 and the disc 40 are firmly connected with a rotational shaft 60 as a permanent magnet 20 is interposed therebetween. Around the rotor 10 and the disc 40 are extended twelve bar-shaped electromagnets 30 between the outer peripheries of the rotor 10 and the disc 40. The rotor 10 and the disc 40 are rotatably supported inside the electromagnets 30 and energizing of predetermined electromagnets 30 converges a magnetic flux to the energized electromagnets which was distributed between the respective poles of the permanent magnet 20. As a result, the magnetic flux which locked the rotor 10 in a power off state easily disappears and smooth start is secured.

Abstract: A motive power generating apparatus utilizing magnetic flux from permanent magnets providing higher efficiency and torque is disclosed. An apparatus according to one embodiment of the present invention comprises a pair of disc-shaped rotors 10 and 20, a pair of ring-shaped stators 30 and 40, a rotational shaft 50, a permanent magnet 60, and a current controller 80. Each rotor 10, 20 is a disc-shaped member formed of magnetic material. Each stator 30, 40 further includes twelve electromagnets 32, 42 provided along the outer periphery of each disc-shaped rotor 10, 20 at intervals of thirty degrees. Each electromagnet 32, 42 has an armature 32a, 42a and a winding 32b, 42b. Each rotor 10, 20 contains six sets of protruding poles 10a, 20a disposed around the outer periphery thereof at intervals of sixty degrees. Each rotor 10, 20 is magnetized in opposite polarities by the permanent magnet 60 disposed therebetween.

Abstract: An electric motor is capable of increased output torque by utilizing both electric energy by an electromagnet and a magnetic energy by a permanent magnet. The electric motor includes a wobble rotor made of a magnetic material including at least one permanent magnet arranged annularly in a circumferential direction therein. A plurality of electromagnets are disposed annularly along with the outer periphery of the rotor. Current switching circuitry energizes the electromagnets in a predetermined sequence and timing. The wobble rotor is supported by a supporting mechanism around a center portion thereof in a pivotally movable manner and is capable of closely approaching or contacting an energized electromagnet at the outer periphery thereof and of wobbling movement with a certain incline toward the energized electromagnet according to the predetermined sequence and timing of the energizing of the electromagnets.

Abstract: A power generator includes an electromagnet for generating a rotating magnetic field when being excited by a three-phase alternating current applied thereto, a rotation output shaft rotatably supported on a supporting member in such a manner as to be positioned in the rotating magnetic field, and permanent magnets disposed around the rotation output shaft in such a manner that the polarity thereof is reverse to that of the rotating magnetic field. The permanent magnets are rotated together with the rotation output shaft, and magnetic bodies disposed outside the permanent magnets in such a manner as to be rotated together with the rotation output shaft. A magnetic flux of the permanent magnets passes through the magnetic bodies. Magnetic tooth portions are provided around outer peripheral portions of the magnetic bodies. Each of the magnetic tooth portions has a width being nearly equal to the width of the rotating magnetic field.

Abstract: A motive power generating apparatus using magnetic flux from permanent magnets providing higher efficiency and torque is disclosed. An apparatus of one embodiment according to the present invention comprises a ring-shaped stator (10) formed of magnetic material, a rotor (20) including at least one permanent magnet (22a), and a current control circuit (40). The stator (10) further includes twelve stator poles (12) provided along the inner periphery thereof at intervals of fifteen degrees. Each of the stator poles (12) has a pole piece (12a) and a winding (14). The rotor (20) contains twelve sets of rotor poles (22) disposed around the outer periphery thereof corresponding to the above stator poles (12). Each of the rotor poles (22) has a permanent magnet (22a) and a pole piece (22b) arranged at the outer end portion of the same. An extending portion (22b1) is provided with each of the pole pieces (22b) at one tip end in rotational direction thereof.

Abstract: A electric motor is capable of increased output torque and efficiency in utilizing magnetic energy. The electric motor includes a plurality of electromagnets arranged annularly, each of the electromagnets having a magnetically permeable armature and a winding therearound, and a rotor formed of magnetic material, the rotor being rotatably supported and surrounded by the annularly arranged electromagnets. An output shaft is fixed to the rotor for outputting rotational motion of the rotor. At least one portion of the outer periphery of the rotor is able to approach or contact an energized one of the electromagnets by attracting force thereof. A current control device energizes the electromagnets in a predetermined sequence and timing. At least one electromagnet, among the annularly arranged electromagnets, which is situated at a downstream or forward side of the closest point to the electromagnets on the outer periphery of the rotor relative to the rotational direction thereof, is energized.

Abstract: A motive power generating device comprises a permanent magnet disposed around a rotational output shaft for rotation therewith, the output shaft being mounted on a support member for rotation, a magnetic body disposed in concentric relationship with the permanent magnet for rotation with the rotational output shaft, the magnetic body being subjected to magnetic flux generated by the permanent magnet, a plurality of electromagnets fixedly mounted to the support member in such a manner that they are spaced at predetermined distances around the periphery of the magnetic body, each magnetic circuit of the electromagnets being adapted to be independent of one another, and excitation change-over means for the electromagnets, the excitation change-over means being adapted to sequentially magnetize one of the electromagnets which is positioned forwardly with regard to a rotational direction of the rotational output shaft, so as to impart to the particular electromagnet a magnetic polarity opposite to that of the magn

Abstract: A step motor comprising two sets of annularly arranged electromagnets and which are disposed in left and right frame bodies respectively in bilateral symmetry, a wobble disc of magnetic body arranged between the sets of electromagnets, a supporting shaft which is pivotally coupled to the center of the light surface of the wobble disc and fixedly coupled to a bearing portion at the center of the right frame body, an output shaft which is fixedly coupled to the center of the left surface of the wobble disc by way of a universal joint and rotatably supported by a bearing portion at the center of the left frame body, a crown gear fixedly arranged on the magnetically permeable armatures of the right set of electromagnets and a crown gear fixedly arranged on the right surface of the wobble disc at the outer circumferential portion thereof which confronts the crown gear on the right set of electromagnets and has teeth different in number from those of the crown gear.

Abstract: An electric motor comprises a plurality of electromagnets arranged annularly in parallel, an electric switching circuit connected to each electromagnet, an iron cylinder arranged inside the electromagnets and having peripheral surface to be attracted partially arbitrarily by part of the electromagnets, a main axle positioned at the center of the iron cylinder and coaxially arranged with an axial core of the iron cylinder via bearings, and eccentric axles provided at both ends of the main axle so that the eccentric axles are arranged in accord with the center of the electromagnets to define a power generating axle.