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WO/1994/004807A1 |
In a prior art actuator the stator is either made in two parts or the exciting winding must be fitted directly on the stator, involving a laborious production process. The novel actuator is intended to provide simple and economical produ...
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WO/1994/005073A2 |
A small, permanent magnet rotor, synchronous electric motor, suitable for use in, for example, a home appliance such as a refrigerator/freezer to drive a fan blade. The rotor of the motor is provided with two, axially displaced magnetic ...
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WO/1994/001919A1 |
A fault-tolerant reluctance motor has a multiphase stator winding. The stator (2) has a different number of poles from the rotor (5). The lead angle and the pole angle beta, betar) embraced by each stator and rotor pole (3, 5) is at leas...
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WO/1993/022822A1 |
The stepper motor (66) comprises a multi-pole composite magnet (64), two stator members (65A and 65B) and means for positioning (60A, 60B, 60A' and 60B') the rotor and stator members. The composite magnet (64) comprises two sections (50,...
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WO/1993/012573A1 |
The present invention relates to doubly salient reluctance machines (DSRMs) including switched reluctance machines, stepping motors and hybrid stepping motors. To improve the utilisation of the machine windings and associated electronic ...
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WO/1993/008634A1 |
A rotary electric machine constructed on the basis of a new operational principle, which is operated by using a magnetic repulsive force as its driving force and can be utilized as a motor, etc. In the rotary electric machine, provided a...
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WO/1992/022122A1 |
The present invention concerns a two-phase, stepping or synchronous motor. The rotor (6) includes five pairs of poles and the stator consists of two identical stator components (1, 2) made from a low retentivity material, each having two...
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WO/1992/016047A1 |
An apparatus for performing numerical control of a load at a high speed efficiently. The apparatus drives a linked load, as a DC motor, in the initial period of the movement of the load, and then, generates a braking torque to decelerate...
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WO/1992/010664A1 |
A rotaty actuator for adjusting the angle of rotation of adjusters, especially a throttle to determine the flow cross-section in a line for internal combustion engines, has an electric servomotor (15) with a two-pole stator (18) and a tw...
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WO/1992/010663A1 |
A rotating actuator for adjusting the angle of rotation of adjusters, especially a throttle to determine the flow cross-section in a line for internal combustion engines, has an electric servomotor (15) with a two-pole stator (18), a sta...
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WO/1992/010024A1 |
A miniature motor comprises a stator, a rotor (1), a bearing (3) for bearing the rotor (1) in a rotary manner, a rotor axis (2) which is coupled to said rotor (1), and electric connecting means (6) for electrically connecting the stator ...
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WO/1991/020120A1 |
A dual voltage direct current permanent magnet brushless motor operated by sequential and alternate pulses to two rows of stator coils (3, 9) radially and equally positioned in the stator (5) assembly to interact with two rows of permane...
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WO/1991/003098A1 |
Motor-wheel characterized in that the movable part or rotor is arranged about the fixed part or stator and whereon is mounted a rim capable of receiving a conventional tyre or a tread. The motor has two free shaft ends which are used to ...
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WO/1990/016107A1 |
The invention relates to a monophase electromagnetic actuator which includes a rotor (1) with a cylindrical magnetized section (5) divided into two N poles transversely mangetized in alternate directions. The actuator also includes a sta...
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WO/1990/009058A1 |
A dielectric motor comprises a rotor (4) which is surrounded by one or more electrodes (2a-d) and which has an opening in the interior (5) containing one or more electrodes (1) about which the rotor (4) can move. Possible fields of appli...
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WO/1990/009057A1 |
The invention concerns motors in which the torque is produced not by magnetic fields but by dielectric forces. Fields of application are microelectronics and micromechanics. The rotors consist of several dielectrics (2a, 2b) arranged in ...
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WO/1990/003031A1 |
A recording/reproducing apparatus used, for example, for a computer, and particularly an apparatus for recording desired data on a recording medium such as a floppy disc and for reproducing data. The recording/reproducing apparatus is re...
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WO/1990/001231A1 |
A motor is disclosed comprising a housing (5) and a plurality of parallel stator laminations (4) mounted on the interior wall of the housing surrounding the rotor (3). The stator (4) comprises a plurality of coils (28) wound around the s...
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WO/1989/012194A1 |
An electric drive comprises a base (1), an electric motor including a casing (2) with a stator (3) and a rotor (4) mounted in it, a motion screw (5) and a limiter of the axial force, which is mounted between a supporting surface (12) of ...
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WO/1989/000785A1 |
The electric motor includes a mover (10), which may be a rotor or actuator, and a stator (12) having a number of poles (40-54) projecting toward the mover (10). The poles (40-54) have soft-magnetic teeth (58) projecting toward the mover ...
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WO/1988/002194A1 |
The present invention relates to a hybrid pulse motor. With the conventional pulse motors, it was difficult to decrease the thickness in the direction at right angles with the rotary shaft. According to this invention, teeth (14) are for...
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WO/1987/007784A1 |
Electrically-energized salient stator poles (40 to 54) of a variable reluctance motor terminate in stator teeth that oppose the rotor (10). Permanent magnets (110, 120) located between adjacent stator teeth and magnetized transverse to t...
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WO/1987/000986A1 |
The insulation between the exciter windings and the magnetisable material of the stator consists of a duroplastic or thermoplastic material of the linear polysulphone, fluorinated polymer or polyimide groups, so that the stepping motor c...
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WO/1986/003071A1 |
Stepping motor which is used for feeding paper and a typewriting base in a machine for office automation, such as a printer and a typewriter. A plurality of stator yokes (2), (3), (4), (5), are molded out of a resin unitarily to a predet...
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WO/1986/000765A1 |
The structure of the motor is as follows: a rotor (1) of which the N magnetization axes are parallel to the rotation axis (1a) and alternatively opposite; two stators, an upper stator (b), and a lower stator (a); each stator is comprised...
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WO/1985/005741A1 |
A stepping motor provided with a magnetic movable member (4) composed of an even number of regularly spaced first pole teeth (4a), (4b), etc.; a magnetic fixed member (1) composed of an odd number of at least three regularly spaced secon...
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WO/1985/005507A1 |
A stepping motor with toothed stator poles (40, 42, 44, etc.) and toothed rotor poles (36) is magnetically enhanced by locating permanently magnetized inserts (40) in the spaces between the stator teeth and magnetizing the inserts transv...
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WO/1985/004269A1 |
A permanent magnetic stepper motor (10) apparatus which provides high constant torque and constant speed through a large stepping angle under varying output shaft load conditions. The apparatus includes a rotor (12), a plurality of stato...
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WO/1985/000704A1 |
The structure of the motor is as follows: the rotor (1) has N magnetizing axes parallel to the rotation axis of the rotor, the adjacent poles having opposite names; the stator (2) forms m phases (r, s), m = N/2 x n, n being an integer; e...
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WO/1985/000705A1 |
The structure of the motor is as follows: the rotor (1) has N/2 pairs of poles which have alternate opposite names on each of its two faces; the poles of one face are directly facing those of the same name of the other face; two identica...
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WO/1985/000707A1 |
The structure of the motor is as follows: a rotor (1) has on each of both its faces N/2 pairs of poles having alternatingly opposite signs; the poles of one face are directly facing those of the other face and with the same sign; two sta...
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WO/1985/000706A1 |
The structure of the motor is as follows: the rotor (1) has N/2 pairs of poles at its periphery which have alternate opposite names; the stator (2) surrounds concentrically the rotor (1) and forms m phases (r, s), m = N/2 x n, n being an...
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WO/1984/001862A1 |
A magnetic motor has K stators (K = any integer) and preferably K + 1 rotors, with each stator (2) having 4n (where n = any integer) electromagnetic coils (7), and each coacting rotor (3) has p = (3/2)n permanent magnets (8) with their p...
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WO/1983/002042A1 |
The motor according to the invention comprises a disc-shaped rotor with multipolar permanent magnetization along an annular area and a stator comprising a plurality of magnetic circuits (9, 10,...) arranged so that the magnetic field is ...
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WO/1983/001156A1 |
The electric machine according to the invention comprises an iron-free rotor provided with two windings (1, 2) each of them being formed by a plurality of coil elements (11, 12, 13 and 21, 22, 23). The elements (11, 12, 13) of the first ...
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WO/1982/004363A1 |
The damping mass for stepping motors having uniform or unequal switching steps, is arranged on the motor shaft and has, during starting of the motor, a low inertia but still capable of damping mechanical and/or electric oscillations occu...
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WO/1982/003928A1 |
The rotor (6) of the stepping motor for a quartz watch is mounted on one single bearing, comprised by the ball bearing (3, 5, 8), wherein is engaged the medial portion of its shaft (1). On either side of this bearing, the shaft (1) carri...
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WO/1982/002291A1 |
Diphased stepping motor with axially magnetized rotor. This motor comprises two stationary magnetic circuits (4, 5) having each two branches of which at least one is coupled to an electric control coil (12, 13). The branches (6, 8) of ea...
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WO/1982/000929A1 |
The two polar parts (9 and 10) which extend respectively above an underneath the cylindrical permanent magnet (7) forming the motor part of the rotor, are each provided with a generally circular opening but which is profiled and limited ...
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WO/1980/002203A1 |
A polyphased stepping motor for the direct driving of the second or minute pin in a clockwork. The motor comprises a disc shaped rotor (1) axially magnetised so as to have 2N alternating poles and at least two stator members (2, 3) each ...
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WO/1979/000951A1 |
Synchronous motor wherein an eccentric piece (6) mounted on the shaft (5) cooperates with a ball joint of which the outer cage is an integral part of the surface of the rotor (21) to maintain a predetermined tilting of the axis (0'0) of ...
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JP7479261B2 |
To provide a motor capable of preventing an annular and flat boss from being displaced relative to a rotation shaft when an excessive load to an opposite-output side is applied to a rotor even when a drive magnet is attached to the rotat...
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JP7466971B2 |
[Object] To provide a stator unit capable of inhibiting water from entering an inner space of a yoke and inhibiting a coil wire from breaking, an electric valve, and a method for manufacturing the stator unit.[Solution] A stator unit 80 ...
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JP7460492B2 |
To provide a stepping motor capable of suppressing a bobbin's rattling against a stator core when a rotor is rotating.A substrate holder 14 that holds a substrate 13 of a stepping motor comprises: a bobbin pushing portion 14c that pushes...
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JP7449131B2 |
To provide a stator which can be assembled without being affected by a projection by solving the problem of interference between the projection and the train of wheels caused by melting processing by laser.A stator includes: a magnetic p...
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JP2024034467A |
The present invention provides a stator unit and an electric valve that can suppress electromagnetic waves emitted from a stator and prevent malfunctions in the operation of electronic components, and a method for manufacturing the stato...
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JP7438839B2 |
A stepping motor includes a stator, and a rotor disposed in opposed relation to the stator and movable in a predetermined movement direction. The stator has a plurality of main poles, windings for the respective main poles, a plurality o...
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JP2024017594A |
[assignment] To provide a quiet motor that produces no contact noise between a shaft and an inner circumferential portion of a bearing when the motor rotates. [Solution] A yoke that forms a magnetic circuit, an excitation coil and rotor ...
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JP7418838B2 |
To provide a stator unit and a motor operated valve which can suppress variations in amounts of a resin arranged in a space between a plurality of pole teeth of a yoke, and a method for manufacturing a stator unit.A stator unit 80 has an...
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JP2023180134A |
To provide an electric valve control device which can comparatively detect that the rotation of a magnet rotor has been regulated, and an electric valve device.An electric valve control device 100 controls an electric valve 5. The electr...
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