Abstract: This present utility model provides a novel DC dynamo which is characterized by making the magnetic lines of flux pass through an air gap between the rotator and the stator in the same direction, thus the most of armature coils can always receive the electromotive force of the same polarity in the same direction. Therefore, bidirectional energy conversion between the mechanical energy and the electrical energy of the armature coils in series can still proceed in the absence of commutators and induced the armature to generate sufficient electromotive force to conveniently regulate suitable terminal voltages and the ratios of the rotating speed and the moving speed thereof.

Abstract: The invention relates to electric motors, particularly to low-voltage gearless commutator motors, and can be used as motor-wheels in transportation vehicles and in other technologies. The aim of the present invention is to provide an electric motor with increased performance characteristics, relatively simple design, and high reliability.

Abstract: The present invention provides a fluid injection and recovery device capable of spraying a fluid over an object, recovering at least, the sprayed fluid, as well as filtering and recycling the recovered fluid. This fluid injection and recovery device comprises: a main tank capable of containing fluid; a filter unit capable of filtering the fluid contained in the main tank; a fluid sprayer for spraying the fluid filtered with the filter unit over an object; and a recovery unit capable of recovering, into the main tank, the fluid sprayed over the object and the matter removed by the fluid.

Abstract: An electric motor includes a stator which carries permanent magnets, and a rotor which carries electromagnets. A particular arrangement of connecting up the windings of the electromagnets to the distributing collector and the selection of the ratio of stator magnets to rotor electromagnets enable higher torque to be achieved. The main field of application is in motor-wheels of vehicles.

Abstract: An electricity generator is disclosed having electrically conductive, counter-rotating collectors arranged coaxially with a magnetic field extending radially from an axis of rotation. The collectors intersect the radial magnetic field perpendicularly and are electrically connected to each other to conduct current flow in opposite directions to balance the interaction between current flow in the collectors and the magnetic field.

Abstract: An electrical wind generator system using multiple brushes for converting the kinetic energy of the wind into electrical energy. The electrical generator system includes a support frame assembly designed for coupling to a vertical support, a generating assembly coupled to the support frame assembly and designed for converting rotational motion into electrical energy, a pair of blade assemblies designed for converting kinetic energy of wind into rotational energy, each one of the blade assemblies being coupled to the generating assembly.

Abstract: A positive locking device is provided in order to prevent a motor from rotating after power has been removed. The positive locking device has a plate mounted on the motor which engages a disk or hub on the shaft of the motor. In another aspect of the invention, solid state circuitry for switching a permanent magnet motor and providing dynamic braking thereto is provided. The circuitry allows the back EMF generated by the armature coils of a permanent magnet motor to cause a current to flow through the motor when power is removed. This back EMF may be used to help produce smooth engagement of the locking device. In another aspect of the invention, a dynamic braking circuit for a dual armature permanent magnet motor is provided. By applying current to one or the other of two oppositely wound armature coils the motor is made to rotate in either direction. When power is removed from the active armature, this armature is short-circuited through a diode.

Abstract: A flywheel controller for commutating a stator of a flywheel is disclosed wherein the flywheel controller includes a sensing unit to sense the position of a rotor and for creating a rotational signal, a control unit operatively connecting to the sensing unit for creating a command signal, and a commutator operatively connected to the controller for receiving the command signal to commutate the stator, wherein the commutator includes a pulse width modulator for controlling power from the flywheel over a first predetermined power range and a step generator for controlling power from the flywheel over a second predetermined power range.

Abstract: An electromagnetic actuator is disclosed which is especially suitable for active vibration control applications. The actuator may be either of the moving coil or moving magnet type so that a moving element undergoes reciprocal motion in response to an electrical input signal. The invention allows the force of the moving element to be linearly related to the amplitude and direction of the input current with a high degree of efficiency. In one embodiment, the moving element is decoupled from any mechanical load so as to produce reaction forces which may be used to cancel vibrational forces.

Abstract: The electric motor contemplated by this invention includes an armature having two opposed faces mounted on a shaft. The armature is mounted on the shaft intermediate of the ends of the shaft. A pair of commutators are mounted on the shaft adjacent to each of the opposed armature faces. Each of the commutators includes a plurality of commutator bars, each of which has its circumferential width offset relative to the circumferential width of the commutator bars on the other commutator. Alternately or in combinatrion, with the commutator bar offset the brushes in operative engagement with each of the commutators are arranged with their circumferential width offset, relative to the circumferential width of the brushes in operative engagement with the opposite commutator. The electric motor can also be provided with a redundancy capability by a circuit arrangement in which one of the commutators is held as a backup in the event of a failure of the windings of the other commutator.

Abstract: A demodulator for the demodulation of polyphase, in particular triphase, voltages interfering among themselves and constituting a system of polyphase pseudo-sinusoidal voltages modulated in amplitude to a pulsation .epsilon., to obtain a system of polyphase voltages with a pulsation .epsilon.. The demodulator comprises a polyphase rotating machine including three 3-phase armatures connected through a common yoke made up of a low magnetic loss material, and fed by three systems of polyphase pseudo-sinusoidal voltages modulated in amplitude to a pulsation .epsilon.. A rotor freely rotates within the armature and includes three magnetic circuits connected through a common magnetic axle with the flux carrying parts of the rotor being a low loss magnetic material. Three static coils are disposed concentric with the axis of the magnetic rotor axle, and three systems of polyphase voltages of pulsation .epsilon. are collected at the respective terminals of the coils.

Abstract: A constant supply of liquid metal for current collectors in a disk-type acyclic machine is provided by passageways through each stator disk extending from the region adjacent a radially-outer collector to the region adjacent a radially-inner collector. Dynamic pumping of the liquid metal in the region adjacent the outer current collectors is provided by the rotational motion of the rotor disks and by Lorentz expulsion forces acting upon the liquid metal. The openings to said passageways in the region of the outer current collectors are configured to catch a portion of the liquid metal moving with the radially-outer edge of the rotor disks and thereby apply the dynamic pressure of this portion of the liquid metal to move the liquid metal radially-inwardly. Return flow is accommodated by flow paths in the stator separate from those provided for inward flow.

Abstract: A homopolar dynamoelectric machine is provided in which the magnetic fields are segmented circumferentially of the machine. Longitudinal field windings are placed in recesses in a cylindrical stator and energized so as to provide radial magnetic fields in polar regions between the field windings. Stator conductors are placed in slots in the polar regions. The rotor carries longitudinal conductors on its surface positioned to cut the radial magnetic fluxes, and current-collecting means are provided at both ends of the machine to make electrical contact with both ends of the rotor conductors. The current-collecting means are connected to the stator conductors to complete the electrical circuit of the machine.