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WO/1999/001924A1 |
Electrical machines operating according to the reluctance principle have toothed air gap surfaces between their moving and fixed parts. The magnetizability of these teeth directly affects the performance of the machine. According to the ...
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WO/1998/059410A1 |
The invention relates to an electrodynamic machine, especially a synchronous generator and/or motor, comprising rotor and stator coil pairs, each having any number of pole pairs. Said rotor and stator coil pairs are aligned in relation t...
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WO/1998/059406A1 |
The invention relates to an electric drive with magnetic bearings, comprising an electric machine with magnetic bearings, said machine having windings built into the stator or rotor for producing the torque and the carrying force, and an...
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WO/1998/059407A1 |
The invention relates to a electric drive mechanism with a magnetic bearing. The inventive electric drive mechanism comprises an electric machine with a magnetic bearing, mechanical and magnetic bearing windings being provided in the sta...
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WO/1998/054823A1 |
An AC generator for vehicles which is improved in occupying rate and efficiency and reduced in size and noise by eliminating the interference between the coil ends by forming two-layer coils in slots. The AC generator (1) is provided wit...
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WO/1998/054822A1 |
A small-sized, high-efficiency, and low-noise AC generator for vehicle is obtained by eliminating the coil end interference by laminating coils in slots in two layers and improving the space factor. The AC generator (1) for vehicle is pr...
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WO/1998/050998A1 |
A motor comprising two or more rotors (20, 30) rotated by means of a common power supply (6), each rotor (20, 30) having a plurality of poles (22, 32) and being associated with a stator (16, 26) having a plurality of poles (18, 28), wher...
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WO/1998/048502A1 |
The invention concerns a rotating electrical machine with double excitation mounted on a shaft comprising a rotor (82) whereof the magnetic circuit carries at least one excitation element and a stator (90) whereof the magnetic circuit ca...
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WO/1998/047216A1 |
The invention concerns a electrical transformer with switch flow comprising a stator (200) and a rotor (100), the stator including on its inner face a series of notches housing a series of stator coils (213), and further comprising a ser...
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WO/1998/044615A1 |
Methods and devices are provided for varying the number of poles on a rotor of an electrical motor by providing the rotor of the motor with a conductor control circuit which can control characteristics of the magnetic field generated by ...
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WO/1998/040952A1 |
A rotor core (6) in which a plurality of core sheets (1) are laminated on one another on a rotor shaft (4) and a plurality of slits (3, 7) and a plurality of strips (2) are alternately arranged in a radial direction of each of the core s...
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WO/1998/040959A1 |
The G surge voltage, which is generated when a B terminal serving as the output terminal of an AC power generator for vehicle comes off, is quickly lowered. A permanent magnet (28) which serves as a field as a second field source, togeth...
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WO/1998/037623A1 |
A line synchronous generator with an exciter and generator stage. The exciter stage includes an exciter stator (28) and an exciter rotor (32), and the generator stage includes a generator stator (26) and generator rotor (34). In one embo...
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WO/1998/031089A1 |
A generator for an internal combustion engine which employs an induction motor as an alternator and enables generation of specified power regardless of the number of rotations of the internal combustion engine. The generated energy P of ...
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WO/1998/025330A2 |
An electric machine comprising a ferromagnetic first part (11) having a plurality of teeth (11C) arranged in a row, a ferromagnetic second part (12) having a plurality of poles (16, 17) arranged in a pole row confronting the row of teeth...
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WO/1998/024167A1 |
Within a switched reluctance electric motor stator, poles (4A, 1, 3A, 6, 2A, 5, ...) are arranged so that two by two adjacent stator poles are magnetically joined to a stator pole pair (4A, 1; 3A, 6; 2A, 5; ...). The value of the ratio o...
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WO/1998/023024A1 |
This switched reluctance machine has at least six magnet yokes (11) on the stator side. The yokes are placed circularly and they carry windings (112). These yokes (11) can be placed at the inner side and/or the outer side of the rotor (1...
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WO/1998/016990A1 |
A brushless exciter diode wheel system includes a diode wheel (12) and an electrical connection apparatus that is coupled to the diode wheel. The electrical connection apparatus includes a fuse support block (14), a diode support block (...
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WO/1998/015049A2 |
A reluctance machine system is provided that comprises a reluctance machine having a stator defining a plurality of stator poles, a plurality of phase windings wound around the stator poles and a rotor defining rotor poles and inter-pole...
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WO/1998/008290A2 |
A brushless synchronous rotary electrical machine comprises stationary stator windings (76) and 'rotor' windings (70). Only the rotor (54) moves. The rotor winding (70) is a stationary helical winding with the rotor shaft (42) and attach...
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WO/1998/005547A1 |
Energy converters characterised by low manufacturing costs, high efficiency and small weight are required to generate electric energy in vehicles. The disclosed energy converter, which is arranged in or on the hub of a vehicle wheel, has...
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WO/1998/005112A1 |
An electrical machine comprises a four-pole stator (2) provided with a field winding (10) and an armature winding (11), each of the windings (10, 11) being split into two coils (22, 23 or 24, 25) closely coupled and wound so that diametr...
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WO/1998/001932A1 |
A reluctance machine including a plurality of phase windings where each phase winding comprises a plurality of fractional-pitched coils. The reluctance machine may be coupled to a drive that can energize one, two or more of the phase win...
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WO/1997/045943A1 |
A self-starting brushless electric motor comprises a first motor part (stator) (11) and a second motor part (rotor) (16), each motor part having plurality of pole units (12U, 12V) arranged in a pole row. The motor parts are supported for...
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WO/1997/045944A1 |
A self-starting brushless electric motor having: a first motor part (stator) (11) with poles (15S, 16A) arranged in a first pole row, said poles comprising for each winding phase a pole group (13) including a pole pair consisting of a re...
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WO/1997/044879A1 |
An electric motor, method of manufacturing and operating the motor is described. The motor comprises a stator (82) and rotor (74) made from an amorphous material thereby reducing grain boundaries and allowing smaller poles to be etched. ...
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WO/1997/039512A1 |
A switched reluctance motor includes a stator defining a plurality of radially-inward-extending poles (18) and a rotor defining a plurality of radially-outward-extending poles. The poles (18) of the stator define a shape in radial cross ...
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WO/1997/028596A2 |
A flywheel energy conversion device (10) provides highly efficient conversion between kinetic and electrical energy. The flywheel (10) produces increased output by providing armature coils (44) in an air gap (46) formed about the flywhee...
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WO/1997/025771A1 |
In a vehicle electrical system with a generator, the exciting circuit of which is affected by a voltage regulator, in which, besides a first 12 V voltage level, there is a second, higher, level, the latter takes the form of the parallel ...
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WO/1997/023939A1 |
A basic module for a discoidal machine comprising at least one stator subassembly (1, 41), at least one rotor subassembly (2, 42) and at least one housing member (5, 43) connected to the stator subassembly (1, 41), said subassemblies bei...
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WO/1997/023941A1 |
A hybrid single-phase variable reluctance motor system has a stator (1) having a pair of oppositely disposed salient main poles (4) provided with main windings (12) and at least one pair of oppositely disposed salient auxiliary poles (5,...
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WO/1997/021266A1 |
Low cost multi-pole motor construction (125) and related methods of manufacture are disclosed. The economic advantages inherent in the construction and manufacture of C-frame motors, including modified and improved C-frame or twin bobbin...
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WO/1997/019506A1 |
A stator core for a variable reluctance motor. The stator core having a number of stator lamina joined together in a direction along a longitudinal axis. Each of the stator lamina include a number of circumferentially spaced-apart pole p...
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WO/1997/015978A1 |
A rotary motor and a rotary magnetic bearing are integrated in a compact assembly (10) that is contactless. A stator assembly (16) surrounds a ferromagnetic rotor (18) with an annular air gap (20) which can accommodate a cylindrical wall...
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WO/1997/015108A1 |
A switched reluctance machine (10) includes a first element (12) having a plurality of uniform poles (18A, 18B, 18C, ...) and a second element (12) having a first pole (22A, 22C) and a second pole (22B, 22D). The first pole has a wide fa...
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WO/1997/013986A1 |
The invention relates to a rotodynamic machine for conveying a fluid, like a turbo-machine (2) or a centrifugal pump, with at least one drive and bearing device (1) in the form of an electric motor with a stator and a magnetic-bearing ro...
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WO/1997/014209A1 |
An electrical machine such as a generator or motor includes a rotor portion (47, 49), a stator portion (44, 51) and a field circuit (42, 50) for generating a magnetic flux associated with one of the rotor portion and the stator portion. ...
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WO/1997/007583A1 |
A new class of doubly-salient machines which incorporates a specific stator/rotor pole arrangement to provide a linearly increasing flux linkage over the entire area of pole overlap, and either stationary permanent magnets (22, 24) mount...
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WO/1997/005692A1 |
A reluctance motor comprising a fixed armature (1) and a rotor (5) of a magnetic substance disposed inside the armature (1) with a gap between them. Two salient poles (5a, 5b) having a width which is 2.5 times the angular pitch of slots ...
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WO/1997/004520A1 |
A reluctance motor including a rotor (1) having n (n: 2 or greater integer) salient poles (1a, 1b) having an equal width and disposed at equal angular intervals, and a stationary armature (16) having magnetic poles (16a, 16b, 16c, ...) w...
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WO/1997/002428A1 |
An electric power starter generator system comprises a synchronous generator and an induction motor/generator mutually coupled to a shaft being driven to an external prime mover. The synchronous generator and the induction motor/generato...
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WO/1997/001882A1 |
An electric motor or generator (10) containing one or more stationary axial coils (12) for generating magnetic fields at the poles of one or more rotors (14) which interact with two or more field poles (20A-20D) and their associated magn...
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WO/1996/042132A1 |
A synchronous reluctance motor-generator exhibiting low eddy current and tooth harmonic losses, high bending stiffness and high radial strength, which can be manufactured at low cost, includes a stator and a conductively shielded solid r...
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WO/1996/039737A1 |
A pulsed power rotary amplifier (100) provides high-magnitude electrical power on-demand by converting stored kinetic energy into a highly controllable electrical signal. The conversion occurs through the use of a composite structure for...
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WO/1996/038903A1 |
A self-starting brushless electric motor having a first motor part (stator) (11) with poles arranged in a row, said poles constituting ferromagnetic poles (13S) or permament-magnet poles (14A), a second motor part (rotor) (12) with poles...
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WO/1996/037040A1 |
A switched reluctance motor includes an auxiliary winding interspersed among the main phase windings such that a constant inductance ratio is established between the main and auxiliary windings regardless of rotor position. The auxiliary...
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WO/1996/035257A1 |
A switched-reluctance rotary machine the rotor of which can turn at a high speed without causing electromagnetic vibrations of its shafts. The rotary machine includes salient poles with windings that conduct currents for generating the t...
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WO/1996/031934A1 |
The invention concerns a rotary machine which comprises a driven rotor (2) and an electric motor (4, 14), with a stator (4) and a driving rotor. The stator (4) is also in the form of an electromagnetic bearing (4, 14) for the driving rot...
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WO/1996/030992A1 |
A hybrid alternator comprising a stator (702) and a rotor (710) mounted for rotation within the stator and separated therefrom by an air gap. The rotor has a rotor core defining a plurality of magnetic poles (716) wherein adjacent ones o...
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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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