Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 301 - 350 out of 13,860

Document Document Title
WO/2008/080650A1
The invention relates to an electric machine, especially an electric motor of a wiper drive of a vehicle. Said machine comprises a stator having poles with pole pieces that extend in the longitudinal direction of the machine, an armature...  
WO/2008/077337A1
A rotor and a stator of an inner rotor stacked permanent magnet coreless brushless motor do not comprise a silicon steel plate. The rotor is provided inside the motor, and the rotor is formed by stacking two or more permanent magnet plat...  
WO/2008/077286A1
A Nd-Fe-B DC motor includes a housing (2), an end cap (1), a cylindrical magnetic shoe (3), a rotor assembly (4), carbon brushes (5) and a circuit board (6). The rotor assembly (4) includes a rotor (41), armature windings (42), commutato...  
WO/2008/074954A1
The invention relates to a DC electric rotating machine mainly for the starter of an automotive vehicle, said machine including: a stator having a magnetised structure with permanent magnetisation and extending along the circumference of...  
WO/2008/075667A1
Provided is a miniature motor, in which a rotor magnetic-pole laminated core is constituted by laminating each of two-side steel sheet cores bent at its radial end portions outward of a shaft axis, on the two sides of steel sheet cores o...  
WO/2008/065647A1
There is provided a self torque-balancing differential mechanism (2), including two coaxial counter- rotating wheels (4, 6), rotatable about a central shaft (24), mutually reacting and balancing a torque of a motor drive (20) interacting...  
WO/2008/062791A1
An armature of a DC motor with a brush comprises a rotary shaft born by a yoke housing, an armature core fitted on the rotary shaft from outside and secured to the same, and a commutator provided to the rotary shaft adjacently to the arm...  
WO/2008/056243A2
Described is a direct current motor (1) with permanent magnet stator, having at least four stator poles (5, 6, 7, 8) which are spaced at equal angular intervals about the rotation axis (A) of the rotor (3) and which generate a magnetic f...  
WO/2008/053829A1
A DC motor armature (3) is an 8-pole, 10-slot, 20-segment type or a 12-pole, 15-slot, 30-segment type. A commutator has a connection line (25) arranged for making a shortcircuit between the segments (14) having the same potential. A wind...  
WO/2008/039081A2
An electric motor or generator consists of a stator carrying pole pieces and their coacting coils, the stator being surrounded on one side by the field creating permanent magnets adjacent one face of the poles and on the other by a flux ...  
WO/2008/031686A1
The present invention relates to a DC motor with a first brush, a second brush, which is offset with respect thereto through 180°/p, where p=pole pair number and via which the electric motor is operated in a first rotation speed stage, ...  
WO/2008/025829A1
The invention relates to a current overload protection of a brush apparatus of an electrical machine, in particular a starter of an internal combustion engine, with at least one fuse apparatus, which is used for supplying current to the ...  
WO/2006/116553A3
A clip for a motor stator housing to engage at least a first magnet and at least a second magnet of the motor stator includes a generally annular plate having an outer circumferential edge and an inner side. A plurality of outer tabs are...  
WO/2008/017618A1
The invention relates to an electrical machine (10) with at least eight exciter poles (P) in the stator (11) and with a commutator armature (13), comprising numerous pole teeth (Z), differing from the number of exciter poles and the pole...  
WO/2008/003598A1
The invention relates to an electric motor comprising a number n of poles (4a - 4d), where n is even and greater than 2 and a number m of brushes (1, 2), where 2 ≤ m ≤n. Said motor is equipped with a number r of additional brushes (3...  
WO/2007/044930A3
A motor control module 100 designed to control operation of a plurality of different motors in a plurality of different tools. A power tool may be integrated with a switch. The control module may use an electronic clutch in the module 10...  
WO/2007/143570A2
The present invention provides systems and methods for power factor control of a motor. A phase detector uses a line voltage of a power supply and a motor terminal voltage of a motor. The output of the phase detector is synchronized to a...  
WO/2007/137989A1
The invention relates to an electrical machine (1) with a stator (3) that comprises a number of pole shoes (8) separated from one another and a number of permanent magnets (9) correlated with the pole shoes (8), and with a rotor (2) rota...  
WO/2007/115907A3
The invention relates to a drive and evaluation unit for displacing a displacement object, particularly for raising and lowering a side window in a motor vehicle, comprising a commutator motor, a stator and two diametrically opposed perm...  
WO/2007/041387A3
An electrically commutated motor (100) includes a first module (412) to measure a current in a coil of the motor (100), and a second module (412) to adjust timing of commutation of the motor (100) based on the current measurement.  
WO/2007/122767A1
[PROBLEMS] To provide a DC motor in which the wear resistance of first brushes is enhanced with excellent control response since the contact area of the first brushes is increased without increasing the size of a disk having a commutator...  
WO/2007/115907A2
The invention relates to a drive and evaluation unit for displacing a displacement object, particularly for raising and lowering a side window in a motor vehicle, comprising a commutator motor, a stator and two diametrically opposed perm...  
WO/2007/104591A1
The invention describes an electrical machine comprising an armature (20) with armature slots (25) for accommodating armature coils, wherein at least one armature coil is formed from two coil elements (51, 52), which are arranged symmetr...  
WO/2007/104976A1
The invention relates to a generator, to a magnetic flux conducting unit for a generator, and to a power generation machine comprising such a generator. In an embodiment of the invention, a generator (412) is disclosed which comprises at...  
WO/2007/098220A2
A permanent magnet, DC motor especially well adapted for use in power tools, and particularly hand-held, battery powered power tools. The motor includes two sets of armature coils, with each set of coils being coupled to separate sets of...  
WO/2007/094488A1
Provided is a DC motor capable of eliminating a DC current reverse rectification performed in a conventional DC motor and enabling rotation of maximum torque at all rotation angle and having a shape and a function for facilitating a comb...  
WO/2007/088101A1
The invention relates to an electric motor (1) comprising a stator (3), a rotor (2) and a number of permanent magnets (6). The aim of the invention is to permit the use of parallelepipedal permanent magnets (6), without impairing perform...  
WO/2007/087841A1
In a displacement drive (2) of a motor vehicle, having a drive motor (1), which has a motor magnet (7), which produces a magnetic main exciter field (BE), and a motor armature (8), which is arranged rotatably between the magnet poles (7a...  
WO/2006/074442A3
A motor that delivers high force linear motion or high torque rotary motion to a moving element (Figure 5). The motor include a driving brake (504), a driver (502), a holding brake (506) and a flexible moving element (508).  
WO/2007/077359A2
This motor (10) comprises a main casing (12), a brush holder (18) positioned in the main casing (12) and an electrical power supply device (20) secured to the holder (18), comprising an electronic control board. The board has at least on...  
WO/2007/053133A3
An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electro-magnetic interference (EMI). The winding pattern involves winding a first coil Cl into a first pair of ...  
WO/2007/026308A3
A commutation apparatus drives a brushless motor having a stator equipped with a plurality of coils and a rotor. The commutation apparatus comprises a rotatable commutator shaft, two or more conducting rings carried discretely about the ...  
WO/2007/073415A1
A motor is disclosed that operates on either AC outlet power or DC battery power with decreased power drop when switching between AC and DC power. The AC power to the motor may be stepped down by using a clipper circuit, while the DC pow...  
WO/2007/060908A1
In a rotary electric device in which a commutator variable is set to the number of slots multiplied by 2, a coil is wound around an armature so as to obtain a preferable magnetic balance. A first winding (12) electrically connected to an...  
WO/2007/001340A3
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine includes a conventionally wound main stator (124) that is selectively configurable ...  
WO/2007/053133A2
An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electro-magnetic interference (EMI). The winding pattern involves winding a first coil Cl into a first pair of ...  
WO/2007/051681A1
The electric motor has a rotor (1), at least two magnet segments (2, 2’), a magnetic return path ring (3) and a housing (4) consisting of aluminum. The housing (4) has at least one helical projection (4’) on its outer side parallel t...  
WO/2007/044680A2
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 surfac...  
WO/2007/039341A1
The invention relates to an electric motor (10) and to a method for producing said electric motor, especially for adjusting mobile parts in a motor vehicle. Said electric motor comprises a collector (36), arranged on an armature (38) and...  
WO/2007/037141A1
An electric motor in which a power supply device and a rotation detection device that are installed in a motor case are connected to a control device via a connector section. This facilitates assembly of the electric motor. A power windo...  
WO/2005/114782A3
Electric motor components are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive...  
WO/2007/026308A2
A commutation apparatus drives a brushless motor having a stator equipped with a plurality of coils and a rotor. The commutation apparatus comprises a rotatable commutator shaft, two or more conducting rings carried discretely about the ...  
WO/2007/025060A2
A Radio Frequency Identification (RFID) tag using multiple microradios and inkjet printing techniques together with a method and system for manufacturing and applying the tag to an end item are disclosed.  
WO/2007/019700A1
A continuous direct current generator comprises a plurality of windings, each being adapted to rotate between two magnetic fields and in unison with a rotator having a plurality of brush contacts. The windings are electrically connected ...  
WO/2007/018128A1
A DC machine with a brush of which the commutation characteristics are improved and the lifetime is prolonged. As shown on Fig. 2, a reduced flux density portion is formed in the pole section of an anisotropic bond magnet. Since the redu...  
WO/2007/015499A1
Windings (M1 to M8) are wound by concentrated winding around teeth (T1 to T8) of an armature core (107, 317) to which insulators (X, Y) are attached. A feeding member (108, 314) for feeding current to the windings (M1 to M8) has a connec...  
WO/2007/006271A1
The invention relates to a resistor component (16, 36) for an electric machine, comprising at least one resistor (1, 21) and insulation material (5, 23, 25). According to the invention, the resistor (1, 21) is surrounded by the insulatio...  
WO/2006/074214A3
An electric motor includes a rotation shaft (10) and an armature coupled to the rotation shaft. A commutator (25) is coupled to t rotation shaft and is electrically connected to the armature. At least two power brushes (40) are fixed rel...  
WO/2007/001340A2
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine includes a conventionally wound main stator (124) that is selectively configurable ...  
WO/2005/027306A3
An electric motor, power tool using the electric motor, and method of making the electric motor includes making a stator by separately forming pole pieces (314), return path pieces (306) and field coils (304). The field coils are placed ...  

Matches 301 - 350 out of 13,860