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WO/2002/095922A1 |
A stator in a synchronous fan includes first and second main windings, and an auxiliary winding. Illustratively, the first and second main windings are wound in a bifilar arrangement. In addition, the stator has a switch to switch the st...
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WO2002061924A9 |
A controllable switching mechanism (100) integrally housed within a motor (100) to optimally couple the windings (112, 114, 116) of an AC motor for improved torque-speed characteristics. The switching mechanism (100) includes a plurality...
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WO/2002/090775A1 |
The invention relates to a rotary piston pump comprising a casing (10) with a cylindrical annular space (14) and an annular piston (12a, 12b), which is arranged inside the annular space (14) in a manner that permits it to rotate and to b...
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WO/2002/091554A1 |
A torque-generating apparatus comprises a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitudinal axis and a second assembly (2) arranged coaxially within the first assembl...
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WO/2002/091553A1 |
A combination of a torque-generating apparatus with an alternator/generator. The torque-generating apparatus comprises a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitud...
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WO/2002/078156A1 |
A case retained external capacitor (22) that can be installed onto the motor sleeve (24) of an electric motor (26). The case retained capacitor includes a capacitor case (28) having a mounting clip (68) formed along its inner wall. The m...
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WO2001059916A9 |
A motor includes a stator core, a rotor in rotational relationship with the stator core and a main winding on the core. The main winding includes a 4-pole configuration and an 8-pole configuration and the motor has a 4-pole auxiliary win...
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WO/2002/067406A2 |
The present invention relates to an A. C. electrical machine comprising: a plurality of disk-shaped annular stator elements stacked and spaced equidistantly from each other and mounted on a frame; a plurality of disk-shaped rotor element...
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WO/2002/061910A2 |
Uninterruptible power supply system (200) uses a slip-ring induction machine (10) and a flywheel combination. The UPS system (200) comprises a back-up power source connected in parallel to a primary power source such as utility grid. Dur...
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WO/2002/060034A2 |
An induction generator (100) having one or more energy windings (122) and one or more auxiliary windings where the auxiliary windings have fixed and switched capacitors which are used to control the induction generator output under varia...
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WO2001003271A9 |
A novel electric motor rotor has a plurality of laminate discs (20) having a central aperture (22) and a plurality of slots (30) therein for acceptance of a plurality of electrically conductive bars (50). The slots (30) have a radially o...
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WO/2002/056446A1 |
A material of aluminum is used as a material for the conductor bar (7a) and end rings (7b, 7c) of the rotor (5) of a dynamo-electric machine. The end rings (7b, 7c) are electrically and mechanically joined to the opposite ends of the con...
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WO/2002/054564A1 |
There is provided a highly-efficient alternating current (AC) motor which improves efficiency and power factor to minimize power consumption. The highly-efficient AC motor includes a stator, a rotator having a secondary circuit for induc...
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WO/2002/047236A2 |
A constructive arrangement for the starting system of an electric motor, comprising a basic body (10), to which are mounted a cover (20), a starting device (30) and a motor protector (40, 40'), said basic body (10) being provided, on an ...
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WO/2002/035689A1 |
A high phase order motor has more than three phases. Each phase has at least two terminals (3). Each terminal is connected to at least one terminal of another phase. An inverter for synthesis of power of a plurality of phases, is driving...
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WO/2002/017461A2 |
The invention relates to a novel squirrel cage rotor. The aim of the invention is to provide a squirrel cage rotor that allows for a power output of the motor of more than 1 MW even at speeds of more than 10000 rpm. To this end, the cond...
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WO/2002/001701A1 |
An electrical motor comprising a generally circular, substantially flat electrically conductive element (10) and a plurality of electromagnets (12) located in spaced apart relation around an edge of the electrically conductive member (10...
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WO/2001/094783A1 |
A pump (10) which is designed to be mounted within a recirculating water system where a portion of the recirculating water is diverted (bypass water) and caused to flow through a motor chamber (24) with this recirculating water to absorb...
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WO/2001/078225A1 |
A single-phase motor (10) particularly for submersed pumps, characterized in that it comprises an annular capacitor (14) interposed between the pump coupling head (15) and the stator winding pack (12).
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WO/2001/050588A1 |
An uncluttered secondary induction machine (100) includes an uncluttered rotating transformer (66) which is mounted on the same shaft as the rotor (73) of the induction machine. Current in the rotor (73) is electrically connected to curr...
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WO/2001/047089A2 |
An electronically commutated electrical machine having a rotor (3) interacting with a stator (2) in the form of an armature or armature comprising insulated conductors (11) interleaved with cores of ferromagnetic material (7) passing bet...
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WO/2001/041287A2 |
A device for converting electrical energy into mechanical work is disclosed. The device includes a rotor body having a radial length, a ferromagnetic layer having a radial thickness, the ferromagnetic layer being disposed on the rotor bo...
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WO/2001/037398A2 |
The object of this invention is the construction in electric motor drive, where a asynchronous motor, such as drum motor, which has a stator (2) mounted on a non-rotatory shaft (1) and has rotatory, like by means of bearings (3), connect...
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WO/2001/035516A1 |
The invention relates to an alternating motor with starter, wherein the starting element is a capacitor or capacitor bank which connects between power source and motor. When it starts step by step, capacitive reactance will decrease step...
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WO/2001/028070A2 |
The invention relates to an electric motor, comprising a rotor (1). One side of said rotor (1) is mounted in a stator (3) by means of a bearing (2) and the rotor tapers away conically from said stator in an axial direction, forming an ai...
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WO/2001/020750A2 |
A superconducting motor (1) which operates in a synchronous mode of operation, can also be operated in an induction mode in the event that the superconducting components (30) of the motor (1) lose their superconducting properties (e.g., ...
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WO/2001/018942A1 |
The invention concerns an AC electric motor (1) comprising a stator magnetic circuit including a first part (2) whereon are mounted electrical windings (7 and 8) and a second recessed part (10) wherein is mounted a rotor (14). The invent...
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WO/2001/006624A1 |
A synchronous motor includes a stator, a rotor and permanent magnets. The rotor includes a rotor iron core and rotatable relative to the stator, a plurality of conductor bars accommodated within corresponding slots in the rotor iron core...
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WO/2001/001549A1 |
A mounting bracket (10) for a motor run capacitor (46) includes a capacitor clasp (18) which extends from a base (12) to the motor run capacitor. The mounting bracket further includes a U-shaped member (38) which attaches the bracket to ...
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WO/2000/076055A1 |
The invention concerns a method for operating a windmill with variable rpm and a directly network connected primary generator. By this method there disposed a regenerative slip generator (5) between the gear (1) of the windmill and the p...
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WO/2000/074217A1 |
The invention relates to a starter generator for an internal combustion engine, comprising a rotor and a stator which are substantially composed of stacked and joined metal sheets.
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WO/2000/067266A1 |
A simpler, lower-cost way of installing polymer capacitor canisters on motors and other equipment. A bracket (17) and/or fastener (18) is attached to the canister (e.g., by ultrasonic welding a polymer fastener (18) or bracket (17) direc...
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WO/2000/048295A1 |
A brushless doubly-fed induction machine comprising dual cage rotors (201, 202), suitable for use in generator applications requiring a fixed-frequency electrical output that is independent of a rotational speed at which the machine is d...
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WO/2000/046904A1 |
The invention relates to a 3-phase A.C. asynchronous motor for driving on-road vehicles. Said motor is provided with a stator and a rotor which is embodied as a squirrel cage and has numerous copper rods that are inserted into the corres...
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WO1999066625A9 |
A rotor core is formed from a stack of laminations. The core includes a plurality of generally circular laminations in a stacked formation one on top of each other. Each lamination defines an axis collinear with an axis of each other lam...
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WO/2000/036733A1 |
The unit includes two independent stator sections (100, 200), which are arranged one beside the other. The rotors of the two stator sections are keyed onto the same shaft. The stator sections are fed with multiplicities of voltages (V¿A...
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WO/2000/031857A1 |
A wound-rotor induction motor comprises a wound stator, a wound rotor secured to the rotary shaft on the rotational center side of the wound stator, and a squirrel cage rotor provided on the rotational center side of the wound rotor. An ...
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WO/2000/019586A1 |
The invention relates to roller unit consisting of an inductively heated roller (2), a drive motor (9-15), an inductor (4, 5) and a frequency converter (30, 30A). According to the invention not only the converter (30, 30A) but also the t...
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WO/2000/016351A1 |
Apparatus for alternatively mounting either a large cylindrical capacitor having a given length and a given diameter or a small cylindrical capacitor having a given length and a given diameter. The apparatus includes a substantially plan...
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WO/2000/008736A1 |
The present invention can be used in electro-mechanical systems for converting energy and essentially relates to an induction asynchronous motor. This motor comprises a first member (1) for generating a magnetic field as well as a second...
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WO/2000/008737A1 |
The present invention can be used in power producing and controlling systems, and essentially relates to a power generating apparatus which comprises a generator coupled to a primary motor (1) as well as an automatic control system. The ...
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WO/2000/001058A1 |
Divided magnet rotors R having a stepped skew rather than a helical skew are described. The stepped skew enables the use of straight magnet sections (44) that can be inserted into the rotor core notches (38) thereby eliminating the need ...
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WO/1999/063645A1 |
A single phase, three-speed Pole-changing electric motor has a stator and a rotor rotatably mounted within the stator. The stator includes a core having a plurality of slots, and a plurality of windings in the slots for operating at leas...
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WO/1999/061847A1 |
Hermetic refrigeration compressor, in particular for household refrigeration appliances, comprising control and connection means, such as a motor overload cutout (13) provided with a protective support (14), an electric motor starter (16...
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WO/1999/054985A1 |
A stator (1) for an electrical induction machine comprises at least two stator sections (2, 3) at two different axial positions, each section having a plurality of circumferentially separated, radially extending teeth (6, 7) and each too...
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WO/1999/053604A1 |
A starting system for an electric motor, comprising an actuating means (10) provided inside the electric motor and submitted to a magnetic field produced by the main coil (1) upon its energization for operation of the electric motor, sai...
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WO/1999/049563A1 |
An induction machine (20) adapted for variable speed operation, including low and zero speed, comprising: a polyphase stator having two separate stator windings (abc, xyz) with separate input terminals for each winding by which drive pow...
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WO/1999/048190A1 |
The invention relates to a multi-phase transverse flux machine, comprising a stator with substantially U- and I-shaped cores (1, 2) made of a soft-magnetic material and a stator winding (3) for each phase which generates a magnetic flux ...
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WO/1999/041823A1 |
The invention relates to a short-circuited rotor of a unit used for converting electrical power into mechanical power or mechanical power into electrical power, said rotor being surrounded by a stator including a winding. Said rotor is p...
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WO/1999/038244A1 |
A motor which can be cooled more efficiently while the characteristic deterioration of the motor is suppressed. Radial ventilation ducts (9) which communicate axial ventilation ducts (7, 8) and the gap what is called an air gap (10) betw...
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