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WO/2011/030203A1 |
A squirrel -cage rotor (1) for asynchronous motors is provided with a lamination stack (2) made of a magnetic material and a plurality of bars (8), the intermediate portions- (9) of which engage respective slots (3) of the lamination sta...
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WO/2011/031267A2 |
A system and method for efficiently regulating the fuel consumption of a variable speed combustion engine used to control loads such as a hoist motor in a mobile gantry crane based on load motor speed commands issued by a crane operator....
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WO/2011/024095A1 |
An active reactive induction motor is provided. The motor comprises two sets of three-phase windings. One set of windings carries the active power and is called the power windings. The second set of windings carries the reactive power an...
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WO/2011/020788A2 |
The invention relates to a cage rotor for an asynchronous machine (1) comprising starting bars for improving the starting behavior. The invention further relates to a method for producing such a cage rotor. In order to achieve as great a...
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WO/2011/015494A1 |
The invention relates to a method for producing a beveled cage rotor (1) for an asynchronous machine (2) and to a cage rotor (1) that can be produced by means of such a method. In order to improve the efficiency of the asynchronous machi...
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WO/2011/005039A2 |
The present invention relates to an apparatus for generating alternating current power by a direct current supply brush that rotates with a field pole generator, and an apparatus for generating direct current power. Accordingly, there is...
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WO/2011/002334A1 |
The invention pertains to the field of power generation and can be used in electromechanical energy conversion systems, in particular in asynchronous short-circuited machines. The essence of the proposed invention is that the action of a...
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WO/2010/145089A2 |
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WO/2010/142152A1 |
A double speed single phase alternating current motor includes a stator, a rotor, and an electronic starting circuit. The coil winding of the stator includes a starting winding (L0), a first main winding (L1), and a second main winding (...
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WO/2010/141572A1 |
A rotor for use in an electrical motor which includes an anti-expansion ring centrally mounted on the rotor to restrict the extent rotor elements mounted on a rotatable shaft may expand outward due to centrifugal forces generated when th...
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WO/2010/121697A1 |
The invention relates to a short-circuit rotor for asynchronous machines and a method for the production thereof. According to the invention, the rotor packet (3) is packaged together with the short-circuit rings (4). The short-circuit r...
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WO/2010/121983A1 |
The invention relates to an electric machine in the performance range of several MVA, in particular an asynchronous machine, comprising a rotor rotating about an axis with a central body, a shaft and a rotor winding, wherein said rotor w...
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WO/2010/108341A1 |
A wound rotor brushless doubly-fed motor. A stator comprises two sets of three-phase windings, and the numbers of the pole-pair of the windings are p1 and p2, respectively. The rotor comprises multi-phase wound windings, and the number m...
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WO/2010/100007A1 |
The invention relates to a squirrel-cage rotor for an asynchronous machine. In order to increase the electrical efficiency for a cage rotor composed of two materials, the cage rotor comprises a rotor core (1) having grooves (3), end ring...
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WO/2010/100086A1 |
The invention relates to a short circuit rotor for an electrical asynchronous machine. A layer made preferably of copper or copper alloy applied in the rotor slots by galvanization or another method fulfills the function of a short circu...
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WO/2010/098947A2 |
An electrical induction motor has a main winding formed with two electrical conductors having different electrical resistivities. The motor includes a stator having a structure about which a winding is formed, and the winding includes a ...
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WO/2010/085044A2 |
The present invention relates to a power-generating apparatus which generates electrical power using hydraulic force, wave force, or wind force. More particularly, the power-generating apparatus of the present invention is configured suc...
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WO/2010/061618A1 |
Disclosed is an energy converter that is comprised of a new, thermodynamic property rotor and that converts electricity to power and heat, improving energy transmission performance. This energy converter is equipped with: a magnetism gen...
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WO/2010/052226A1 |
A squirrel-cage rotor for a process gas-cooled asynchronous machine comprises a rotor core (8) made of a low-alloy steel and a rotor cage (2) surrounding said rotor core (8), said cage made of an electrically conducting material, and com...
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WO/2010/047173A1 |
A squirrel cage induction motor comprising a stator core (11), a plurality of stator slots (12) provided in the stator core (11) in the circumferential direction thereof, a plurality of stator windings (13) contained in the stator slots ...
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WO/2010/036741A2 |
In one possible implementation, a method for forming a motor winding is provided which includes compressing a Litz wire to form a compacted Litz wire and forming the winding with the compacted Litz wire. In one possible embodiment, a mot...
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WO/2010/035318A1 |
Smooth rotation control can be performed while raising a drive torque being generated and quickening acceleration at the time of start. The rotating mechanism comprises a stationary section (120) having a first induction coil (124) gener...
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WO/2010/021867A2 |
A six lead, two speed, consequent wound, single phase induction motor with a tapped auxiliary winding having a 2-pole high speed mode and 4-pole low speed mode. A portion of the auxiliary winding is connected in series with the four pole...
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WO/2010/020064A1 |
A method for producing a “derived motor” based on an “original motor. Based on the parameters of the “original motor” (A), and on the principle that the weight of the copper wires of the stator windings of the “original motor...
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WO/2010/016106A1 |
A high efficiency induction motor producing high starting torque without deteriorating the fitting strength of shrink fitting, and a highly reliable enclosed compressor in which floating amount of refrigerating machine oil is suppressed....
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WO/2010/012982A2 |
An electrical machine is described which has a first part comprising at least one assembly of insulated laminar conductors in which a pattern of current paths is defined and by which a plurality of alternating phase-related electric curr...
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WO/2009/144732A2 |
A method and a device for converting mechanical oscillations originating from moving objects into electric energy, said method comprising excitation, catching, fixation and accumulation of said mechanical oscillations in the area of move...
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WO/2009/135024A2 |
A doubly fed axial flux induction generator (12) may include a prime mover (20) configured to provide mechanical energy. The doubly fed axial flux induction generator (12) may also include a rotor assembly (24, 26) coupled to the prime m...
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WO/2009/119333A1 |
Disclosed is a rotating electrical machine reducing a magneto motive force harmonic without reducing fundamental wave magnetic flux that a stator generates when stator winding is set to be concentrated winding and improving performance. ...
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WO/2009/118135A1 |
The method is used to start up a multiphase electric motor operating in star-connected mode. The method provides for conductive bridging of at least one coil portion of one phase of the motor and electrical separation of the bridged coi...
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WO/2009/118433A1 |
The invention relates to wind turbines provided with doubly fed induction generators and with at least one power converter which is novel in that, under certain circumstances, it enables the turbine to operate as a full converter (FC) sy...
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WO/2009/093345A1 |
An object is to provide an induction electric motor which can obtain high activation torque without using a specific driving circuit and which is excellent in terms of efficiency at the time of ordinary operation. The induction electric ...
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WO/2009/089573A1 |
An electric car has a primary power system comprising at least one integrated generator and transformer, and a secondary power system comprising a contoured and streamlined solar panel roof. The integrated generator and transformer is a ...
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WO/2009/084245A1 |
An object is to provide an electric motor for a compressor starting torque for which can be increased with the rise of the price of a component and a deterioration in efficiency in operation suppressed. The electric motor for the compres...
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WO/2009/084251A1 |
An object is to provide a rotator for an induction electric motor for improving the property of the electric motor by concentrating a magnetic flux saturation portion of rotator teeth in one place. In the rotator (1) for the induction el...
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WO/2009/066914A2 |
The present invention relates to an induction motor having multi-stage rotors arranged concentrically and being usable as a generator. More particularly, the present invention relates to an induction motor, which includes a core having c...
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WO/2009/038678A1 |
The present invention relates generally to motor rotors. More particularly, the invention encompasses a motor rotor having at least one rotor bar. The invention also includes a system and method with a rotor having parallel sided rotor b...
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WO/2009/028464A1 |
A rotation difference is generated between a first and a second rotor (28, 78) and a third rotor (18), which causes an induced current to flow in a first rotor winding (30). This causes a torque functioning between the first rotor (28) a...
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WO/2009/023206A1 |
A method for controlling a multi -phase motor includes withholding energization of a first phase of the motor for a non-zero period when the first phase's dwell time begins. Energization of the first phase is activated upon the expiratio...
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WO/2009/014459A1 |
An electric power generator for generating a substantially constant frequency output from a varying mechanical speed input such as from a wind or water turbine, comprises a three-phase induction machine in which at least one stator windi...
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WO/2008/154380A1 |
Disclosed are foil coil structures and methods for winding the same for stators in electrodynamic machines, as well as electrodynamic machines that implement such coil structures. In one embodiment, a foil coil structure is configured fo...
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WO/2008/153471A1 |
A method for off-line testing of an electric motor, which motor comprises at least one stator winding, and a rotor arranged along a rotation axis is disclosed. The method comprises applying a periodical test signal to the at least one st...
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WO/2008/145487A1 |
The invention relates to a rotor of an electrical machine, having a rotor body (1) and a pulse transmitter structure (8), which is associated with the rotor body (1) for detection of the rotation position and/or the rotation speed of the...
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WO/2008/135628A1 |
The invention relates to an axial flux induction electrical machine comprising a frame, a shaft (1) bearing-mounted to the frame, a disc-like rotor (2) supported to the shaft, a stator (4) comprising a stator winding (3) and supported by...
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WO/2008/135532A1 |
The invention relates to an asynchronous motor which can be connected to variable- frequency alternating voltages and can be operated at these alternating voltages with at least two different numbers of poles, comprising a stator with a ...
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WO/2008/130940A1 |
An integrated generator unit is provided to generate electrical energy. One or more integrated generator units are mounted in an enclosure and in communication with a battery to store electrical energy. Each unit has a plurality of rotat...
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WO/2008/111775A2 |
A motor, namely, a motor with minimum loss and improved efficiency is disclosed. More specifically, a motor having enhanced starting torque performance and increased normal operation efficiency is disclosed. In the motor in which a rotor...
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WO/2008/111776A2 |
A motor, namely, a motor with minimum loss and improved efficiency is disclosed. More specifically, a motor having enhanced starting torque performance and increased normal operation efficiency is disclosed. In the motor in which a rotor...
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WO/2008/108519A1 |
A self magnetizing motor and a compressor having the same is configured to require a lower starting voltage and to deliver superior performance. In the self magnetizing motor, a magnetic material on an exterior of the rotor is magnetized...
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WO/2008/081049A1 |
Asynchronous generator with short-circuited rotor, wherein the generator stator is connected to a mains network through a first end of a first winding of a transformer, the mains network is connected to the second end of the first windin...
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