Matches 1 - 50 out of 319 1 2 3 4 5 6 7 >


Match Document Document Title
8109375 Clutch systems and methods  
Some embodiments of a clutch system may an output member and an input member can be biased to engage one another along opposing clutch surfaces. When input member drives rotation of the output...
8100239 Clutch device and methods  
Some embodiments of a clutch system may drive an output member to rotate at a first speed when the opposing clutch surfaces are engaged and to rotate at a second speed when the clutch surfaces are...
8063526 Magnetic gearbox arrangement  
Magnetic gearboxes an inner rotor and an outer rotor are known with pole members between them. However, these gearbox arrangements generally have a fixed gear ratio between the rotors. By provision...
8026647 Generator-brake integration type rotating machine  
A generator-brake integration type rotating machine comprises an inertia disk coupled to a shaft to rotate; a rotor ring rotating around the shaft inside the inertia disk and having magnets mounted...
7999429 Power transmission apparatus  
A power transmission apparatus includes a drive roller and a driven roller made of magnetic material, which are rotatable about different axes, and which are provided with a gap therebetween, a...
7990007 Apparatus for transferring torque magnetically  
An apparatus for transferring torque magnetically with a primary rotary member and a secondary rotary member. The primary rotary member has permanent magnets mounted circumferentially on a...
7898139 Variable effort steering actuator  
A magnetic actuator, comprising, an inner ring, an outer ring disposed around the inner ring, a first pair of inner teeth disposed on the inner ring that partially define a gap between the first...
7896147 Application of eddy current braking system for use in a gearbox/generator mechanical disconnect  
A disengagement assembly for disengaging a generator from an engine or gear box may include an inner ball screw having helical threading on an outer surface thereof and surrounding and operatively...
7851956 Electric motor with a low number of revolutions, in particular to drive lifting devices  
An electric motor (10) with a low number of revolutions comprises a rotor (17) powered by three-phase alternating voltage, a series of magnets (21, 22) and a coil forming a stator (24), in which...
7841456 Adjustable hysteresis driver  
The invention concerns an adjustable hysteresis driver, with a rotor component (5) on the input side that can be driven and/or a stator component (7′, 7″), with an armature component (8) on the out...
7821168 Axial gap dynamo electric machine with magnetic bearing  
An axial gap electric dynamo machine has a horizontally disposed rotor disk that is stabilized at its periphery by a plurality of permanent magnets connected to a ferromagnetic bearing plate that...
7605485 Systems and methods for generating power through the flow of water  
A system and method for generating and harvesting energy in response to the flow of water through rotating device, such as a nutating or oscillating disk. Mechanical energy from flow of water is...
7592727 Quiet load for motor testing  
A device for imposing a torque load upon rotating machinery comprises a rotary unit and plural electromagnetic units. The rotary unit includes a shaft and conductive disks discretely fastened...
7582997 Arrangement for conveying fluids  
An arrangement for conveying fluids has a fluid pump (174) having a rotatably journaled pump wheel (172) that is joined to a first permanent magnet (186) and an electronically commutated...
7562754 Frictional clutch for an element which can be driven, in particular fan wheel  
A friction clutch for a driven element is proposed, wherein the driven element can clutch be connected directly to a drive and can be matched to the speed of the drive by means of a friction disk...
7560837 Automotive alternator with rotary magnetic fluctuation suppressor  
An automotive alternator includes a rotary shaft, a pulley, a stator, a rotor, and a magnetic fluctuation suppressor. The pulley is provided on the rotary shaft to transmit rotating power from an...
7294947 Apparatus for transferring torque magnetically  
An apparatus for transferring torque magnetically with a primary rotary member and a secondary rotary member. The primary rotary member has permanent magnets, the secondary rotary member with...
7057321 Eddy current deceleration device  
An eddy current deceleration device comprises: a rotor mounted on a rotary shaft; a first magnet ring arranged facing this rotor and including permanent magnets that are arranged at prescribed...
7053512 Ventilation device with electromagnetic coupling  
Ventilation devices, in particular for electric motor drives regularly comprise a fan wheel (1), which is driven by a shaft via an electromagnetic induction coupling. In order to reduce the...
6975053 Rotator driving device, image forming apparatus using the rotator driving device, and method of driving rotator  
Rotational force of a driving motor is transferred to a photosensitive drum via a planetary-rolle reduction device, so that the photosensitive drum is rotated. A speed detector set on the shaft of...
6900569 Increased torque in retarder brake system through use of conductive layer  
Electromagnetic retarder brake systems, and methods for their use, are provided utilizing specified thickness conductive layers. The specified thickness of the conductive layer in each system is...
6841909 Magnetic drive system  
The magnetic drive system includes a motor and motor shaft and a motor assembly, the motor assembly including a cylinder of copper. A machine assembly for driving a machine includes a permanent...
6838796 Two-speed rotational control apparatus with eddy current drive  
A rotational control apparatus includes a first rotatable assembly and a second rotatable assembly. The first assembly is rotatably mounted to a first support mount. The second assembly is...
6820728 Integrated retarder and accessory device  
The invention comprises a retarder system for use with road vehicles. The retarder system discloses an improved vehicular retarder which incorporates the use of a PMG Gear ratio which permits use...
6756870 Composite magnet of electromagnet and permanent magnet, and eddy current retarder  
A composite magnet has an iron core, a coil around the iron core, and a permanent magnet in the iron core. A first eddy current retarder includes a brake drum with a rotatable shaft, and a...
6738340 Device for reducing the radial and axial play of a motor shaft in a deck for playing information discs  
The invention relates to a device in a deck for playing information discs (2), which preferably have been provided or can be provided with digital information, the information disc (2) being...
6700265 Eddy current retarder  
An eddy current retarder having a rotor part of the retarder with symmetry of revolution about the axis of the engine shaft so that it has a peripheral face facing a peripheral face of the stator...
6700264 Pump driving system of induction type  
An induction pump driving system has a motor shaft, a pump shaft, a first magnetization body, a second magnetization body, an electrical coil, a yoke, and a nonmagnetically electrical-conducting...
6680555 Electromagnetic hysteresis unit  
The invention is based on an electromagnetic hysteresis unit (1, 23) with magnetic north pole (4) which are arranged to alternate with magnetic south pole (5) on a magnet body (2, 3) in a...
6661144 Electromotive drive  
The aim is to improve the cooling of a self-ventilated electric motor (1). To this end, an electromagnetic speed limiting and governing device is provided between the motor shaft (3) and the fan...
6628029 Drive for a roller shutter winding tube  
A control device for rotating a tube supporting a roller member to be wound onto or unwound from the tube has at least one electric motor housed in the tube and drive mechanism for transmitting the...
6548929 Eddy current fan drive  
An eddy current fan drive cooling system is operable in a vehicle having a sheave rotating at a speed related to an engine speed. A driving assembly of the cooling system is attached to the sheave....
6459184 Ergometer loading device with large braking force  
An ergometer loading device includes a rotor and a stator which is provided so as to be coaxial with the rotor and have a prescribed gap from the rotor. The stator is provided with a core and a...
6318496 Steering booster system for a motor vehicle  
A steering booster system for a motor vehicle has an electronic control unit which senses by way of force or torque sensors the amount and direction of forces and torques applied to a manual...
6310416 Resisting and pulling mechanism  
A resisting and pulling mechanism comprises an excited magnetic disk and a braking wheel mounted coaxially with the excited magnetic disk which is provide with an excited magnetic coil. The braking...
6283901 Device for effecting resistance  
A device for effecting resistance is incorporated into an exercise or rehabilitation machine and is formed of an excited magnetic cylinder, an excited magnetic coil, a rotary cylinder, and two...
6257380 Calibrated hysteresis brakes  
A hysteresis brake including a casing having internal alternating first slots and first teeth, a pole having external alternating second slots and second teeth, a rotor including an annular portion...
6237728 Eddy current reduction braking system  
A movable magnet support tube and a stationary magnet support tube are aligned coaxially within a brake drum coupled to a rotational shaft. An array of magnets are supported at equal intervals on...
6217298 Electrodynamic transmission and a centrifugal pump with a transmission of this kind  
The transmission comprises at least three induction systems which are arranged axially one after the other or coaxially one above the other and which can be rotated about a common axis of rotation...
6208053 Adjustable torque hysteresis clutch  
A hysteresis slip clutch having an adjustable stall torque is provided. The clutch components include first and second rotors, with a housing at least partially enclosing the rotors. An annular...
6169347 Rotating coil electromagnetic clutch  
An electromagnetic coil is disposed in a rotor, and electrically insulated from the rotor. A slip-ring is supported by a rotor through a slip-ring supporter, and rotates with the rotor. A brush is...
6097123 Brake and stall detector for a motorized actuator  
An actuator for an HVAC system includes a motor coupled by an electrically operated clutch to a gear train which drives an output connector. A spring is connected to the transmission to drive the...
6072258 Permanent magnet coupler with adjustable air gaps  
A cage carrying two axially adjustable conductors is mounted on one shaft and a rotor is mounted on a second coaxial shaft to occupy a position between the conductors. Permanent magnets on the...
6025664 Permanent magnet vehicle braking apparatus  
A vehicle braking system including a brake drum connected to a rotational shaft; an annular member formed of a ferromagnetic material; a guide frame for supporting the annular member in a position...
6002193 Basic module for a discoidal electric machine, and corresponding electric machine  
The present invention includes a basic module for a discoidal machine. The module includes at least one stator subassembly and a rotor subassembly. A housing member is connected to the stator...
5994810 Integral steel-aluminum ring for eddy current activated friction clutch  
A fan clutch (A') includes an eddy current drive (224) having a first, magnetic field producing drive component rotatable with the output and a second, coupling drive component rotatable with the...
5942826 Eddy current apparatus  
The rotor or the stator of the apparatus has inductor coils whose respective axes are parallel to the axis of rotation and distributed at regular intervals along a circle centred on the axis of...
5903075 Permanent magnet coupler with soft start adjustment system  
The soft start of a permanent magnet coupler of the type in which magnetic flux from permanent magnets on a rotary magnet rotor bridges an air gap between the magnets and an electroconductive...
5900903 Deflecting scanning apparatus  
In a deflecting/scanning apparatus, a rotating polygon mirror is rotatably supported by an air bearing constituted by a stationary shaft and a rotating sleeve which are made of a ceramic material....
5898249 No slip eddy current drive  
A variable speed eddy current drive has a driven member and an output member. The driven member is structured and arranged to be coupled to a motor shaft. The output member is structured and...
Matches 1 - 50 out of 319 1 2 3 4 5 6 7 >