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WO/1996/030991A1 |
The invention relates to an electrical machine having a generally cylindrical stator (1) comprising one or more sections (3, 4) fitted in succession in the axial direction of the machine, each section being provided with an annular worki...
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WO/1996/024187A1 |
Low cost motors including specifically two pole (1, 51 and 101) and four pole (201, 251, 278 and 301) motors are provided with magnetically conductive stacked laminations (3 and 203) each having a multi-pole portion with a rotor opening ...
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WO/1996/019861A1 |
In known transverse flux machines the losses in the magnetically soft body prevent an increase in efficiency. Whilst the production of the winding is remarkable owing to its simplicity, the production of the laminated iron body conveying...
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WO/1996/019033A1 |
An electric machine, in particular a generator for vehicles, has a revolving rotor mounted in a stator housing and having an exciting winding (24) secured against rotation to the rotor shaft. The winding ends (26, 28) extend up to collec...
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WO/1996/019039A1 |
A vehicle based AC power system includes a specialized high efficiency vehicle alternator (702) capable of supplying its maximum rated DC output current, even when being driven by an idling vehicle engine, to power a DC to AC inverter (7...
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WO/1996/018232A1 |
A switched reluctance d.c. motor having a plurality stators has been disclosed. Each stator comprises phase windings for energizing a set of stator poles. The stator poles are distributed about the circumference of the stator yoke. Two p...
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WO/1996/015582A1 |
A flat reluctance type three-phase motor which can output a large torque and can rotate at a high speed is constituted of a flat fixed armature (16) having magnetic poles the number of which is an integral multiple of three on its outer ...
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WO/1996/012337A1 |
A brushless generator provides increased ouptput by providing air-core coils (936, 956) in place of ferrous coils in regions of the generator which operate at high frequencies. The air-core coils (936, 956) enable the generator to rotate...
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WO/1996/009683A1 |
This motor has a special magnetic circuit which enables it to be powered by a very simple electronic circuitry. This motor has, according to the figure, four U-shaped Yokes (11, 112) with eight unevenly spaced poles (111) surrounding a r...
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WO/1996/007232A1 |
According to the invention the rotor winding (2) is powered via a circular current transformer (5), the secondary winding strands (7a, 7b) of which each have a symmetrical central tapping (8a, 8b). The central tappings (8a, 8b) are condu...
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WO/1996/003796A2 |
An electrical machine of the reluctance or permanent magnet type includes one or more pawns (24) of high permeance material which are relatively moveable along a plurality of C-shaped stators (20) which are regularly spaced at a predeter...
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WO/1996/001001A2 |
In order to provide an electric motor, comprising a housing, a rotor (10) rotating about an axis (12) therein, a stator (50) fitted in the housing, a winding allocated to the stator or the rotor and a control circuit controlling the fiel...
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WO/1996/000882A1 |
A switched reluctance machine comprises a stator (48) having an even plurality of salient stator poles, each of which having a stator winding disposed thereon and electrically coupled one to another to form diametrically opposed pole pai...
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WO/1995/029529A1 |
A switched reluctance starter/generator (100) is presented which has a stator (102) mounted within a housing (104) having an outer periphery and a plurality of salient poles (130) defining an inner periphery, the salient poles further de...
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WO/1995/026069A1 |
An electric machine (10) according to various aspects of the invention includes a transformer (120) having a rotating component (122) for transmitting power from a stationary portion (114) of the machine (10) to a rotating portion (112) ...
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WO/1995/022192A1 |
A two-phase variable reluctance electric motor has four stator poles (81, 82), each pole having a magnetising winding. Pole (81) has a first phase winding and pole (82) has a second phase winding and the phases of the windings alternate ...
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WO/1995/019062A1 |
The improved process of the present invention seeks to best manage the compromise between optimization of noise reduction, power output, magnetic permeability, strength of materials and center of gravity in the manufacture of an alternat...
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WO/1995/017033A1 |
An electric machine, in particular a rotary current generator, has a stator (10) secured in a housing and a claw polar-rotor system mounted on a shaft (2). The rotor system has a first polar ring (4) that ends in claws (41) and is design...
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WO/1995/012914A1 |
A variable-reluctance linear or rotary synchronous electric motor is described and comprises a multiple-phase magnetic inductor (27, 23), a system integral with the inductor for the concentration of the flux in a multiplicity of magnetic...
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WO/1995/002922A1 |
This reluctance motor rotates at a high speed with small vibrations, but develops a great output torque. The torque characteristic of the output torque is flat. The motor comprises a rotor having n (n is a natural number of 2 or more) sa...
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WO/1995/000996A1 |
A hybrid alternator includes a stator (10) and a rotor (20), with the rotor (20) having longitudinally separate wound field (24) and permanent magnet (38) rotor portions. A rotor excitation circuit applies a forward polarity to the wound...
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WO/1994/029942A1 |
A flux path and core loss reduction assembly is provided. The assembly comprises a magnetizable peripheral rotor section (18) upon which armature windings (70e-84e) are disposed, isolated from the rest of the assembly by a non-magnetizab...
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WO/1994/027354A1 |
In order to reduce the noise generated during the operation of a reluctance motor with reduced reluctance rotor poles (2.1) distributed around the circumference of the rotor, forming recesses (5) having an increased reluctance, the reces...
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WO/1994/027361A1 |
A variable speed constant frequency synchronous electrical generating system includes a generator rotor (33) with a polyphase field winding (35) whereby the position of the electromagnetic field relative to the rotor structure (33) can b...
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WO/1994/023486A1 |
A permanent magnet generator (50) includes a rotor (56) having poles (P1-P12) wherein one of poles (P1) of the rotor is non-magnetic. A stator (54) has stator windings (106, 118, 130) wound in cooperation with the poles of the rotor. The...
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WO/1994/022204A1 |
This invention relates to high-density discoidal brushless induction open frame motors and generators with multistacking, multiphasing and multistaging capability. These motors may be in the range from 10 hp to 25,000 hp or more and thes...
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WO/1994/021031A1 |
In a brushless synchronous machine, e.g. a synchronous generator, with an exciting machine (2), the field excitation winding (9) of which is powered via a regulator (11) connected to a separate auxiliary winding (A, B, C, D, E) in the st...
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WO/1994/019864A1 |
An economical reluctance drive/generator system including a double AC-fed reluctance motor (2) having two three-phase stator windings (p1 and p2) and a rotor (20) with simple salient poles. The speed of the motor (2) may be varied by alt...
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WO/1994/019855A1 |
A device for field weakening in a doubly-salient variable reluctance motor having permanent magnets (22, 24) in the stator (10). The field weakening increases the constant power range of the motor and is accomplished by controlled moveme...
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WO/1994/018741A1 |
Known multiphase electric machines have conductor wires which do not sufficiently utilize the space available in the grooves and winding head, or which are costly to produce. Besides a good utilization of the available space, the length ...
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WO/1994/009553A1 |
The invention concerns a stator-excited starter-generator with a permanent-magnet assembly (M) disposed in the axial space between two sector stator elements (SS1; SS2) each excited by an exciter coil (EW1; EW2) of opposite polarity. The...
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WO/1994/002984A1 |
An electric machine has a rotor that rotates around an axis and a stator provided with a set of several C-shaped polar elements arranged around the axis at the same angular distance from each other. Each polar element surrounds a stator ...
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WO/1994/002986A1 |
An electric machine has a rotor that rotates around an axis and a stator provided with a set of several C-shaped polar elements arranged around the axis at the same angular distance from each other. Each polar element forms with its base...
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WO/1994/002985A1 |
An electric machine has a rotor that rotates around an axis and a stator provided with a set of several C-shaped polar elements arranged around the axis at the same angular distance from each other. Each polar element surrounds a stator ...
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WO/1994/001917A1 |
An electric motor-wheel including a hollow shaft with a first opening at a first end thereof and a second opening at a second end thereof, wherein said first opening receives conductors from outside the motor-wheel; a stator coaxial with...
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WO/1994/001919A1 |
A fault-tolerant reluctance motor has a multiphase stator winding. The stator (2) has a different number of poles from the rotor (5). The lead angle and the pole angle beta, betar) embraced by each stator and rotor pole (3, 5) is at leas...
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WO/1994/000905A1 |
Proximity switches and circumferentially movable stator windings allow a motor-generator (2) to simultaneously sense and switch from a synchronous motor position to a synchronous generator position. The mechanism replaces the conventiona...
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WO/1994/000910A1 |
An alternator driven by an internal combustion engine of a motor vehicle, said alternator comprising: an alternator housing (106); stator circuit means (107) within said housing for conducting electrical energy from said alternator; arma...
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WO/1993/022817A1 |
An electrical power generating system (1) for generating alternating current includes a main generator (14) having a stator (22) and a rotor (24) and an excitor (12) having a stator (16) and a rotor (18) with the rotors being coaxial and...
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WO/1993/022819A1 |
An electrical generating transformer with magnetic flux deflection for industrial use, e.g. in wind power engines. The transformer has two magnetic circuits and three poles (11, 12, 13) with two sections (14, 15) of magnetic circuits cir...
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WO/1993/019512A1 |
An electromotive force generator comprising an armature (4) on a stator (2) in which a rotor (1) is housed having a plurality of magnets (6a, 6b), said armature comprising at least an electrical winding (3a, 3b) on a ferromagnetic core (...
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WO/1993/018570A1 |
An asymmetrical, electro-mechanical device (10) comprises a geometrically-magnetically-asymmetrical stator (12) and a rotor (22) which move with respect to each other. There is a stator air gap (20) which makes the stator (12) asymmetric...
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WO/1993/015550A1 |
A reluctance motor, which has a small diameter, a high rotating speed and a high efficiency, or which has a large output torque, little vibration and, if necessary, which can be regeneratively braked. The rotor of the reluctance motor is...
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WO/1993/014551A1 |
An AC machine such an an AC motor is disclosed which has particular application for raising and lowering lift cars in a lift well. The motor has a stator (30) and a rotor (20). The stator (30) has stator pole pairs (35, 55) and a coil (8...
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WO/1993/012573A1 |
The present invention relates to doubly salient reluctance machines (DSRMs) including switched reluctance machines, stepping motors and hybrid stepping motors. To improve the utilisation of the machine windings and associated electronic ...
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WO/1993/009588A1 |
A system for supporting conductors (30) in a dynamoelectric machine (2) having a stator assembly (4) with a plurality of stationary armature elements (26) spaced about a circumference positioned radially about a central longitudinal axis...
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WO/1993/008631A1 |
A magnetic force induction generator comprising a magnetic force induction core of layers of stator iron, a rotor having a wound rotor coil and being mounted in a central through-hole of the magnetic force induction core, the magnetic fo...
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WO/1993/007671A1 |
The laminations (40, 50) respectively comprising the rotor and stator poles (116a, 116b, 118a, 118b, 120a, 120b, 124a, 124b) of a switched reluctance machine (SRM) (114) are skewed as they are stacked during machine assembly in order to ...
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WO/1993/006648A1 |
Proposed is an electric motor or generator, preferably a three-phase generator for motor vehicles, with a housing (4), a rotor (13) rotatably mounted inside the housing, at least one fan (32) secured to the rotor, and a rectifier unit (4...
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WO/1993/006645A1 |
A support and positioning structure for a stator assembly (4) of an inductor type dynamoelectric machine (2) is disclosed. The stator assembly (4) includes a plurality of stationary C-shaped armature elements (26) circumferentially locat...
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