Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 851 - 900 out of 16,049

Document Document Title
WO/2003/015239A1
A travel motor used for vehicles comprises a stator, a rotor, and a housing holding them, the rotor having a support member for preventing a rotor magnet from separating from a steel sheet lamination, the steel sheet lamination having a ...  
WO2001076044B1
The invention relates to a method for controlling a reluctance motor comprising a rotor (1) and a stator (10) which is provided with individual stator coils (22). A predefined current flows in the coils (22) according to the load of the ...  
WO/2003/009453A1
The invention concerns a polyphase motor (1) consisting of a fixed part or stator (2) energized by electric coils (3) and a mobile part or stator (4) including N pairs of poles (5) radially magnetised in alternate directions, N being not...  
WO/2003/005530A2
An integrated position resolver for hybrid synchronous electric motors. The present invention represents new improved integrated position resolver for hybrid synchronous electric motors which uses the magnetic flux of the motor also for ...  
WO/2003/005537A1
An electric motor has a stator and a roto. The stator (1) comprises an annular armature (5) having a plurality of poles (7) evenly spaced about the inner circumferential surface of the armature (5) and directed towards a central longitud...  
WO/2003/003547A1
A brushless DC electric motor (Figures 1A and 3) includes a magnetic rotor (5) and a stator (1). The stator (1) has at least one circuit board (3) with circumferentially arrayed of coil windings (2) etched in circuit board metal layers.  
WO/2003/001216A1
The invention relates to a device for generation of a signal dependent on rotational speed, or a tachogenerator, comprising several magnet elements of alternating polarity, arranged as a distribution around the circumference of the rotor...  
WO2002078151A3
An electric machine (M) comprises an armature (A) and an armature (B) between which is defined an air gap (G). The field (A) has at least one pair of oles (N, S) and the inductor (B) has n teeth (20) and n slots (21) per pair of poles (N...  
WO/2003/001650A1
The invention relates to a flange for an electric motor, in particular an electronically-commutated DC motor, which encloses the motor on the front face thereof and which at least partly extends over a wound stator on the electric motor....  
WO/2003/001646A1
The invention relates to a relay support device for an electric motor for the arrangement of a number of relays on a front face of an electric motor, on which winding connectors and signal lines for the electric motor are provided. The r...  
WO/2003/001647A1
The invention relates to a housing cover (48) for an electric motor (10), for closing a motor housing (22) on a front face of the electric motor, on which the winding connectors and signal lines for the electric motor are provided. Said ...  
WO/2003/001652A1
The invention relates to an electronic control device for window openers and other motor-activated mechanisms. The inventive device comprises a motor (2) having no magnetic field sensors close to the magnetic ring thereof (8). Said devic...  
WO/2002/095903A1
The invention relates to a brushless DC drive, comprising a synchronous motor (10), with a stator (12) supporting a multi-phase stator winding (15), a rotor (13), fitted with permanent magnet poles (20) and a switching device (11), fitte...  
WO/2002/095904A1
A magnetic levitation motor for rotating a rotor as levitated above a stator by a DC magnetic field and a stator winding. This motor comprises a DC magnetic field generating means (4) for generating a radial flux around the axis inside a...  
WO2002015200A3
The winding arrangement contains a multilayered winding body (91) consisting of a plurality of windings associated with a winding band (93) and an optical wave guide (30) which passes through the winding body (91) or is introduced into t...  
WO/2002/093112A1
The position sensor signal of an actuator of the type having a built-in drive circuit includes the switching current flowing through the coil in the actuator. According to the invention, a sensor circuit that performs sampling synchronou...  
WO/2002/093713A2
A brushless motor with a rotor (61, 62) having a magnet (65) and a magnetic return (61), the magnet (65) and magnetic return (61) being arranged to form a gap (120) therebetween, and a stator having a coil (47) disposed in the gap (120).  
WO2002060740A3
An electric power steering system for a vehicle includes a steering wheel (16) and a steering shaft (20) that is connected to the steering wheel. A worm gear (26) is connected to the steering shaft (20). A worm (28) is threadably engaged...  
WO/2002/089304A2
A rotor position sensor mounting system includes a sensor assembly (14) fixedly engaged with a stator assembly (14). The stator assembly (14) includes a plurality of stator laminations (28) including a plurality of sections (104, 120) se...  
WO/2002/086324A2
A multi-stage centrifugal compressor with an integral high-speed motor compressing a stator (52), a rotor (28) carrying permanent magnets (72a-72d), wherein there is a gap (50) between the stator (52) and the rotor (28). The rotor (28) h...  
WO/2002/084849A1
The invention relates to a method and device for determining the rotational position of an electric induction machine (1), which can be commutated in an electronic manner. The inventive device comprises a rotor support (12), which accomm...  
WO2002037643A3
A permanent magnet electric machine includes a stator with salient stator poles. A rotor (16) includes two or more axial rotor sections (72,74) that are rotationally offset by an offset angle equal to the cogging angle divided by the num...  
WO/2002/078151A2
An electric machine (M) comprises a field (A) and an armature (B) between which is defined an air gap (G). The field (A) has at least one pair of poles (N, S) and the armature (B) has n teeth (20) and n slots (21) per pair of poles (N, S...  
WO/2002/075904A1
A vacuum position detecting method in vacuum motor in which the degree of freedom can be increased in the design of motor without sacrifice in reliability, and a thin lightweight vacuum position detector which can detect the absolute ang...  
WO/2002/073788A1
A magnetic motor of no through-current, high-output torque, stable rotation, and high motor efficiency. A magnetic motor comprising rotors (4, 5) provided with a permanent magnet (12) and rotatable around a rotation axis, a magnetic sens...  
WO/2002/073780A1
A low-noise permanent magnet type rotary machine and a compressor of comprising it. A tooth (8) of a stator core (5) keeps the tip shaped into an arc concentric with the rotor core (3) in the tooth center side, and shaped into a straight...  
WO/2002/073216A1
The invention relates to an electric micromotor (1) comprising at least one shaft (3). The aim of the invention is to facilitate control and regulation. To this end, at least one identifying mark (4) is applied to the shaft.  
WO2001076044A3
The invention relates to a method for controlling a reluctance motor comprising a rotor (1) and a stator (10) which is provided with individual stator coils (22). A predefined current flows in the coils (22) according to the load of the ...  
WO/2002/063745A2
A system and method is disclosed for the construction of a frameless cartridge motor (Fig.1). In accordance with one embodiment of the present invention a frameless cartridge motor (Fig.1) is provided such that the motor's rotor (18) is ...  
WO/2002/060740A2
An electric power steering system for a vehicle includes a steering wheel (16) and a steering shaft (20) that is connected to the steering wheel. A worm gear (26) is connected to the steering shaft (20). A worm (28) is threadably engaged...  
WO2001033698A9
A fluid-cooled switched reluctance motor comprising a stator (50)having a plurality of evenly spaced, radially oriented, like stator poles that define a gap (58) between adjacent stator poles (56). The stator poles have side walls (56a) ...  
WO2001002724A9
A blood pump (500) preferably has a magnetically suspended rotor (502) that rotates within a housing (506). The rotor (502) may rotate about a stator (504) disposed within the housing. Radial magnetic bearings (560) may be defined within...  
WO/2002/052700A1
In order to fit a motor (12) in a housing (16) for an adjustment element, the motor (12) needs to be only axially introduced into a pot-shaped holding receiver (17). Said receiver (17) is then covered on the drive side by means of an ass...  
WO/2002/050975A2
Brushless electric machines that are operated with slotted armatures (laminated stator core) in which the stator tooth number Z is a multiple of the phase number m, in the currentless state, are subject to cogging that is the result of t...  
WO/2002/050983A1
A system and method for controlling a brushless DC motor (58) is provided. The motor (58) includes a rotor (72) and a stator (96) having at least three phases. The rotor (72) is magnetically coupled to and moveable by the stator (96) whe...  
WO/2002/041471A1
A prior art rotor has to be individually produced each time for an electric machine. An inventive rotor (1) is comprised of modules (7, 8, 9) of the same type of component, which permit the production of different rotors (1) using one ty...  
WO2001059288A3
An integrated brushless DC wet motor pump unit comprises a pump, a motor and a motor controller all contained within a housing. The motor includes a stator having stator coils fixed in relation to the housing and a motor rotor surroundin...  
WO/2002/041476A1
A brushless multiphase AC electric machine suitable for advance energization and its energization controller. In a brushless multiphase AC electric machine comprising a magnetic pole sensor (29) which senses the rotational position of a ...  
WO/2002/037643A2
A permanent magnet electric machine includes a stator with salient stator poles. A rotor (16) includes two or more axial rotor sections (72,74) that are rotationally offset by an offset angle equal to the cogging angle divided by the num...  
WO/2002/035683A1
An electric motor comprising stator (20) having a plurality of annularly equispaced stator salient poles (24), four sets of permanent magnets (12a) disposed with an equal pitch and opposed to the inner peripheral sides of the salient pol...  
WO/2002/033803A2
In torque motors known from the art a non-constant air gap is produced between the rotor and the stator that consist of sheet stacks by complex constructions on the stator. The torque motor (30) according to the invention has an unsymmet...  
WO/2002/033810A1
A multi-phase bipolar brushless D.C. motor having an embedded permanent magnet as a rotor, an armature as a stator and a plurality of windings are sub-wound on the stator in parallel and independently phase-connected. A commutation encod...  
WO/2002/029957A2
An electromagnetic machine includes a rotor having a plurality of poles and a stator also having a plurality of poles. The poles for the rotor are divided into a first and second set of radially opposed pairs. The first set has uniform f...  
WO/2002/028536A1
A reluctance machine (1) includes a stator (20) having an annular support member with a plurality of stator poles (22) disposed thereon. The stator poles each are formed from a corresponding foil coil stator winding (26). A solid disc-sh...  
WO/2002/029959A1
The invention concerns an electric actuator consisting of at least a first P-phase automatically-switched brushless synchronous motor, P being an integer ranging between 1 and 6, and N pairs of poles at the rotor, N being an integer not ...  
WO/2002/027895A1
A brushless motor, wherein a cooling air passage (5) is formed so as not to communicate with a storage chamber (26) having a control circuit (28) stored therein and so that cooling air can be supplied to the outer surface of the storage ...  
WO/2002/025216A1
A small, lightweight and easy-to-manufacture rotational position detector exhibiting a high degree of freedom for fixing to a motor and good assembling properties to a circuit board for drive control of the motor, and a motor equipped wi...  
WO/2002/023702A1
An armature is separated into a plurality of armature blocks (4, 5, 6) and arranged in the direction of thrust. Teeth (10) the number of which is an integral multiple of the number of phases arranged at regular pitches are provided on bl...  
WO2001099259A8
In an electrical drive unit according to prior art, a signal receiver which is arranged on a printed circuit board in an electronic housing has to be brought close to a signal transmitter, thereby requiring considerable effort. The inven...  
WO/2002/020293A2
Disclosed is an electric motor system with reduced torque ripple comprising a sinusoidally magnetized permanent magnet (66), a sinusoidal inverter (50), a higher resolution position sensor, a composite iron stator yoke (70), a composite ...  

Matches 851 - 900 out of 16,049