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Patent Searching and Data


Matches 951 - 1,000 out of 15,982

Document Document Title
WO/2000/057539A1
An electric motor having a snap-together construction without the use of separate fasteners. The construction of the motor removes additive tolerances for a more accurate assembly. The motor is capable of programming and testing after fi...  
WO/2000/057536A1
An electric motor having a snap-together construction without the use of separate fasteners. The construction of the motor removes additive tolerances for a more accurate assembly. The motor is capable of programming and testing after fi...  
WO/2000/057538A1
A discoidal brushless DC motor having a stator (507) carrying windings (503) arranged in slots which radiate out from the centre of the stator to the periphery. The depth of each slot increases towards the centre of the stator. The slot,...  
WO/2000/057541A2
An electric motor having a snap-together construction without the use of separate fasteners. The construction of the motor removes additive tolerances for a more accurate assembly. The motor is capable of programming and testing after fi...  
WO2000030238B1
The present invention relates to an electric machine presenting a constructive base form that enables said machine to be used both as a motor and as a generator and to provide a high yield of the air-core coil on the smallest area possib...  
WO/2000/055852A1
A disk drive is provided with a balancer having a hollow circular section (14) that accommodates a magnetic body (13), a clamper (10) that rotates integrally with the disk (1), a magnetism generating device (272) that generates a magneti...  
WO/2000/051224A1
A permanent magnet D.C. motor (90) includes a stator assembly (112) with a plurality of upstanding discrete spaced-apart core components (116) formed in a circular locus generally parallel with the motor axis. Each core component include...  
WO/2000/051229A1
An electrical rotating apparatus comprises an inverter system (18) that outputs more than three phases. The apparatus further includes a stator comprising a plurality of slots and full span concentrated windings, with the windings being ...  
WO2000017987A3
The present invention provides an improved DC electric starter-generator having high starting torque, compact size and weight, increased efficiency and reliability, and being particularly suitable for a starter-generator for aircraft eng...  
WO/2000/048296A1
An actuator comprising control means disposed in a housing and adapted for controlling the rotation of a rotary shaft through drive means, rotary shaft displacement detecting means disposed in the housing and adapted for detecting the ro...  
WO/2000/048289A1
A brushless motor comprising a stator which has 3n (n is an integer of 2 or more) magnetic poles formed in positions at which the circumference is equally divided into 3n sections and each provided with a columnar part projecting inward ...  
WO/2000/048006A1
The invention relates to a sensor which measures the angle of rotation or rotational speed and which comprises a pulse generator that is situated on a rotational element (10). Said pulse generator has a ring magnet (11) which is fabricat...  
WO1999041829A3
A constant-power brushless DC motor is provided, including a stator which is wound in parallel by phases and polarities and configured of n multi-phases, a rotor having a predetermined number of polarities, which is required to concentra...  
WO1999060692A3
An energy conversion magnetic circuit is constituted with magnet pole pieces of magnets or armatures which are in parallel with respect to the shaft to obtain a dynamic force or an electromotive force. The magnetic circuit for a generato...  
WO/2000/042696A1
An electric motor, a wheel, and drive apparatus for an electric vehicle are described and claimed. One aspect of the described invention is drive apparatus for an electrically powered vehicle, the drive apparatus including: a motor compr...  
WO/2000/041607A1
A magnetic induction drive for a rotatable driven member in a sealed housing, in particular, a shaft-mounted blade in a blender cup or a shaft-mounted blade in an ice shaver, uses a comparatively thin circular drive plate of a magnetizab...  
WO/2000/036727A1
A low-noise motor with a compensated moment of engagement is created with an electrically commutated stator and a permanent magnet rotor by means of specially configured stator air-gap surfaces, whereby said air gaps are provided at leas...  
WO2000010240A3
The speed of an electric motor (9) is regulated by means of a controller (6) that is provided with a setpoint value based on a characteristic function (23). The characteristic function (23) calculates a setpoint value for the controller ...  
WO/2000/031860A1
The aim of the invention is to produce sheet steel bodies for electrical rotating machines consisting of a base body, a rotor shaft and a laminated rotor body having permanent magnet excitations and coils which are arranged in grooves; s...  
WO/2000/030238A1
The present invention relates to an electric machine presenting a constructive base form that enables said machine to be used both as a motor and as a generator and to provide a high yield of the air-core coil on the smallest area possib...  
WO/2000/028656A1
A system for controlling a rotatable device, the system comprising a controller and a rotary device, which has a stator and rotor, wherein the controller is connected to the rotary device to control rotation of the rotary device, and whe...  
WO/2000/025409A1
A three phase switched reluctance machine (10) including a rotor (40) having both wide poles (54) and narrow poles (44), with a narrow pole (44) on each side of a wide rotor pole (54). The rotor poles being dimensioned such that the narr...  
WO/2000/022715A1
A two-phase switched reluctance motor comprising a stator (10) having an even number of evenly-spaced, like stator poles (24a-24l) defining a gap (28) between each stator pole, windings (32) for each of the two phases wound around the st...  
WO/2000/021189A1
The invention relates to an electronically commutated motor (M) which has a galvanomagnetic rotor position sensor (40) for generating rotor position signals. A timer (CNT_HL) serves to achieve a premature commutation which occurs once th...  
WO/2000/019587A1
A brushless motor includes protective means having a simple mechanism for protecting electronic components and so forth provided on a control board against both static electricity and heat of a heat sink. A protective member is provided ...  
WO/2000/017987A2
The present invention provides an improved DC electric starter-generator having high starting torque, compact size and weight, increased efficiency and reliability, and being particularly suitable for a starter-generator for aircraft eng...  
WO/2000/011776A1
The invention relates to an electric motor such as the one described in document EP0 433 479 Al, namely a so-called brushless DC motor, having a stator with a hub and first stator pole teeth extending radially outwards therefrom with exc...  
WO/2000/010240A2
The speed of an electric motor (9) is regulated by means of a controller (6) that is provided with a setpoint value based on a characteristic function (23). The characteristic function (23) calculates a setpoint value for the controller ...  
WO/2000/008745A1
The device detects an angle of rotation of a rotor with respect to a stator of a brushless multi-phase d.c. motor. The rotor comprises a permanent magnet and the stator comprises a plurality of electrical windings. In operation electric ...  
WO/2000/004290A1
An axial flow fan (100) comprising a printed circuit board which mounts the circuitry for operating the motor which is a bipolar winding motor. A voltage regulator IC and a driving IC for a bipolar winding motor are mounted on the printe...  
WO/1999/065133A1
An axial field electric machine (10) having an improved efficiency comprising a number of magnetic elements, e.g., rotor (14) as annular disks magnetized to provide multiple sector-shaped poles (58). The poles (58) of each disk (14) are ...  
WO/1999/063646A1
The invention relates to a three-phase direct current motor with electronic commutation and high motor performance, whereby fourteen permanent magnets or an even-numbered multiple of fourteen are arranged on the magnetic return ring, opp...  
WO/1999/060692A2
An energy conversion magnetic circuit is constituted with magnet pole pieces of magnets or armatures which are in parallel with respect to the shaft to obtain a dynamic force or an electromotive force. The magnetic circuit for a generato...  
WO/1999/057795A1
First and second stator circuitry for respective use with first and second stators in a multi-stator motor are configured so that the first stator circuitry is substantially unaffected by a failure of the second stator circuitry to energ...  
WO/1999/056381A1
A vertical Hall sensor (80) comprising a semiconductor crystal (1) with three or more arm sections (9, 29, 49) that are arranged at a uniform angle distance to each other. A central electrode (2) and external current electrodes are arran...  
WO/1999/052199A1
A driven body displacement sensor comprising a brushless motor, capable of simplifying the structure of a flow control valve for controlling the flow rate of, for example, cooling water driven by a brushless motor, and of being miniaturi...  
WO/1999/052196A1
An electric machine, such as a motor or a generator, comprises a stator having a plurality of stator poles defining a plurality of slots, a rotor positioned within the stator, and at least two sets of stator windings wound on the stator ...  
WO/1999/048187A1
A device such as an electric motor, an electric generator, or a regenerative electric motor inlcudes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable...  
WO/1999/045624A1
A highly efficient electric motor for converting electrical energy into rotational mechanical energy having at least one bobbin (3) wound stator coil through which passes a ring rotor upon which a plurality of permanent magnets are mount...  
WO/1999/041829A2
A constant-power brushless DC motor is provided, including a stator which is wound in parallel by phases and polarities and configured of n multi-phases, a rotor having a predetermined number of polarities, which is required to concentra...  
WO/1999/037924A1
A flat pack blower (10) utilizes surface mounting techniques for mounting the blower electronics on a thin laminated circuit board to reduce the blower profile. To that end, the blower includes a stator (16) and a rotor (14) rotatably co...  
WO/1999/033157A1
The invention relates to a brushless, electronically commuted motor, more particularly one used as drive motor for a ventilator drive mechanism in an automobile, comprising a permanent magnetic outer rotor (5), in which a stator (7) with...  
WO/1999/031785A1
A pump driven by an electric motor, in particular for a motor vehicle power steering system, has a pump housing (3) which consists at least in one partial region (29) of a good heat-conducting material through which the pump medium flows...  
WO/1999/029528A1
Disclosed is a switch wheel (12) shaped as a ring plate made of a magnetizable material, consisting, for instance, of a permanent magnet powder and a thermoplastic bond. The ring plate (12) is magnetized either in the direct proximity of...  
WO/1999/025034A1
Known Hall sensors are secured by component holders on a printed circuit board in order to accurately position and retain the Hall sensors on the printed circuit board with respect to the magnetic ring of the rotor of an adjusting motor....  
WO/1999/025057A1
The present invention relates to an electric motor which is intended for a motor-wheel such as those used in low-power vehicles. The motor comprises solenoids (7) which are mounted on a stator (1) as well as magnetic members (6) which ar...  
WO1999017431B1
The invention relates to a reluctance motor, comprising a stator (1) with a three-phase current stator winding for generating a magnetic rotary field, and a rotor (3) which consists mainly of a ferromagnetic material and is arranged on a...  
WO1999014841A3
Disclosed is a stator for use in an electric motor, including a brushless direct current motor, which presents a stator body (9) provided with a number of stator teeth (3) for receiving stator coils (W1, W2, W3, W4), said stator body (9)...  
WO/1999/018652A1
The armature coils (22) of a brushless linear motor are cast in resin to form an armature plate (20). A heat sink (24) is attached along one edge of the plate (20) with conductive pins (26) (e.g. aluminum pins) extending through the plat...  
WO/1999/017431A1
The invention relates to a reluctance motor, comprising a stator (1) with a three-phase current stator winding for generating a magnetic rotary field, and a rotor (3) which consists mainly of a ferromagnetic material and is arranged on a...  

Matches 951 - 1,000 out of 15,982