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Class 310/266 - Hollow (e.g., double air gap)


Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter relating to hollow armatures.
No. of applications: 65
Last issue date: 11/19/2009


1    
Application No.Application TitleIssue Date
20090284086SYSTEMS AND APPARATUS INVOLVING TOOTHED ARMATURES IN SUPERCONDUCTING MACHINES
A system for generating power comprising, a superconducting generator including, an armature assembly comprising, a body portion, a tooth portion having a front surface and a rear surface, a slot partially defined by the body portion and the tooth portion, an armature b...
11/19/2009
20090031555Rotor to Stator Temporary Interconnection Element for Bearingless Electric Machine
A temporary interconnection element to be installed between the rotor and the stator of a bearingless electric machine, for example during its transport, storage or assembly is described herein. The interconnection element is so designed that the rotor may be secured to...
02/05/2009
20080238236SWITCHED RELUCTANCE MACHINE
A switched reluctance machine is provided. The switched reluctance machine has a rotor including a rotor core, where the rotor core includes multiple laminated sheets, each of the laminated sheets including multiple ferromagnetic regions and multiple non-ferromagnetic r...
10/02/2008
20080174194Double-Sided Starter/Generator for Aircrafts
An electromagnetic machine for extracting power from a turbine engine includes an outer rotor and an inner rotor rotatably supported adjacent to a stator. The stator is disposed between the inner and outer rotors. The stator has an inner set of windings disposed on an i...
07/24/2008
20080088200POLY-PHASIC MULTI-COIL GENERATOR
A polyphasic multi-coil generator includes a driveshaft, at least first and second rotors rigidly mounted on the driveshaft so as to simultaneously synchronously rotate with rotation of the driveshaft, and at least one stator sandwiched between the first and second roto...
04/17/2008
20080036330Electric motor
[Object] To provide an electric motor which is capable of enhancing the efficiency thereof.

[Solution] An electric motor 1 includes a plurality of first electromagnets 4a, armatures 5a, second electromagn...

02/14/2008
20080024034Coreless and brushless direct-current motor, Gifford McMahon (GM) cryogenic cooler, pulse tube cryogenic cooler, cryopump, Magnetic Resonance Imaging (MRI) apparatus, Superconducting Magnet (SCM) apparatus, Nuclear Magnetic Resonance (NMR) apparatus, and cryogenic cooler for cooling semiconductor
A coreless and brushless direct-current motor includes an armature coil wound without core and formed in the shape of a saddle; an outside rotor magnet formed by a permanent magnet, the outside rotor magnet being provided at an outside of the armature coil in the shape ...
01/31/2008
20070296299ELECTRICAL MACHINE WITH IMPROVED WINDINGS
This document discusses, among other things, a stator with transposition between the windings or coils. The coils are free from transposition to increase the fill factor of the stator slots. The transposition at the end connections between an inner coil and an outer coi...
12/27/2007
20070290563BRUSHLESS MOTOR WITH DOUBLE ROTORS
It is a type of brushless motor with double rotors which is composed of one inside motor with radial-vertical permanent magnetic circuit and one outside motor with magnetic excitation circuit. The inside motor is made up of the input shaft, the inner rotor core, the per...
12/20/2007
20070262673Bell-armature coil
In at least one embodiment of the present invention a bell-armature coil for an electric motor is provided. The bell-armature coil comprises a hollow-cylindrical coil winding which forms a coil opening at one end and is wound from a winding wire. The bell-armature coil ...
11/15/2007
20070236099Method of making integrated stator, brushless direct-current motor of radial core type double rotor structure using the integrated stator, and method of making the same
Provided are a radial core type brushless direct-current (BLDC) motor and a method of making the same, having an excellent assembly capability of division type stator cores in a double rotor structure BLDC motor. The BLDC motor includes a rotational shaft, an integrated...
10/11/2007
20070236095Electric motor apparatus
A DC electric motor apparatus includes a stationary magnet set which includes an outer, hollow-cylindrical stationary magnet set portion and an inner, solid-cylindrical stationary magnet set portion centrally located inside the outer, hollow-cylindrical stationary magne...
10/11/2007
20070228864Wave Winding Armature
An armature for an electromotive device having a unitary coil and armature is disclosed. The armature may include a coil having inner and outer wave winding portions separated by an insulator, each of the wave winding portions comprising a plurality of sheet metal condu...
10/04/2007
20070216248HYBRID INDUCTION MOTOR
A hybrid induction motor includes a motor casing; a rotational shaft rotatably coupled with the motor casing; an induction rotor rotated by being integrally coupled with the rotational shaft and having a rotor core and a conductor bar inserted in the rotor core; a stato...
09/20/2007
20070210666ELECTRIC ROTATING MACHINE
The electric rotating machine includes a fixed stator fixed to the inner circumferential side of a housing, a moving stator rotatably supported on the inner circumferential side of the housing, a rotor disposed concentrically on the inner circumferential side of the fix...
09/13/2007
20070210657Brushless DC motors and systems using the same
A system comprising a brushless DC motor is disclosed. The system may include a rotor assembly and a stator assembly. The rotor assembly may include: a first permanent magnet having a first ring shape and generating a first magnetic field; a rotor shaft coupled to the f...
09/13/2007
20070205682Dual Rotor Type Motor
Abstract: A dual rotor type motor of the present invention is disclosed. The dual rotor type motor according to the present invention includes a shaft rotatably provided in a motor securing part; a rotor assembly rotated with a center thereof fastened to the shaft, the ...
09/06/2007
20070205684Electric Motor
This electric motor is provided with: an inner periphery side rotor provided with inner peripheral permanent magnets with unlike poles, which are disposed alternately along a circumferential direction; an outer periphery side rotor provided with outer peripheral permane...
09/06/2007
20070205683Electric motor
This electric motor is provided with an inner periphery side rotor, an outer periphery side rotor, and a rotating device that can change a relative phase between these rotors by rotating at least one of them about a rotational axis thereof. The rotating device is provid...
09/06/2007
20070200452BRUSHLESS MOTOR
A brushless motor with a rotor having a magnet and a magnetic return, the magnet and magnetic return being arranged to form a gap therebetween, and a stator having a coil disposed in the gap. It is emphasized that this abstract is provided to comply with the rules requi...
08/30/2007
20070176497SYSTEM AND METHOD TO CONTROL A ROTARY-LINEAR ACTUATOR
A system and method are disclosed for controlling an integrated rotary-linear actuator system that may be coupled to a network via a network interface. The integrated rotary-linear actuator system includes a control system and a rotary-linear actuator having a moveable ...
08/02/2007
20070164628Electric transmission for transmitting mechanical power, in particular for a motor vehicle transmission
An electric transmission, in particular for a motor vehicle, including two electric motors, whereby the shaft of one of the electric motors is connected to a mechanical energy source, the motor converts mechanical energy into electrical energy, the other electric motor ...
07/19/2007
20070108865ELECTRICAL MACHINE WITH DOUBLE-SIDED STATOR
A machine useful for ship propulsion purposes includes a ship propulsion motor with two concentric air gaps. In one embodiment, the machine includes a rotor with an inner rotor core and an outer rotor core; and a double-sided stator with an inner stator side and an oute...
05/17/2007
20070103027ELECTRICAL MACHINE WITH DOUBLE-SIDED LAMINATION STACK
The machine includes a rotor with an inner rotor core and an outer rotor core and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the wi...
05/10/2007
20070096574Electromagnetic coupler
An electromagnetic coupler for a motor vehicle. The coupler includes a first electric machine having an axis and including a first stator bearing a first coil, an input rotor and a first part of an output rotor, and a second electric machine including a second stator be...
05/03/2007
20070075593Motor modules for linear and rotary motors
A motor module, method, apparatus and system for implementing linear and rotary motors, such as relatively large rotary motors, are disclosed. In one embodiment, an electrodynamic machine can include magnets having angled magnetic surfaces and regions of predetermined m...
04/05/2007
20070057593Power generating system
A small power generating system includes a turbine driven by a fluid, a power generator including a permanent magnet rotor having a permanent magnet and rotated together with the turbine and a plurality of stator coils each of which is comprised of a coreless coil, the ...
03/15/2007
20070052314Structure of generator/motor
This invention is directed to an apparatus of “structure of generator/motor”, primary consists of at least a pair of magnetic component and corresponding coil set, and characterized by: the magnetic poles with different magnetism connected with an appropriate type o...
03/08/2007
20070024132Methods and apparatus for cooling wind turbine generators
A wind turbine generator includes a stator having a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis. A rotor is rotatable about the generator longitudinal axis, and the rotor includes a plurality of magnetic elements ...
02/01/2007
20060284509Induction motor
An induction motor includes: a stator in which a plurality of winding coils wound in a central direction of a stator core are arranged; an induction rotor rotatably inserted into the stator; and a synchronous rotor including a magnet and rotatably inserted into an air g...
12/21/2006
20060273686Hub motors
The present invention discloses small compact motor systems which may be located inside a vehicle drive wheel, and which allow a drive motor to provide the necessary torque with reasonable system mass. The motor systems of the invention utilize polyphase electric motors...
12/07/2006
20060244338Vertical stator double gas d.c. PM motors
A vertical stator d.c. PM motor employs outer and inner working air gaps wherein the length of the inner working gap at any stator pole is greater than the corresponding length at the outer working gap. A mutual cancellation of detent torque between the outer and inner ...
11/02/2006
20060238064Flat radially interacting electric drive and a method of the manufacturing the same
A flat radially interacting electric drive comprises a flat stator, an axle and a magnetized flat rotor. The flat stator comprises a stator core made of silicon steel and placed within two layers of circuit boards. The circuit boards layers comprise circumferentially ar...
10/26/2006
20060226722Hybrid induction motor
A hybrid induction motor comprises a stator fixedly installed in a casing, an induction rotor rotatably inserted into a center of the stator and having a shaft at a center thereof, a first synchronous rotor free-rotatably installed between the stator and the induction r...
10/12/2006
20060226721SATURATION CONTROL OF ELECTRIC MACHINE
The invention includes an electric alternator/motor having a rotor, stator and at least one winding in the stator adapted to conduct a current, the machine also having and first and second magnetic circuits one of which includes a saturable portion in which saturation m...
10/12/2006
20060220491BRUSHLESS MOTOR STATOR, BRUSHLESS MOTOR HAVING SAME AND COIL STRUCTURE
A brushless motor stator comprising a lamination body in which conductive layers and insulating layers are formed alternately. A plurality of sets of coils of wound conductive patterns are formed on each conductive layer and the coils of the conductive layers adjoined v...
10/05/2006
20060214526Rotating electric machine
A variable-speed rotating electric machine includes at least two armatures having respective armature coils for multiple phases, and a rotor having permanent magnets. The armatures are arranged concentrically with each other in such a manner that electrical angular posi...
09/28/2006
20060138879Electric wheel
The rotor of the outer-rotor type wheel-in motor of the electric wheel includes a field generator facing the outer surface of the stator across from an electrical gap. The field generator includes pole magnets magnetized in the radial direction with respect to the rotat...
06/29/2006
20060131985Electrical machines and assemblies including a yokeless stator with modular lamination stacks
An electrical machine includes a rotor with an inner rotor portion and an outer rotor portion, and a double-sided yokeless stator. The yokeless stator includes modular lamination stacks and is configured for radial magnetic flux flow. The double-sided yokeless stator is...
06/22/2006
20060108728Method and cradle to handle a stator bar
A cradle for a stator bar including: a platform having a length extending at least two-thirds the stator bar; a plurality of clamps arranged along the length of the platform and at least one end turn gripper at each end turn of the stator bar, wherein the end turn clamp...
05/25/2006
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