45 results about "Radial field" patented technology

A rotor for an electrical motor may include a plurality of salient radial field rotor poles and a plurality of salient axial field rotor poles. The radial field rotor poles and the axial field rotor poles are respectively oriented on the rotor to receive or convey substantially perpendicular flux fields. Additionally, the radial field rotor poles may include both inner and outer peripheral rotor poles for communicating radial flux fields with separate coaxial stators.

At least one set of two nested magnetic arrays is provided, each nested magnetic array having an outer magnet, a middle magnet, and an inner magnet. The outer magnet has a magnetization pointing in an at least partially axial direction. The middle magnet has a magnetization substantially perpendicular to the magnetization of the outer magnet. The inner magnet has a magnetization directed substantially anti-parallel to the magnetization of the outer magnet. The apparatus also includes at least one electrically conductive coil positioned at least partially between the two nested magnetic arrays. At least one substantially magnetically permeable object is positioned at least partially between the two nested magnetic arrays. A rod is integral with the substantially magnetically permeable object.

At least one set of two magnets is provided, at least one of the magnets having an outer magnet portion, a middle magnet portion, and an inner magnet portion. The outer magnet portion has a magnetization pointing in an at least partially axial direction. The middle magnet portion has a magnetization substantially perpendicular to the magnetization of the outer magnet portion. The inner magnet portion has a magnetization directed substantially anti-parallel to the magnetization of the outer magnet portion. The apparatus also includes at least one electrically conductive coil positioned at least partially between the set of two magnets. At least one substantially magnetically permeable object is positioned at least partially between the set of two magnets. A rod is integral with the substantially magnetically permeable object.

The invention discloses a reciprocal radial field electric machine based on the soft magnetic attraction principle, characterized by a plurality of active elements organized as a bi-dimensional cylindrical machine matrix and fed sequentially by an external power converter in order to derive a motoring or generation effect. The machine is comprised of a fixed stator matrix featuring salient poles and electrical coils, and a mobile rotor matrix featuring salient poles. The machine works on the principle of time integration of the discrete actions performed by its active elements. The bi-dimensional matrix organization of the active elements and the algorithms of their activation in both motoring and generation modes are key features for the functional cohesion of the machine. The design of this machine is based on a unique digital modeling method developed by the inventors, using exclusively the matrix calculus adapted to cylindrical matrices.

A laser-produced plasma extreme ultraviolet source has a buffer gas to slow ions down and thermalize them in a low temperature plasma. The plasma is initially trapped in a symmetrical cusp magnetic field configuration with a low magnetic field barrier to radial motion. Plasma overflows in a full range of radial directions and is conducted by radial field lines to a large area annular array of beam dumps.

A ferromagnetic thin-film based array of directed magnetic field generating structures having a plurality of toroidally shaped layer stacks each with a pair of ferromagnetic material layers separated by an intermediate layer of nonmagnetic material. Electrical connections are made to opposite sides thereof. A serpentine first side electrical conductor is folded back so as to have parallel branches and together zigzag to cross over each stack on one side thereof. A serpentine second side electrical conductor, also folded back so as to have parallel branches, can be further provided with these branches together zigzagging to cross each stack on an opposite side thereof. These first and second side electrical conductors can be electrically joined to form an array electrical conductor.

The invention discloses a truncated conical solid cylinder bearingless switched reluctance motor, which comprises a first stator and a rotor, a second stator and a rotor, a truncated conical solid cylinder; each tooth pole of the first and second stators There are first and second radial excitation windings on the top, these windings are independently controlled, and the axial excitation windings are connected in series on each tooth pole of the first and second stators; there is a conical outer chamfer on the axial inner side of the two stators Structure; the tooth poles of the first and second rotors have a 15° rotation mechanical angle difference; the first and second rotors share a rotating shaft with the truncated conical solid cylinder, and the outer chamfers of the truncated conical solid cylinder and the two stators There is an air gap length between them, when the first and second radial field windings conduct current, the first and second rotors provide radial levitation force, and at the same time the axial field windings conduct to control the magnetic flux in the stator teeth Density, so that the solid cylinder obtains a set of magnetic pulling force, and extracts the axial component of this set of magnetic pulling force to realize axial levitation control, and finally realizes five-degree-of-freedom levitation.

The invention belongs to the field of automobile motors, discloses a radial-axial magnetic field electromagnetic planetary gear power divider and aims to solve the problems of large size, complex structure, high cost, performance limitation and failure in effective power output of a system due to the fact that engines in existing series, parallel and series-parallel driving devices cannot simply and efficiently match with other parts of the system. A radial birotor motor and an axial torque adjustment motor are parallelly arranged in a shell of a motor. A flux adjustment rotor with q projection units in the radial birotor motor is driven by a prime motor, stators form a field with the pole number of 2p, and the required rotation speed is outputted by an output shaft of a permanent magnetic rotor with the pole number of 2n, wherein p is equal to |hn+kq|. The output rotation speed is independent from the input rotation speed to realize stepless speed change. The axial torque adjustment motor inputs driving torques or braking torques according to actual load demands to meet actual torque requirements of loads so as to balance input energy and output energy of output shafts of permanent magnetic rotors.

A magnetic particle inspection (MPI) apparatus is disclosed that includes a chordal field coil pair and a radial field coil pair. The chordal field coil pair includes first and second chordal field coils configured to produce a chordally oriented magnetic flux about a test article.

The invention relates to a radio frequency plasma chamber meeting the mechanism that negative hydrogen ions are generated through plasmas and belongs to the field of neutral beam heating in the controlled magnetic confinement nuclear fusion auxiliary heating technology. According to the radio frequency plasma chamber, the upper end of a discharging source region chamber is connected with a first air inlet and a preionization electrode flange in a sealing mode, and the lower end of the discharging source region chamber is fixedly sealed in the middle of a sealing cover at the upper portion of a diffusion chamber; the sealing cover at the upper portion of the diffusion chamber is provided with a second air inlet, and the lower end of the diffusion chamber is fixedly sealed to a bottom plate. A discharging coil is wound in the middle of the outer side of the discharging source region chamber, and the upper end and the lower end of the discharging coil are each provided with a first magnetic field coil; a second magnetic field coil generating a radial field is arranged at the bottom of the diffusion chamber. Through the radio frequency plasma chamber, the top of the diffusion chamber can be supplemented with fresh hydrogen; after the hydrogen collides with high-energy electrons diffused down from a source region, the density of excited vibrational-state hydrogen molecules in the plasmas in the diffusion region is increased, the electron temperature is decreased, and the probability that the negative hydrogen ions are generated in the plasmas is increased.

The invention provides a multi-blade collimator, which comprises a first blade mechanism and a second blade mechanism installed on a main frame along a first direction, wherein the first blade mechanism includes a plurality of blades for forming a first radial field; a second blade mechanism includes a plurality of blades for forming a second radial field; the first blade mechanism rotates around a second axial direction; and at least parts of the projections of the first radial field and the second radial field overlap along the second axial direction. In the technical scheme above, the overlapped part, of the first radial field and the second radial field along the second axial direction, is the final radial field of the multi-blade collimator. The first blade mechanism can rotate around the second axial direction to allow the multi-blade collimator to adjust the shape of the overlapped part of the first radial field and the second radial field according to the shape required by a radiated part and through adjusting a rotation angle of the first blade mechanism. Therefore, the radial structure finally formed of the multi-blade collimator is adjusted, so that an adaptive shape degree of the radial filed of the multi-blade collimator is improved.

An axial-radial magnetic field electromagnetic planetary gear power divider belongs to the field of automobile motors, and aims to solve the problem that in a conventional tandem-type / parallel-type / series-parallel driving device, the engine cannot simply and efficiently cooperate with other parts of a system, so that the system is large in size, complex in structure and restricted in performance and cannot output power effectively. The power divider is characterized in that a casing is divided into two parts which are provided with an axial double-rotor motor and an axial radial torque regulation motor; a magnetic flux regulating rotor with q protrusion units and in the axial double-rotor motor is driven by a primary machine, and a stator forms a 2p pole field, the required rotate speed is output by an output shaft of a p-m rotor with 2n poles, wherein, the relation expression that p equals to the absolute value of hn and kq is met, besides, the output rotate speed does not depend on the input rotate speed, so that infinitely variable speed can be realized; the torque regulation motor inputs driving torque or retarding torque according to the requirement of practical load to meet the requirement on practical torque of the load, so that the input energy and the output energy of the output shaft of the p-m rotor are balanced.

The invention relates to a three-degree-of-freedom magnetic suspension switched reluctance motor, which belongs to the field of magnetic suspension switched reluctance motors and magnetic suspension bearings. The motor stator is composed of a radial magnetic field motor stator and two magnetic bearing stators. Both the radial magnetic field motor stator and the two magnetic bearing stators have a salient pole structure. Each stator tooth of the radial magnetic field motor stator is wound with a motor winding. A magnetic bearing winding is wound on each stator tooth of the magnetic bearing stator; the rotor is composed of a salient pole rotor and two cylindrical rotors axially superimposed, the salient pole rotor is located between the two cylindrical rotors, and the salient pole rotor is used to generate torque , a cylindrical rotor is used to generate radial and axial suspension forces. The invention provides a three-degree-of-freedom magnetic suspension switched reluctance motor, which integrates a bearingless switched reluctance motor and an axial magnetic suspension bearing, and is highly integrated; there is only one set of windings on the stator teeth of the axial magnetic bearing, and the stator is convex. Pole structure, there are many optional structures; the levitation control is implemented by using the minimum inductance area, the levitation current has little influence on the torque current, and the phase-to-phase coupling effect is small.