Brake Type Patents (Class 310/93)
  • Patent number: 10822856
    Abstract: An electromechanical strut and method of moving a closure member of a vehicle between an open position and a closed position is provided. The electromechanical strut includes a power drive unit including a motor, a leadscrew, a planetary gearset operably connecting the motor to the leadscrew, and an electromechanical brake assembly. The electromechanical strut further includes a telescoping unit including an extensible tube and a drive nut for converting rotary motion of the leadscrew into linear motion of the telescoping unit. The electromechanical brake assembly is selectively moveable between an engaged state, wherein the leadscrew is prevented from rotating to prevent relative axial movement between the power drive unit and the telescoping unit, and a disengaged state, wherein the leadscrew is permitted to rotate to allow relative axial movement between the power drive unit and the telescoping unit.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: November 3, 2020
    Assignee: MAGNA CLOSURES INC.
    Inventors: Jube Leonard, Borys M. Shchokin, Joseph Scheuring
  • Patent number: 10773832
    Abstract: A projectile intended for damping a spacecraft (100) comprising a main body (110) and active attitude control means (150) comprises a harpoon and is intended to equip a space delivery vehicle to be projected towards the spacecraft. It comprises a passive damper (200) mounted such that it is fixed on the harpoon and suitable for generating, in cooperation with the Earth's magnetic field, a damping torque. That passive damper (200) comprises an outer enclosure (210) and an inner body (220) configured such that: the inner body, permanently magnetized, is positioned inside the outer enclosure and is capable of moving in rotation about at least one axis of rotation, the outer enclosure and the inner body comprise respectively an inner surface and an outer surface, separated by means of a viscous fluid, the outer enclosure is fixed to the main body of the spacecraft for rotation therewith once the harpoon is secured to the main body.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 15, 2020
    Assignee: AIRBUS DEFENCE AND SPACE SAS
    Inventors: Cyril Tourneur, Kristen Lagadec
  • Patent number: 10603596
    Abstract: Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimize the number of parts required and may minimize the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: March 31, 2020
    Assignee: Eddy Current Limited Partnership
    Inventors: Andrew Karl Diehl, Kevin A. Wright
  • Patent number: 10532662
    Abstract: An apparatus has a first portion of a magnetic braking system with a first element disposed thereon. The first portion rotates about an axis. The position of the first element is a fixed distance from the axis. A second portion of the magnetic braking system has a second element disposed thereon. A spring biases the rotatable first portion a first distance from the second portion. Upon application of a force to one of the portions, the relative position of the rotatable first portion to the second portion is reduced to a second distance less than the first distance.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: January 14, 2020
    Assignee: TRUBLUE LLC
    Inventors: John Lewis McGowan, Steven K. Holmes
  • Patent number: 10300397
    Abstract: Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimize the number of parts required and may minimize the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 28, 2019
    Assignee: Eddy Current Limited Partnership
    Inventors: Andrew Karl Diehl, Kevin A. Wright
  • Patent number: 9993879
    Abstract: A cutting tool includes a cutting insert mounted to a head attached to a collar at a first end of the cutting tool. A shank is located at a second, opposite end of the cutting tool. A central cavity extends inwardly from the first end toward the shank. An eddy current vibration absorber assembly is disposed within the central cavity. The eddy current vibration absorber assembly includes an absorber mass made of an electrically conductive material, a magnetic material proximate the absorber mass, and a support member for supporting the absorber mass within the central cavity. The eddy current vibration absorber assembly is tuned by selectively adjusting a distance between the absorber mass and the magnetic material.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: June 12, 2018
    Assignee: KENNAMETAL INC
    Inventors: Samuel Eichelberger, Tony Schmitz, Shi Chen, Igor Kaufmann
  • Patent number: 9841351
    Abstract: The invention relates to a chassis dynamometer and to a method for simulating the behavior of the vehicle in a chassis dynamometer, comprising an actuator for transferring a longitudinal force to the vehicle, a rotational movement carried out by a wheel or a drive train of the vehicle being measured, a corresponding longitudinal acceleration being determined from the measured rotational movement and the actuator being controlled in accordance with the determined longitudinal acceleration based on the measurement.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: December 12, 2017
    Assignee: Kristl, Seibt & Co. Gesellschaft m.b.H.
    Inventors: René Reiter, Christoph Schwaerzler, Michael Palzer, Roland Margelik
  • Patent number: 9810314
    Abstract: A shifter assembly for changing gears in a vehicle transmission, including a housing and a shift rod rotatably supported in the housing. The shift rod is selectively movable between a plurality of radial positions. A disc is in rotational communication with the shift rod for concurrent movement between the radial positions. The disc defines a plurality of gates each having respective first and second ends. A plurality of solenoids are disposed in the housing adjacent the disc. Each of the solenoids has a plunger selectively movable between a first position spaced from the disc and a second position disposed within one of the gates. The gates are spaced equally from each other and are radially aligned about a common reference circle. Rotation of the shift rod is selectively limited by at least one of the plungers in the second position engaging at least one of the ends of the gates.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: November 7, 2017
    Assignee: KONGSBERG DRIVELINE SYSTEMS I, INC.
    Inventors: Jeff Behounek, Thomas Blicharz, Jeffrey Dulzo, Terrentha Hill, Jonathan Love, Kenneth Shepard, Harry Edward Koontz
  • Patent number: 9559623
    Abstract: A method of controlling an electrical machine. The electrical machine includes a stator having a core and a plurality of windings, and a rotor disposed adjacent to the stator to interact with the stator. The method includes configuring an amplitude value and frequency values of a three-phase alternating current (AC) voltage startup signal having an amplitude and a frequency, providing the three-phase alternating current (AC) voltage startup signal to the plurality of windings, and altering the frequency of the three-phase AC voltage startup signal according to a preprogrammed frequency ramp function defined by the frequency values. The method further includes discontinuing the three-phase AC voltage startup signal after the frequency ramp function has completed, and switching to a back electromotive force (BEMF) control mode after discontinuing the three-phase AC voltage startup signal.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: January 31, 2017
    Assignee: Regal Beloit America, Inc.
    Inventor: Paul S. Mullin
  • Patent number: 9541154
    Abstract: A rotary damper for a motor vehicle includes at least one damper element for damping the relative movement of a first mass located on the wheel-suspension side and of a second mass located on the vehicle-body side, with at least one vibration absorber (8) being arranged on the rotary damper (1).
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: January 10, 2017
    Assignee: AUDI AG
    Inventor: Marco Willems
  • Patent number: 9438084
    Abstract: An explosion-proof braking device is described, which is configured to be connected to the front flange of an explosion-proof electric motor, the braking device comprising: a shaft (6) connected to the shaft of the motor from the outside, and provided with bearings (7, 8) internal to the device, an electromagnetic brake (11, 12, 13, 14) acting upon said shaft (6), comprising at least one excitation coil (11) and one air gap (10). The shaft (6) is made of a non-magnetic metal alloy, the bearings (7, 8) are so positioned as to lie outside the main flux lines of the magnetic field produced between the coil and the air gap, and the braking device is provided with flame-proof lamination joints of the through or closed type.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: September 6, 2016
    Inventors: Andrea Paone, Guido Paone
  • Patent number: 9385578
    Abstract: A magnetic spring arrangement for a resonant motor, comprising: a housing (12), magnets (14, 16) fixed in position at opposing ends (13, 15) of the housing, a magnet (18) positioned within the housing for movement toward and away from the fixed magnets in a reciprocal oscillating motion with a driving action produced by a stator coil (24) and an AC drive signal (26), wherein an applicator member (32) is attachable to the moving magnet for corresponding movement of a workpiece portion (34) of the applicator member.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: July 5, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Patrick Headstrom
  • Patent number: 9372498
    Abstract: The rotary/push operating device (10) for a human-machine interface, in particular for a vehicle component, such as an air conditioning system, is provided with a rotary/push operating element (12) that can be rotated about a guide shaft (14) in a rotary movement and moved axially along the guide shaft (14). Furthermore, the rotary/push operating device (10) has a rolling bearing unit (30) having an outer bearing ring (32), an inner bearing ring (34) and rolling elements (36,38) arranged therebetween, wherein one of the bearing rings (32, 34) is connected with the rotary/push operating element (12) in a rotationally fixed manner and can be rotated therewith.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 21, 2016
    Assignee: Behr-Hella Thermocontrol GmbH
    Inventors: Winfried Fust, Frank Vogt
  • Patent number: 9219396
    Abstract: Provided is a rotary electric machine capable of improving cooling performance for a stator coil and a stator core. In the rotary electric machine, an outer-side outer diameter portion (26) of an exhaust hole (24) is formed on an inner diameter side of a position which is opposed to an axial-direction side end surface (30) of a fan blade (27) of a centrifugal fan (13) in an axial direction. Therefore, the axial-direction side end surface (30) of the fan blade (27) and the exhaust hole (24) have a positional relationship so as not to overlap each other in the axial direction. In this manner, cooling air exhausted through the exhaust hole (24) is unlikely to be forced to return to the exhaust hole (24). Therefore, exhaust efficiency is improved to efficiently cool a stator coil (22) and a stator core (21).
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: December 22, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Seiya Watanabe, Hideyuki Hayashi
  • Patent number: 9205716
    Abstract: An energy regeneration device of a suspension system for a vehicle is provided and includes a suspension link connecting a wheel carrier to a vehicle body and a bush unit disposed between a vehicle body connection portion of the suspension link and the vehicle body, outputs hinge motion of the suspension link via an output gear. A rotation fixing mechanism rotates the output gear by connecting the output gear to a side of the suspension link. A one-way power transmission mechanism connected with the output gear receives the hinge motion via an input gear and outputs one-way rotational power. A generator generates electricity while being rotated by the transmitted one-way rotational power. A speed-up mechanism disposed between the generator and the one-way power transmission mechanism transmits the one-way rotational power to the generator. A rectifier electrically connected with the generator, rectifies the electricity generated by the generator.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 8, 2015
    Assignee: Hyundai Motor Company
    Inventors: Sang Hoon Yoo, Sung Bae Jang, Byung Gu Kang, Un Koo Lee
  • Patent number: 9197118
    Abstract: A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed within a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed within an intermediate portion of the magnetic body and defining pole teeth (RT). The ratio of a width of a pole tooth to a height of a permanent magnet is around 0.65 to around 1.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: November 24, 2015
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Jean-Claude Matt, Jean-Claude Mipo, Li Li, Albert Foggia
  • Patent number: 9083228
    Abstract: A stator (1?) for electromagnetic retarders intended for vehicle gearbox and axle installations, includes at least one electromagnetic coils (2) assembly, two identical annular radial flanges (5?, 5?), and an asymmetrical pole shoe (6) on each radial transverse face of the two ends of each of the electromagnetic coils, and attached by a central axial screw (7), perforated attachment studs that are symmetrical relative to a median plane (M) between and parallel to the transverse faces, attached to the electromagnetic coil (2) support (5?, 5?) in order to attach the stator (1?) beside one or the other of the transverse faces to a stator support of the vehicle, using fasteners.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: July 14, 2015
    Assignee: TELMA
    Inventors: Akafou Mbarek, Romuald Belance, Rafik Lounis, Nicolas Quennet
  • Patent number: 9077215
    Abstract: A rotary electric machine according to an aspect of an embodiment includes a detector and a brake. The detector is provided at the counter-load side of a shaft for rotating along with a rotor to drive a predetermined load and detects the rotation position of the shaft. The brake is exchangeably provided at the outer circumferential side of the detector to control the rotation of the shaft.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: July 7, 2015
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Ryuta Kagawa, Kenji Matsuura
  • Patent number: 9035511
    Abstract: The electric motor consists of a rotor fitted with permanent magnets and comprises a stator the armature of which is made up of two parts: a stack of laminations forming round teeth and a solid tube-shaped field frame made of a material of the stainless steel kind enveloping the said stack of laminations. This armature constitutes a non-disengageable braking system that produces a damping effect in the face of possible movements of its rotor which are brought about and/or imposed by the members with which it collaborates. This motor can be used for driving a roto-linear actuator device with satellite rollers which is used as an actuator for maneuvering the control surfaces of an aircraft, for example an aileron.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: May 19, 2015
    Assignee: Sagem Defense Securite
    Inventor: Jérôme Piaton
  • Publication number: 20150097371
    Abstract: An electromagnetic braking system includes an electrically conductive disc coupled to a rotatable shaft of a power generation system. The rotatable shaft is operatively coupled to a prime mover and a generator. The electromagnetic braking system further includes an inducting unit for applying an electromagnetic braking torque on the electrically conductive disc when commanded by a control signal and a controller for receiving an activation signal from an activating unit, receiving a rotational signal from a rotational sensor coupled to the rotatable shaft or the generator, determining a control signal when the rotational signal is outside of a threshold, and, when the activation signal is active and the rotational signal is outside of the threshold, sending the control signal to the inducting unit to regulate a rotational dynamic of the rotatable shaft.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 9, 2015
    Inventors: Ara Panosyan, Christoph Boeld, Herbert Schaumberger, Stefan Schroeder, Lukas Vogl, Mikhail Avramovich Avanesov
  • Publication number: 20150069870
    Abstract: A flywheel magnetic controller for mating with an existing flywheel has a magnetic wheel, an external driving module, an elongated pulling element and a rotary engaged adjustment unit. The cable assembly adjustment structure of the flywheel magnetic controller is simplified structurally, thus greatly reducing the fabrication and assembly cost, and facilitating flexible and universal assembly with better applicability.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: Her Yuan Chyun Co., Ltd.
    Inventor: Hsien-Mo LIN
  • Publication number: 20150061298
    Abstract: An electromagnetic braking system includes an electrically conductive disc coupled to a rotatable shaft of a power generation system for operating in an island mode. The rotatable shaft is operatively coupled between a prime mover and a generator for supplying power to an island grid. The electromagnetic braking system further includes a controller for receiving at least one status or synchronization signal and for generating a control signal based on the at least one signal and an inducting unit for applying an electromagnetic braking force on the electrically conductive disc when commanded by the control signal to regulate a rotational speed of the rotatable shaft.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 5, 2015
    Inventors: Ara Panosyan, Stefan Schroeder, Christoph Boeld, Herbert Schaumberger, Johann Hirzinger-Unterrainer, Xiaoting Dong, Uwe Liebscher
  • Publication number: 20140375158
    Abstract: An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterised in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.
    Type: Application
    Filed: August 20, 2014
    Publication date: December 25, 2014
    Inventors: Christopher James Allington, Andrew Karl Diehl, Bruce John Robertson
  • Patent number: 8754557
    Abstract: A bowling machine motor/gearbox conversion and adaptor kit may allow people to reuse their current gearboxes by adapting the components to utilize a new motor that would make the gearbox universal instead of having different motor/gearbox combinations. The adaptor kit may adapt the gearbox portion of the motor/gearbox assembly to allow the gearbox to accept a current, new motor. A person may use the adaptor kit to repair and replace components of a bowling machine's motor and gearbox assembly.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: June 17, 2014
    Inventor: Michael Hopkins
  • Patent number: 8689946
    Abstract: A system for blocking an output shaft of the engine of an automobile, of a type that includes a toothed wheel coaxially mounted on the shaft, and a first finger mobile between a shaft releasing position and a shaft blocking position in which the first finger is engaged in a gap formed between two teeth of the wheel. The system includes an alignment mechanism capable of aligning a gap between two teeth of the wheel and the first mobile finger, and the first mobile finger is configured to be inserted into the gap without any substantial circumferential clearance.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: April 8, 2014
    Assignee: Renault S.A.S.
    Inventor: Arnaud Villeneuve
  • Publication number: 20140001756
    Abstract: An electromagnetic braking system of a power generation system includes an electrically conductive disc coupled to a rotatable shaft operatively coupled between a prime mover and a generator; a controller for receiving a status signal from the power generation system and for generating a control signal based on the status signal; and an inducting unit for applying an electromagnetic braking force on the electrically conductive disc when commanded by the control signal to regulate a rotational speed of the rotatable shaft.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 2, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ara Panosyan, Simon Herbert Schramm, Jan Erich Hemmelmann, Christof Martin Sihler, Francesco Papini, Xiaoting Dong, Johannes Huber
  • Patent number: 8618704
    Abstract: An electric motor is disclosed and which includes a braking element which is biasingly urged into a braking relationship relative to the electric motor, when the electric motor is deenergized, but which is further moved out of braking engagement when the electric motor is energized. The invention finds particular usefulness when used on hand tools, such as angle grinders.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: December 31, 2013
    Assignee: Metabowerke GmbH
    Inventors: Matthias Hiller, Andreas Spielmann
  • Patent number: 8598757
    Abstract: A magnetic-controlled actuator (100) with an auto-locking function for joints of a manipulation arm mainly includes an inner-layer stator (10), an inner-layer mover (20), an outer-layer mover (30), an outer-layer stator (40), and a fixing shaft (50). The inner-layer mover (20), the outer-layer mover (30), and the outer-layer stator (40) have a plurality of permanent magnets, respectively. The fixed shaft (50) simultaneously penetrates through the inner-layer stator (10), the inner-layer mover (20), the outer-layer mover (30), and the outer-layer stator (40) forming a coaxial arrangement. The inner-layer mover (20) rotates relatively to the inner-layer stator (10) to output power from the actuator (100). Therefore, a cogging effect, which is produced due to interaction of the permanent magnets between the outer-layer mover (30) and the outer-layer stator (40), is automatically produces a high cogging torque for the actuator (100).
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: December 3, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Liang-Yi Hsu, Po-Kung Wang, Mi-Ching Tsai, Ming-Yang Cheng, Chien-Chin Huang, Ching-Shiong Tsai, Hong-Cheng Sheu
  • Publication number: 20130093274
    Abstract: A stator (1?) for electromagnetic retarders intended for vehicle gearbox and axle installations, includes at least one electromagnetic coils (2) assembly, two identical annular radial flanges (5?, 5?), and an asymmetrical pole shoe (6) on each radial transverse face of the two ends of each of the electromagnetic coils, and attached by a central axial screw (7), perforated attachment studs that are symmetrical relative to a median plane (M) between and parallel to the transverse faces, attached to the electromagnetic coil (2) support (5?, 5?) in order to attach the stator (1?) beside one or the other of the transverse faces to a stator support of the vehicle, using fasteners.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 18, 2013
    Applicant: TELMA
    Inventor: TELMA
  • Publication number: 20120326544
    Abstract: A magnetic brake system includes a magnetic induction unit, which is fixedly mounted at the chassis of a vehicle and comprising a stack of silicon steel sheets and a coil wound round the stack of silicon steel sheets and electrically connected to a switch at a brake pedal of the vehicle, and a magnetic attraction unit, which is arranged corresponding to the magnetic induction unit for causing a magnetic attractive or repulsive force between the magnetic induction unit and the magnetic attraction unit when the brake pedal is pressed to switch on the switch.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 27, 2012
    Inventor: Shuen-Ri Jou
  • Patent number: 8322683
    Abstract: A damper actuator motor device includes a fan brake device which is secured to a motor rotor shaft and is configured to reduce motor rotation speed in a preferential direction. Preferably, the fan brake device has an asymmetric configuration, and is adapted to gather air radially in an enclosed cavity and discharge it axially in one direction. The fan device preferably is adapted to project a size that takes up more than half of the space of the cavity. When the motor is back driven, the fan brake device causes differentially pressure and air resistance in a confined area, producing a drag and braking force that increases with motor speed. The invention can be applied to motor actuators used to control air dampers and other valves in gas or fluid delivery systems. The invention can also be used to reduce water hammer in water delivery systems.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: December 4, 2012
    Assignee: Hansen Corporation
    Inventor: Lincoln J. Dreher
  • Patent number: 8324774
    Abstract: A rotating electrical machine apparatus comprising a motor generator 10 having a stator (11) to which a plurality of coil groups are provided and a rotor (12), and a control apparatus (30) which controls a current supplied to the coil groups of the stator (11), wherein the stator (11) is provided with a stator friction portion (21) and the rotor (12) is provided with a rotor friction part (19), and the rotor (12) is movable between a connection position, in which the stator friction portion (21) and the rotor friction portion (19) are in contact with each other and the rotor (12) and the stator (11) are connected with each other, and a separation position, in which the stator friction portion (21) and the rotor friction portion (19) are separated from each other, and is constituted to move to the connection position when at least two coil groups among the plurality of coil groups are simultaneously excited, and the control apparatus (30) controls a current supplied to the coil groups so that at least two coil
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: December 4, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hirotatsu Kitabatake, Hiroaki Ebuchi, Hideaki Komada, Michinobu Suzuki, Tomohito Ono, Kensei Hata
  • Patent number: 8261625
    Abstract: A stepper actuator including a brake drum and a central gear mechanically connected thereto. The brake drum and the central gear are selectively rotatable in opposing first and second rotational directions. First and second actuation members are moveable through first and second actuation cycles to incrementally rotate the central gear. The actuation members engage and subsequently disengage the central gear as they move through their actuation cycles. The actuation members are configured to rotate the central gear during engagement therewith. A braking assembly is operatively connected to the first and second actuation members and is frictionally engaged to the brake drum to prevent rotation of the brake drum when the first and second actuation members are each in a retracted position as occurs when neither is moving through a corresponding actuation cycle.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: September 11, 2012
    Assignee: STI srl
    Inventors: Michele Picerno, Flavio Tondolo
  • Patent number: 8177040
    Abstract: In a disk brake for a vehicle, an electric motor is attached to a caliper body so as to exhibit a power for urging a friction pad toward a disk rotor. The electric motor includes a brush holder for holding brushes which contact a commutator at positions at even distances in a circumferential direction of an armature. Internal feed terminals are disposed in the brush holder so as to provide connection between the brushes and feed wires respectively leading to the brushes. A rotational angle detecting sensor is disposed in the brush holder so as to detect a rotational angle of the electric motor. The rotational angle detecting sensor is disposed in the brush holder on a side opposite from the internal feed terminals with respect to the armature. Thus, it is possible to improve assemblability of the rotational angle detecting sensor to the brush holder, and facilitate operation of connecting the feed wires to the brush holder.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: May 15, 2012
    Assignees: Nissin Kogyo Co., Ltd, Honda Motor Co., Ltd
    Inventors: Manabu Matsushita, Akihiko Koike
  • Publication number: 20120055740
    Abstract: An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterised in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.
    Type: Application
    Filed: January 29, 2010
    Publication date: March 8, 2012
    Applicant: Holmes Solutions Limited
    Inventors: Christopher James Allington, Andrew Karl Diehl, Bruce John Robertson
  • Publication number: 20120019087
    Abstract: A magnetic electron exciter includes a rotor adapted to be rotated within a selected range of rotational speeds, and having a plurality of magnets mounted therein selected distances from the rotational axis of the rotor. A plurality of coils are positioned adjacent to the rotor, whereby rotation of the rotor creates an electrical current in the coils. First and second electrodes are spaced apart a determined distance, and are electrically connected with the coils to create an arc between the electrodes when the rotor is rotated relative to the coils. The magnetic electron exciter can be used as a non-contact brake for machines, such as motor vehicles, wind turbines and the like.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 26, 2012
    Inventor: Johnnie L. Jones
  • Publication number: 20110298324
    Abstract: An electromagnetic non-contact brake may include an annular stator assembly including a predetermined number of poles formed about the stator assembly. A rotor assembly is disposed within the stator assembly and may include a selected number of poles formed about the rotor assembly. A shaft may extend through a center portion of the rotor assembly and be fixedly attached to the rotor assembly. An electrical connection is adapted to controllably apply electrical power to at least one of the stator assembly and the rotor assembly. The electrical power causes a plurality of magnetic fields to be simultaneously generated around at least one of the stator assembly and the rotor assembly by the poles. Each of the plurality of magnetic fields causes the poles of the stator assembly and the poles of the rotor assembly to be magnetically attracted to one another to substantially prevent the rotor assembly and the shaft from rotating.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 8, 2011
    Inventor: JAMES L. PECK, JR.
  • Patent number: 8058757
    Abstract: An electric motor (102) with passive integral brake (104) includes a stator (204) with one or more magnetic field controllable coils (206) and a rotor (208) with a rotor shaft (210) positioned within an inner diameter (212) of the stator (204). The rotor (208) is operable to rotate about a longitudinal axis (214) of the rotor shaft (210). The electric motor (102) with passive integral brake (104) also includes a brake shoe (302) positioned within the inner diameter (212) of the stator (204) along the longitudinal axis (214) of the rotor shaft (210). The brake shoe (302) is operable to apply a braking force to the rotor shaft (210) and remove the braking force from the rotor shaft (210) responsive to a magnetic field strength produced by the one or more magnetic field controllable coils (206). One or more springs (220) passively apply the braking force.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: November 15, 2011
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Richard A. Himmelmann
  • Publication number: 20110248588
    Abstract: Residual magnetic locks, brakes, rotation inhibitors, clutches, actuators, and latches. The residual magnetic devices can include a core housing and an armature. The residual magnetic devices can include a coil that receives a magnetization current to create an irreversible residual magnetic force between the core housing and the armature.
    Type: Application
    Filed: June 27, 2011
    Publication date: October 13, 2011
    Inventors: Steven J. Dimig, Gregory J. Organek, Michael G. Feucht
  • Patent number: 7999429
    Abstract: 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 case enclosing the rollers, an input shaft and an output shaft connected coaxially with the rollers through the case, respectively, and a magnetic fluid housed in the case to fill the gap. The apparatus includes an electromagnetic coil for generating magnetism, and a magnetic path of the magnetism generated by the electromagnetic coil is formed so that a magnetic field is generated from the drive roller or the driven roller toward the driven roller or the drive roller via the gap.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: August 16, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Ogawa, Akira Murakami
  • Patent number: 7958977
    Abstract: The invention relates to a mounting of one or more electromagnetically bleeding spring-loaded brakes (a, b) on a machine wall or the like. The invention is characterized in that the brakes are, while distributed over the periphery on the face, act upon an axially moving brake rotor (5) with continuous friction linings (6) on both sides (i.e. left and right), whereby braking (left) surface of the friction lining (6) and on the opposite side with the armature discs of the brakes on the second (right) friction lining (6).
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: June 14, 2011
    Inventors: Gunter Klingler, Harald Weiss, Johann Eberle, Christoph Dropmann
  • Patent number: 7944102
    Abstract: An electrical machine includes a stator having circumferentially arranged winding heads, with a winding head space being defined radially beneath the winding heads. Interacting with the stator is a rotor which has a rotatable laminated core. A magnetic brake is received in the winding head space and includes a magnet module having at least one permanent magnet which is axially resiliently fixed and constraint against rotation and which is magnetized in an axial direction, and an electromagnet which is arranged axially adjacent to the permanent magnet and securely fixed thereto. The electromagnet produces a magnetic field with a main direction oriented in an axial direction. Interacting with the at least one permanent magnet and the electromagnet is a ring-shaped armature which is secured directly and rigidly to the rotor so as to establish a fixed rotative engagement between the armature and the rotor.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: May 17, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Frank Eckert
  • Patent number: 7938237
    Abstract: A brake structure for a main shaft of a direct drive torque motor comprises a body, a direct drive torque motor, a main shaft and a brake assembly. The main shaft is provided for fixing the torque motor and the body, and the brake assembly is mounted between the body and the main shaft. An annular brake oil room of the brake assembly is positioned against the main shaft, and the brake seat subassembly has a thinner brake deformation wall formed between the annular brake oil room and the main shaft. The annular brake oil room utilizes its high pressure caused deformation to the brake deformation wall, thus achieving a braking effect by pressing the main shaft. Thereby, the present invention is easy to assemble, and not only can stop the main shaft quickly, but also has a greater locking force.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: May 10, 2011
    Assignee: Hiwin Mikrosystem Corp.
    Inventors: Fu-Yuan Cheng, Chih-Hsien Chao
  • Patent number: 7911101
    Abstract: In an electric motor of an SBW actuator, a rotor shaft is rotated upon energization of the motor. A rotor core is rotated integrally with the rotor shaft. A resilient member enables tilting or decentering of the rotor shaft upon application of a decentering force on the rotor shaft. A stator core contacts the rotor core when the rotor shaft is tilted or decentered.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: March 22, 2011
    Assignee: Denso Corporation
    Inventors: Kiyoshi Kimura, Shigeru Yoshiyama
  • Publication number: 20110025156
    Abstract: Machine for contactless fixing of a movement degree of freedom, having a primary part and a secondary part, wherein the primary part and the secondary part are designed such that a cogging force when no current is flowing in the machine is at least 50% of the maximum force of the machine.
    Type: Application
    Filed: August 2, 2010
    Publication date: February 3, 2011
    Applicant: WITTENSTEIN AG
    Inventors: Ingolf Groening, Ralf Kruse
  • Patent number: 7852183
    Abstract: A no-back device for a power drive unit is configured such that, during operation of the power drive unit, the no-back device does not supply magnetic or frictional force against power drive unit rotation. The no-back device is implemented either redundantly or no-redundantly, and includes a latch rotor and an electromagnet. In both embodiments, the latch rotor is coupled to the power drive unit to rotate therewith, and the electromagnet is coupled to receive a flow of current and, upon receipt thereof, generates a magnetic field force that opposes rotation of the latch rotor. In the redundant embodiment, the no-back device further includes one or more permanent magnets, and the magnetic field generated by the electromagnet selectively opposes or aids the magnetic field supplied by the permanent magnet(s).
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: December 14, 2010
    Assignee: Honeywell International Inc.
    Inventors: Calvin C. Potter, Casey Hanlon, Paul T. Wingett
  • Patent number: 7839252
    Abstract: A spool includes at least one bobbin and one winding wire, e.g., a winding wire lacquered for electrical insulation, the bobbin including at least one channel, e.g., one arranged as a pocket, at least one sleeve being electrically connected to the winding wire, the sleeve being electrically connected to an electrical line, e.g., a stranded conductor of a cable, the sleeve including deformable regions, for producing the electrical connections, a respectively deformable region being deformable such that a force-locking connection is provided and welding is able to be carried out.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: November 23, 2010
    Assignee: Sew-Eurodrive GmbH & Co. KG
    Inventors: Pascal Heinrich, Gerhard Flörchinger, Laurent Criqui, Jean-Pierre Lambling, Gerd Schüler
  • Patent number: 7772730
    Abstract: The present invention provides a magnetic wheel including a foundation body, a cover body, a fly wheel, a central axis, a drive motor, a drive gear assembly and two magnetic control strips. The drive gear assembly is driven by an output axis of the drive motor, enabling the swinging of the gear wheel of two magnetic control strips. The drive gear assembly has a gearshift unit, a coupling element and rear gear. The axial direction of the coupling element and rear gear is the same as the central axis of the magnetic wheel. The gear wheel of two magnetic control strips is mated with the rear gear through spur gear, thus making it easier to improve the manufacturing precision and drive efficiency and also reduce the manufacturing cost for better economic efficiency.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 10, 2010
    Assignee: Her Yuan Chyun Co., Ltd.
    Inventor: Hsien-Mo Lin
  • Patent number: 7745966
    Abstract: A plurality of fan blades are secured to a rotor assembly of a single directional motor. When the motor is powered on, a force generated by the fan blades pushes the rotor assembly in a direction of a low friction thrust interface. When the motor is backdriven in a direction opposite the powered direction, the force generated by the fan blades pushes the rotor assembly in a direction of a higher-friction thrust interface, causing a tapered surface of the pinion and a tapered surface of a bearing retainer to be pressed against each other to produce a frictional braking force. The backdriven speed of the motor and drive device is therefore reduced, improving the reliability of the motor assembly. The invention can be applied to motor actuators used to control air dampers and other valves in gas or fluid delivery systems. The invention can also be used to reduce water hammer in water delivery systems.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: June 29, 2010
    Assignee: Hansen Corporation
    Inventor: Lincoln J. Dreher
  • Patent number: 7732959
    Abstract: A rotational coupling device for use as a clutch and/or brake is provided having improved magnetic efficiency and structural integrity. A permanent magnet is coupled to one of a brake plate and an armature and axially aligned with a portion of the other for improved braking performance.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: June 8, 2010
    Assignee: Warner Electric Technology, LLC
    Inventor: James A. Pardee