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Patent Searching and Data


Matches 701 - 750 out of 15,982

Document Document Title
WO/2005/034307A1
It is possible to increase the efficiency and output without requiring a complicated manufacturing procedure or increase of the cost. An electromagnetic motor includes: a stator fixed to a rotary shaft; a u-phase coil winding unit, a v-p...  
WO2005006518A3
The invention relates to a ventilator for an alternator-starter, fixed on a rotor (4) with magnetic poles and comprising: a metal insert (13) which is used to fix the ventilator to the rotor; an end shield plate (17) and ventilation blad...  
WO/2005/029680A1
A rotor assembly (1) for an electric machine such as a motor comprises a rotor (3) on a shaft (2) having a bearing (7, 8) at each end portion, the bearings being arranged to rotatably support the rotor and shaft. The assembly further com...  
WO/2005/029685A1
It is possible to provide a brush-less type rotation detector shielding structure capable of reducing the interference of magnetic flux leaking from a rotation transformer to a stator iron core and rotor iron core and suppressing lowerin...  
WO/2005/029687A1
A rotor assembly (1) for an electric machine such as a motor comprises a rotor (3) on a shaft (2) having a bearing (7, 8) at each end portion, the bearings being arranged to rotatably support the rotor and shaft. The assembly further com...  
WO/2005/027323A1
A stator part of a linear motor includes a U-phase coil part (10U), a V-phase coil part (10V), and a W-phase coil part (10W) through which currents with phases different by 120 degrees from one another flow. Each coil part has pairs of a...  
WO/2005/027335A1
A multiphase brushless permanent magnet motor has a stator provided with at least one winding for each phase, the windings permanently connected to each other at a plurality of junctions. A power source is coupled, via controlled motor e...  
WO/2005/025037A1
For example, in a combination of: a rotor (1) having 8 magnetic poles; and a stator (2) having 12 slots and having permeance pulsation components of the same number as the number of the poles of the rotor (1) generating cogging torque on...  
WO/2005/022719A1
A rotating electric machine comprises a stator having a frame (20) where the number of stator slots Ns is equal to 12, and a rotor arranged in the inner space of the stator where the number of rotor poles Np is equal to 8. Stress relaxin...  
WO/2005/020411A1
The invention relates to a reluctance motor (1) comprising a rotor (3) and a stator (6), whereby the rotor (3) has rotor segments (10) that, in free-standing areas, are provided with an essentially rectangular design and have the shape o...  
WO/2005/018071A1
The invention provides a synchronous motor in which the share of space for a coil winding wound on a stator core through a bobbin is improved. A stator core (26) is dividably assembled to the axial opposite sides of a bobbin (29) having ...  
WO/2005/017318A2
A rotating machine has a stator (Figure 3) and a permanent rotor (Figure 6). The stator has magnetic poles (6 and 8) and bobbin winding (10) located between the magnetic poles (6 and 8). The magnetic poles are connected by circular plate...  
WO/2005/011098A2
The present invention provides a highly optimized motor design enabling an increase in torque compared to a similarly sized motor of traditional design. Additionally, the present invention enables motors that provide smooth, ripple free,...  
WO/2005/008862A1
[PROBLEMS] To provide a brush-less motor used in electric devices, a small-size brush motor, and a ring magnet, a yoke-equipped ring magnet, and a brush-less motor capable of simultaneously achieving reduction of cogging torque and high ...  
WO/2005/008880A1
A field winding (1) is connected with an AC power supply, a rotor winding (4) is formed by sequentially connecting unit windings wound uniformly in the circumferential direction of a stator core (5), a lead wire of each unit winding is c...  
WO/2005/008864A1
A steering device (1) for a vehicle, comprising an electric motor (12) for generating steering supporting force. The electric motor (12) further comprises two rotors (18, 19) and a stator (22). The stator (12) further comprises a plurali...  
WO/2005/006518A2
The invention relates to a ventilator for an alternator-starter, fixed on a rotor (4) with magnetic poles and comprising: a metal insert (13) which is used to fix the ventilator to the rotor; an end shield plate (17) and ventilation blad...  
WO/2005/004313A1
The invention relates to a planar direct drive unit comprising a passive unit (1), an active unit (3), a bearing unit, and a position measuring system that is provided with a material measure and a measuring sensor which scans the materi...  
WO/2004/109894A1
The aim of the invention is to reduce the torque ripple of permanent magnet excited synchronous motors (1) having tooth coils (6). For this purpose, the invention provides for constructive means for damping or neutralizing the fifth and/...  
WO/2004/107529A1
It is possible to suppress vibration and noise caused by radial-direction electromagnetic excitation force of an electric motor. In an electric motor (100), a rotor (1) is divided into four rotator pieces (3, 4, 5, 6) with respect to a s...  
WO/2004/107537A1
A system and method for assembling machines using multiple, structurally equivalent components. The characteristics of each component are tested. The tested components are sorted into component classes using the test information. Individ...  
WO/2004/107536A1
A brushless motor has a stator 6, a rotor 7 and a circuit board 4 for controlling rotation of the rotor 7. The stator 6 has iron cores 1 and coils 2 wound around the iron cores. Switching elements 3 for turning on and off electric power ...  
WO/2004/095675A1
The invention relates to a gearing drive unit (10), which can be combined with different plug-in modules (34, 82, 94, 110). The gearing drive unit comprises: an electric drive motor (12) having an armature shaft (16); at least one housin...  
WO/2004/093298A1
A permanent magnet type motor (10) comprising a rotor (30) having permanent magnets arranged in two stages in the axial direction on the outer circumference of a rotor core while being shifted by an electrical stage skew angle Ѳr in the...  
WO/2004/091072A1
The invention relates to an electronically commutated brushless direct current motor which comprises at least one cover for axially closing a motor housing. The aim of the invention is to provide a BLDC motor that can be safely operated ...  
WO/2004/088819A1
The invention relates to a permanent magnetically excited electric machine (10) comprising permanent magnetic poles (12) with alternating polarity, which are disposed across the circumference of the rotor (11) thereof and cooperate with ...  
WO/2004/084402A1
The invention relates to a switching device and, in particular, a device for switching the windings of the stator (3) of an electric motor (1). The inventive device comprises: a system which is used for the absolute coding (4) of the ang...  
WO/2004/083670A1
Disclosed is an actuator unit for an electromechanically actuatable disk brake for motor vehicles, essentially comprising a drive unit (1) or an electric motor, an actuating element (7) which is used to engage one (4) of two friction lin...  
WO/2004/084399A2
System, method and apparatus for commutating a multiphase motor utilizing a single sensor. Commutation is carried out by employing a sensible system which incorporates phase commutating transition attributes. A motor is started by assign...  
WO2004047283A3
The present invention prevents peak noise caused by a resonance frequency, and reduces an overall noise of the system by binding core teeth of a stair of a BLDC motor with a vibration prevention member. To do this, the present invention ...  
WO2004047282A3
The present invention prevents peak noise caused by a resonance frequency, and reduces an overall noise of the system by supporting core teeth of a stator of a BLDC motor with a supporting member. For this, the present invention provides...  
WO/2004/073158A1
A control system for motors, generators and other electric machines that improves machine performance by dynamically adapting to changes. These changes may be in user inputs, machine operating conditions and/or machine operating paramete...  
WO/2004/073146A1
The present invention refers to an electronically commutated single­ phase motor comprising a rotor (2; 202; 302) and a stator (3; 203; 303) with an asymmetrical wound yoke (4; 204; 304) and comprising at least a stator phase (5; 205; 3...  
WO/2004/073155A1
Improved in-wheel, near-wheel and direct-drive electric motors for cars and other vehicles. This motor can be cheaper, lighter, more powerful, more efficient, and more reliable than other direct-drive motors. Its high torque-density and ...  
WO/2004/070917A1
The invention relates to an electrical machine comprising a rotor (2), a stator (4) and a permanent magnetic element (3), which is fixed to the rotor (2) or to the stator (4). The permanent magnetic element (3) delimits an air gap (7) be...  
WO/2004/070921A1
The invention relates to a polyphase motor consisting of a primary part with N grooves, m electric phases and a concentrated or distributed winding, in addition to a secondary part (1) comprising magnetic poles (2). The invention is char...  
WO/2004/068695A1
A description is given of an electric motor (1) for driving members that rotate at speeds of greater than 40,000 revolutions per minute, comprising a stator (2) housing induction coils (3i), a rotor (4) supporting multiple permanent magn...  
WO/2004/064226A1
A method of determining magnet pole geometry for controlling cogging in an electric motor includes defining the magnet pole geometry in terms of at least one design parameter, predicting cogging as a function of the design parameter, and...  
WO/2004/051824A1
The invention relates to an electric machine, in particular a brushless synchronous motor comprising a stator (14) and a rotor (12), with salient poles (18) distributed around the periphery, each pole having an integrated permanent magne...  
WO/2004/049541A1
Let (Ѳ0) be the angle formed between the end on the magnetic pole center side of a magnetic flux barrier (22) and the end of an adjacent magnetic flux barrier (22) on the side contacting a rib 23 with respect to the rotor center, f be t...  
WO/2004/047283A2
The present invention prevents peak noise caused by a resonance frequency, and reduces an overall noise of the system by binding core teeth of a stair of a BLDC motor with a vibration prevention member. To do this, the present invention ...  
WO/2004/047282A2
The present invention prevents peak noise caused by a resonance frequency, and reduces an overall noise of the system by supporting core teeth of a stator of a BLDC motor with a supporting member. For this, the present invention provides...  
WO2004021550A3
The electric machine (M) comprises an armature (A) and an inductor (B), the inductor (B) having for each pair of poles (N, S) of the armature (A), n teeth (20) identical to one another and n slots (21) and being provided with a winding (...  
WO/2004/040734A1
An electric power steering device where auxiliary steering torque generated by a brushless motor corresponding to steering torque applied to a steering wheel is transmitted with a reduced speed to an output shaft of a steering mechanism....  
WO/2004/034555A1
The invention relates to a sensor assembly for detecting rotation-related variables of a motor, in particular a windscreen-wiper motor, comprising a stationary Hall sensor. According to the invention, the motor is controlled or regulated...  
WO2003065546A3
An electric motor (10) is disclosed, the motor (10) comprising a plurality of rotors (12) and a plurality of stators (14). Each rotor (12) has a drive shaft (16) mounted in bearings (18) and a pinion gear (20) is mounted on each shaft (1...  
WO2003094324A3
The invention relates to a BLDC motor subassembly comprising a stator coil device and a motor shaft which is rotatably mounted in relation to said stator coil device and which is coupled to a rotor magnet stack in a rotationally fixed ma...  
WO/2004/025812A1
An assembly for receiving and accommodating the power electronics and control electronics of an electric motor comprises: a first printed circuit board (11) that is fitted with control electronics components (12a, 12b, 12c); a second pri...  
WO2003085805A3
A rotating electric machine comprising a stator having a first group of windings; a power source for selectively energizing the first group of windings; and a rotor having a first permanent magnet to be magnetically coupled with said fir...  
WO/2004/021550A2
The electric machine (M) comprises an armature (A) and an inductor (B), the inductor (B) having for each pair of poles (N, S) of the armature (A), n teeth (20) identical to one another and n slots (21) and being provided with a winding (...  

Matches 701 - 750 out of 15,982