Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 651 - 700 out of 10,720

Document Document Title
WO2004025811A3  
WO/2004/093307A2
A rotor assembly (figure 4) for a reluctance machine including end holders (32) with recesses (33) for holding the magnetic layers (31). The spaces (30) between the magnetic layers may be left empty or filled with non-magnetic material.  
WO/2004/086593A1
The present invention relates to a kind of magnetic biashing reluctance motor with even poles on which coils are connected in opposite directions, comprising a housing, a stator and a rotor, characterized in that the stator is provided w...  
WO/2004/086594A1
This invention relates to a star delta connection bias magnetic type reluctance motor, it includes housing, stator and rotor its character is stator has driving windings and bias magnetic windings, and the driving windings is star connec...  
WO/2004/084375A2
A two-phase switched reluctance motor includes a stator (311) made of ferromagnetic material with stator poles and a rotor (312) made of ferromagnetic material with rotor poles. There are two-phase windings (301-306) on the stator poles....  
WO/2004/084386A1
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a motor mode or an generator mode. The machine includes a main rotor that is selectively configurable as an M-pole rotor or an N-pole ro...  
WO/2004/084385A1
The present invention relates to electrically magnetized synchronous machine comprising an electrically magnetized rotor, and electrically supplied stator windings, whereby it further comprises non-linear means, optionally controllable, ...  
WO2004054068A3
The present invention discloses a rotor for a line-start reluctance motor which improves core area efficiency to make flux flow in one direction. The rotor for the line-start reluctance motor includes a core (21) having an axis coupling ...  
WO/2004/079879A2
An alternating current (AC) eletrical motor/generator electrodynamic machine and methods include, according to disclosed embodiments of the invention, providing a wound rotor having a polyphase AC winding and a damper winding. The machin...  
WO/2004/070920A1
The invention relates to electromechanical engineering, in particular to the structural design of polyphase alternating current machines, mainly to increased specific power generators which produce current in an extended frequency range....  
WO/2004/070922A1
A claw-pole type generator (100) comprising a permanent magnet (101), two stator yokes (102L, 102R), a core yoke (103), and a coil (104), wherein the core yoke (103) comprises a pair of first semicylindrical split pieces (30) formed by s...  
WO/2004/070913A2
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 main stator that is selectively configurable as a multi-pole AC stator a...  
WO2002089291A3
The principle design of electrical machines with a winding construction based on pole shoes has not changed in decades. The machines have, depending on whether they operate as a generator or motor, a limited efficiency or a limited torqu...  
WO/2004/055959A1
The invention relates to a double-fed asynchronous machine that is devoid of a slip ring. Said machine comprises a main machine (4) with three-phase windings in the main rotor (32) and main stator (34) and an inducer machine (6) with a d...  
WO/2004/055960A1
A rotating electrical machine, such as an aircraft starter-generator, includes an exciter that has its stator windings divided into a number of sections. A plurality of switches are electrically coupled to the exciter stator winding sect...  
WO/2004/055967A1
There is provided a technique for reducing or modifying magnetic noise of an AC rotary electric machine. By using as a reference the basic frequency component of multi-phase AC current flowing to an armature of a multi-phase AC rotary el...  
WO/2004/054068A2
The present invention discloses a rotor for a line-start reluctance motor which improves core area efficiency to make flux flow in one direction. The rotor for the line-start reluctance motor includes a core (21) having an axis coupling ...  
WO/2004/045050A1
In a type of three−phase AC generator for a vehicle having power generating coils of Y−connection, a neutral diode having three connection terminals being connected together electrically is used. Each of the three connection terminal...  
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 (...  
WO2003000017A9
A variable reluctance motor includes a phase assembly (102, 801) having more than one phase unit (121, 122, 123, 821, 822, 823), each of said phase units comprising at least one module (131, 132, 831, 832), each said module comprising an...  
WO2003100957A9
A power converter (500) for a switched reluctance motor or a permanent magnet brushless direct current (dc) motor including first and second partial circuits (553, 554) for forming multiple conduction circuits in cooperation with first a...  
WO/2004/038895A1
A rectifier of an AC generator for a vehicle in which electrical and mechanical coupling of a positive electrode side heat sink and an output terminal member can be made more reliably. The invention comprises an AC generator having a sta...  
WO2003100956A9
A method for identifying an operational phase of a motor (203) may include obtaining a first value of a signal that is indicative of the operational phase of the motor (203) and obtaining a second value of the signal after a period of ti...  
WO/2004/038896A1
A generator-motor (100) comprising a control circuit (20) provided on the end face of a motor (50). The control circuit (20) comprises a Zener diode (21), a capacitor (22), a phase U arm (23), a phase V arm (24), and a phase W arm (25). ...  
WO/2004/032309A1
A rotating electric machine for a vehicle such that the reliability of the brush wear limit is improved, the brush wear limit is stably detected, and the detection is displayed. The rotating electric machine comprises a detection termina...  
WO2004017496A3
The invention concerns a rotating electrical machine comprising a stator enclosing a rotor including permanent excitation magnets (20, 24, 26, 30) capable of producing magnetic fluxes, and excitation coils (22, 28), capable of being exci...  
WO2003041243A9
The invention relates to an electrical machine, preferably an alternator (10) for motor vehicles, comprising a rectifier assembly (11a) that is fixed to an end shield (23) of the machine. Said rectifier assembly is cooled by a fan (27) t...  
WO/2004/025811A2
The invention relates to a method and device for detecting spark activity in an electric machine. The shaft voltage (Us(t)) and/or the shaft current (Is(t)) are measured and characteristic components are analyzed in order to detect spark...  
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 (...  
WO2003100948B1
A two-phase switched reluctance motor (fig.4) with a pluraty of rotor poles (404) having asymmetric reluctance (405) about a central raidla axis of the respective rotor pole and a plurality of salient stator poles (402) having the same w...  
WO/2004/017496A2
The invention concerns a rotating electrical machine comprising a stator enclosing a rotor including permanent excitation magnets (20, 24, 26, 30) capable of producing magnetic fluxes, and excitation coils (22, 28), capable of being exci...  
WO2003100957A3
A power converter (500) for a switched reluctance motor or a permanent magnet brushless direct current (dc) motor including first and second partial circuits (553, 554) for forming multiple conduction circuits in cooperation with first a...  
WO2003050933A3
The invention concerns a alternator comprising a stator (12), a rotor (4) arranged inside the stator (12) including several phases and at least two armature windings which belong each to a power supply source mounted between the ground a...  
WO/2003/100944A1
A rotor for an electrical motor (100) may include a plurality of salient radial field rotor poles (109) and a plurality of salient axial field rotor poles (110). The radial field rotor poles (109) and the axial field rotor poles (110) ar...  
WO/2003/100957A2
A power converter (500) for a switched reluctance motor or a permanent magnet brushless direct current (dc) motor including first and second partial circuits (553, 554) for forming multiple conduction circuits in cooperation with first a...  
WO/2003/100948A1
A two-phase switched reluctance motor (fig.4) with a pluraty of rotor poles (404) having asymmetric reluctance (405) about a central raidla axis of the respective rotor pole and a plurality of salient stator poles (402) having the same w...  
WO/2003/100956A1
A method for identifying an operational phase of a motor (203) may include obtaining a first value of a signal that is indicative of the operational phase of the motor (203) and obtaining a second value of the signal after a period of ti...  
WO/2003/100958A1
A power converter for a switched reluctance motor (SRM) or a permanent magnet brushless direct current (dc) motor (PMBDCM) that includes a front-end boost partial circuit (551) for connecting with a first phase winding of the motor (552)...  
WO2003066262A3
A method of assembling a power tool, a power tool, a method of assembling an electrical device (100), and an electrical device (100) includes a switched reluctance motor (10). The electrical device is preferably a hand-held power tool, h...  
WO/2003/094326A1
An electric motor for operation at very high speeds comprises a ferromagnetic stator (11), a ferromagnetic rotor (13) having a rotor core (16) with a plurality of reluctance poles (17) spaced from the stator by an air gap (G), and a roto...  
WO/2003/084026A1
The invention relates to a regulator and a rectifier for an electric machine, especially a rotary current generator for motor vehicles, whereby the regulator (13) and the rectifier (16) are embodied as a single module (10).  
WO/2003/075438A1
An AC electric machine for vehicle comprises an AC electric machine body (100) having a rotor (10) provided with a first rotary shaft (12) rotatably supported by a pair of bearings (16 and 17), a rotor core (8) fixed to the first rotary ...  
WO/2003/073590A1
The invention relates to a variable-reluctance electric generator in which both the induction coils (3) and the induced coils (8) are located in the stator. The rotor (6), which rotates around the axis (6) thereof, is formed by groups of...  
WO2003047067A3
A motor/alternator is formed by a single toroidal magnet (2), which may be a hybrid magnet including a permanent magnet (12) and an electromagnet (14) concentrically arranged, having flux conductors (4, 6) which, in combination with flux...  
WO/2003/066262A2
A method of assembling a power tool, a power tool, a method of assembling an electrical device (100), and an electrical device (100) includes a switched reluctance motor (10). The electrical device is preferably a hand-held power tool, h...  
WO/2003/058794A1
Permanent magnet machines including doubly salient machines having one or more permanent magnets located at least partly and preferably entirely within the stator teeth, thereby avoiding weakening of the stator structure while reducing a...  
WO/2003/050933A2
The invention concerns a alternator comprising a stator (12), a rotor (4) arranged inside the stator (12) including several phases and at least two armature windings which belong each to a power supply source mounted between the ground a...  
WO/2003/049273A1
In the embodiments described in the specification, a permanent magnet machine (10) includes a stator (14) having windings (16) which intercept flux received from peripheral pole pieces (20) in a rotor (12) generated by permanent magnets ...  
WO/2003/047067A2
A motor/alternator is formed by a single toroidal magnet (2), which may be a hybrid magnet including a permanent magnet (12) and an electromagnet (14) concentrically arranged, having flux conductors (4, 6) which, in combination with flux...  
WO/2003/044927A1
The invention relates to an electrical machine having a first magnetic core provided with winding, and a flux-generating device comprising at least two flux-generating variable magnetic flux elements. These are arranged to vary the flux ...  

Matches 651 - 700 out of 10,720