1057results about "Dynamo-electric gears" patented technology

A gas-sparing vehicle is achieved by a control system for a hybrid vehicle equipped at least with: a hybrid engine which includes at least a first rotary electric unit for deciding the rpm of the engine and a second rotary electric unit for deciding the driving force of the vehicle and which has power converting means connected to the output shaft of the engine; and electricity storing means. In one embodiment, a hybrid controller 16 controls the drive of a first rotary electric unit 2000 according to a startup torque command value which is decided based on the rpm of an engine at the time of engine startup and which decreases as the rpm increases; it also determines that the complete explosion in an engine 1 has occurred when the startup torque command value falls below a predetermined complete explosion judgment value.

Electric rotary current machine that includes a casing and a stator fitted within the casing. The stator has at least one stator winding. At least two mechanically separate rotors are rotatably mountable within the casing and have a same axis of rotation. In this way, each rotor has electromagnetic interaction with the stator when the stator is electromagnetically active. The rotor speeds are the same or different. A motor control is arranged to control a supply to at least one of said at least one stator winding by superposition of at least two rotary field components, one for each rotor.

The invention provides a speed changing magnetic pump, which comprises a pump body, a speed changing magnetic transmission device installed in a casing cavity and a driving motor. The speed changing magnetic transmission device comprises an inner magnetic rotor, an outer magnetic rotor, an isolation sleeve and a magnetic field adjusting ring. The inner magnetic rotor comprises an inner magnetic rotor magnet ring and an inner magnetic rotor magnet core, the outer magnetic rotor comprises an outer magnetic rotor magnet core and an outer magnetic rotor magnet ring which forms an annular cavity with the inner magnetic rotor magnet ring, and the isolation sleeve fixedly connected with a pump body is arranged in the annular cavity. The magnetic field adjusting ring fixedly installed on the isolation sleeve is an annular body formed by connecting a plurality of magnet core blocks and a plurality of epoxy blocks at intervals and used for adjusting magnetic fields of the inner magnetic rotor and the outer magnetic rotor to enable the rotating speed of an output rotating shaft connected to an impeller in a pump body to be different from the rotating speed of an input rotating shaft connected to the driving motor.

The invention concerns a starter/generator for an internal combustion engine (1), especially that of a motor vehicle, with an electric rotary-field machine (4), which exercises the starter and generator function; and at least one invertor (17) for generating the voltages and/or currents of variable frequency, amplitude and/or phase required for the magnetic fields of the electric machine (4); wherein the electric machine (4) starts the internal combustion engine (1) by merging in from standstill.

The drivetrain includes a differential mechanism having four or more input/output elements and having two degrees of freedom. The input In from an engine, the output Out to a drive shaft, and two motor-generators MGi and MGo are assigned to the elements, and one of the elements other than the element to which the output assigned is provided with brakes B. By braking the element other than the output with the brakes, a large reduction ratio can be achieved, so startability can be improved without enlarging the capacities of the motor-generators.

A dynamoelectric device that is highly adaptable to a broad range of applications while providing robust output and energy conversion. The magnetic pole faces of the rotor lie in an ellipsoid. With or without a rotor shaft, the device allows options of either physical connection or contact-less, magnetic coupling. Surrounding the rotor is a brush-less stator having a bobbin-type, axial-centered coil conductor that provides a total capture of magnetic flux emanating from a rotor having an entire surface area of uniform flux density. Devices without a rotor shaft, and those having an air gap filled with ferrofluid, provide a two part generator with remarkable efficiency that is easily waterproofed and mechanically stable.

A power unit which makes it possible to attain the reduction of the size and manufacturing costs thereof, and improve turnability. A power unit drives left and right rear wheels. A first rotating machine and a second rotating machine are configured to be capable of inputting and outputting energy. A first and a second planetary gear units are disposed between the first and second rotating machines and the left and right rear wheels, respectively, for transmitting energy between the first rotating machine and the left and right rear wheels and between the second rotating machine and the same. The first rotating machine, the left rear wheel, the right rear wheel, and the second rotating machine are in a collinear relationship in rotational speed, and are in a line in this order in a collinear chart representing the collinear relationship.

An electromagnetic couple stepless speed change drive of cars in which the collector and stator are connected with the AC-DC converter and DC-AC conversion inverter in a power electronic controller separately. The input or output shaft is connected with the rotor via the collector, the rotor is set in the cup rotor internal cavity and matched to the cup rotor, one end of which is connected with the output or input shaft, the stator is fixed on the base and matched to the cup rotor. The system combines the cascade electric drive and electromagnetic slippage coupled mechanical drive plus un-contacted rotary transmission to form a power branch collection matched with speed adjustment combining conversion with magnetic adjustment.

An electric rotating machine includes a stator having a stator core provided with a teeth unit and a coil wound around each tooth in the teeth unit in a concentrated fashion and a rotor rotatably supported with air gap against the teeth unit of the stator, the rotor having a rotor core and a plurality of permanent magnets held by the rotor core, wherein the permanent magnet is a rare earth magnet made of rare earth magnetic particles bound with SiO₂. Also disclosed is an automobile that includes the electric rotating machine in which the permanent magnet in the rotor is a rare earth magnet made of rare earth magnetic particles bound with SiO₂, and the stator in the electric rotating machine has a stator core provided with a teeth unit and a coil wound around each tooth in the teeth unit in a concentrated fashion.

A vehicle drive device includes a motor generator (MG2), a power control unit controlling the motor generator (MG2), and a case housing the motor generator (MG2) and the power control unit. The power control unit includes a first inverter driving the motor generator (MG2) and a voltage converter boosting a power supply voltage to apply the voltage to the first inverter. A reactor L1 which is a component of the voltage converter is disposed such that at least a portion of a core comes into contact with the case for heat exchange. Consequently, the heat is dissipated to the case having a large heat capacity for integral housing, to thereby allow the heat dissipation performance of the reactor (L1) arranged in the limited space to be ensured.

Embodiments of the present invention relate to magnetic gears comprising first and second moveable members arranged to interact in a magnetically geared manner via a first electrical winding arrangement arranged to generate, at least in part, a first magnetic flux having a first number of pole-pairs, and one or more pole-pieces arranged to modulate the first magnetic flux to interact with a second magnetic flux having a second number of pole-pairs, wherein the first number of pole-pairs is less than the second number of pole-pairs.

An apparatus for transferring torque magnetically with a primary rotary member and a secondary rotary member. The primary rotary member has permanent magnets mounted circumferentially on a cylinder, the secondary rotary member having a cylindrical geometry with electroconductive material arranged on its outer periphery and parallel to the axes of the rotary members. The secondary rotary member also having magnetically permeable material. The secondary rotary member is placed partially or totally inside the primary rotating member. The secondary rotary member's axial position relative to the primary rotating member can be varied by a suitable mechanical structure. This causes the two rotary members to axially overlap one another more or less as desired. Rotation of the primary rotary member causes rotation of the secondary rotary member, since magnetic flux lines emanating from the permanent magnets mounted on the primary rotating member, cut through all, or part of, the electroconductive material placed on the periphery of the secondary rotary member. This can vary the torque transmitted between the two rotary members, thereby enabling the varying of the rotational speed of the secondary rotary member relative to the primary rotary member.

An electrical generator includes a fluid-flow driven impeller including at least one impact arm; and at least one cantilevered beam disposed such that the impact arm strikes the cantilevered beam as the impeller rotates. The cantilevered beam at least partially includes a piezoelectric film.

The invention provides a magnetic field modulating type concentric magnetic gear transmission device in a Halbach magnet structure, which comprises a shell, an outer rotor and an inner rotor, whereinthe outer rotor and the inner rotor are installed in an inner cavity of the shell and are in a cantilever type; the inner rotor comprises an inner rotor iron core and a permanent magnet, which are installed on an output shaft of the inner rotor; the outer rotor comprises an outer rotor iron core and a permanent magnet, which are installed on an output shaft of the outer rotor; a magnetic modulation ring is arranged between the permanent magnet of the inner rotor and the permanent magnet of the outer rotor; and the magnetic modulation ring comprises an iron core block and is fixed on an end plate of the shell. The magnetic gear transmission device comprises two layers of air gaps, wherein an inner-layer air gap is formed between the inner rotor and the magnetic modulation ring, and an outer-layer air gap is formed between the outer rotor and the magnetic modulation ring. The magnet structure uses a Halbach array to replace the conventional radial structure, thereby improving the magnetic density distribution of the air gaps of the magnetic gear transmission device. Because the magnetic density of the air gaps approaches to sinusoidal distribution, the detent torque of the magnetic gear transmission device in the structure is greatly reduced, thereby decreasing the vibration and noise of the magnetic gear transmission device and improving the running efficiency.

The present invention provides a magnetic field modulated magnetic gear, including a casing, an outer rotor and an inner rotor mounted in the casing chamber, the inner rotor is composed of an inner rotor core, 2N1 permanent magnets, and the polarity of the adjacent permanent magnets are different, the inner rotor is mounted on the output shaft of the inner rotor; the outer rotor is composed of a cup type sleeve, an outer rotor core, N2 permanent magnets, and the polarity of all N2 permanent magnets are identical, the cup type outer rotor is mounted on the output shaft of the outer rotor; the magnetic field regulating ring is composed of N1+N2 core blocks and N1+N2 epoxy blocks, the magnetic field regulating ring is fixed on the end plate of the casing; the magnetic gear has two layers air gap, the inner air gap is between the inner rotor and the magnetic field regulating ring, the outer air gap is between the outer rotor and the magnetic field regulating ring. The invention has advantages of high torque transmitted per volume; and the outer rotor adopts a staggered distribution structure of the permanent magnets and the stator core, saving quantity of the permanent magnets, improving the credibility, simplifying the structure, reducing the cost.

The invention relates to a speed-adjusting-type permanent-magnet drive system, comprising a conductor rotor (a first rotor), a magnetic rotor (a second rotor) component and a lead screw regulator, wherein the conductor rotor (the first rotor) is arranged on an input shaft; the magnetic rotor (the second rotor) is arranged on an output shaft; the conductor rotor comprises a disk-shaped steel frame and a copper conducting ring; the surface of a steel plate is provided with the copper conducting ring; the opposite surfaces of a permanent-magnet rotor and the conductor rotor are embedded with permanent magnets; the gap of the opposite surfaces of the conductor rotor and the permanent-magnet rotor can adjust an axial air clearance; and the conductor rotor and the permanent-magnet rotor are coupled by the magnetic force. When the conductor rotor rotates, the permanent-magnet rotor also rotates along the same direction with the conductor rotor due to the coupling action of the magnetic force; the conductor rotor (the first rotor) is fixedly connected with the input shaft; the permanent-magnet rotor (the second rotor) is connected with the output shaft by a shaft section; the regulator is arranged on the shaft section; and the air clearance between the disk surfaces of the two rotors can be adjusted by the regulator, thus changing the torque and the rotating speed and achieving the purpose of speed adjustment.

Embodiments provide an electrical machine, comprising: first and second moveable elements arranged to interact in a magnetically geared manner via a magnetic field created, at least in part, by a first electrical winding arrangement associated with the first moveable element; and a second electrical winding arrangement which is arranged to interact magnetically with a fundamental harmonic of a magnetic field created by the first electric winding arrangement associated with the first moveable element.

An electromagnetic, continuously variable transmission power split turbo compound includes a turbo compound turbine driven by exhaust gases from an internal combustion engine, and a power split device comprising a magnetic gear arrangement. The magnetic gear arrangement includes a high speed rotor comprising a first quantity of permanent magnets, a low speed rotor comprising a second quantity of permanent magnets, and a plural pole rotor between the high speed rotor and the low speed rotor. A first rotor of the high speed rotor, the low speed rotor, and the plural pole rotor includes a mechanical input drive adapted to be driven by the turbine. A second rotor of the high speed rotor, the low speed rotor, and the plural pole rotor includes a mechanical output drive. A third rotor of the high speed rotor, the low speed rotor, and the plural pole rotor is unconnected to a mechanical drive and includes a controlling rotor for controlling a ratio of input drive angular velocity to output drive angular velocity.