Gearing Patents (Class 310/83)
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Publication number: 20120248910Abstract: A linear actuator, especially for telescopic lifting columns (7) comprising a reversible electric motor (16) and a transmission (17) located in a box-shaped housing (14). A Linear movable activation element (18), preferably a spindle unit (19-21) connected to the transmission (17) is secured to the housing (14)). The activation element is intended for moving an adjustable element, e.g. a table top in the structure into which the actuator should be incorporated. The housing (14) is equipped with internal reinforcements (32) for strengthening said housing in its longitudinal direction and possibly also in its transverse direction. Thus a linear actuator with sufficient rigidity for use in sitting/standing tables without cross member is achieved.Type: ApplicationFiled: November 25, 2010Publication date: October 4, 2012Inventor: Michael Lindekilde Randløv
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Patent number: 8274244Abstract: An actuator system for assisting extension of a biological joint is provided with a motor assembly, a rotary-to-linear mechanism, and an extension stop. The rotary-to-linear mechanism includes a screw that accepts rotational output of the motor assembly, and a nut that cooperates with the screw to convert rotational movement of the screw to linear movement of the nut. The extension stop is driven by linear movement of the nut in an extension direction to cause extension of the biological joint. The motor assembly, the rotary-to-linear mechanism and the extension stop cooperate to allow unpowered flexion of the joint. The system is configured without a flexion stop, and is configured such that the nut cannot drive the joint in a flexion direction. Methods of use are also disclosed.Type: GrantFiled: January 30, 2009Date of Patent: September 25, 2012Assignee: Tibion CorporationInventors: Robert W. Horst, Richard R. Marcus
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Publication number: 20120234856Abstract: A control circuit for a PMDC motor used in an ice delivery apparatus, the circuit including a double pole double throw relay that switches both sides of the circuit and peripheral circuitry connected between a power source and the double pole double throw relay to rectify the power source and power the PMDC motor.Type: ApplicationFiled: March 18, 2011Publication date: September 20, 2012Applicant: MERKLE-KORFF INDUSTRIES, INC.Inventors: Jeff CANNON, Athanase N. TSERGAS, Edward V. MINNICH, Stoyan STAEV
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Publication number: 20120223625Abstract: An assembly including a drive motor and a gear plate. The gear plate includes a seat for retaining the drive motor. The assembly also includes a motor cap having at least one pawl for snap-fitting into the seat. The assembly further includes at least one post, which is adapted to receive a gear.Type: ApplicationFiled: March 1, 2012Publication date: September 6, 2012Inventors: Robert Klemm, Wai Kei Leung
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Patent number: 8253289Abstract: An overload protection device using a rotatable arm rotatably connected to a driving wheel and a resilient member connecting the rotatable arm with the driving wheel for transmitting the torque outputted by a motor to the driving wheel, the resilient member is obviously deformed when the motor is operated in a overload condition to detach the rotatable arm from the motor for protecting the motor from the overload condition.Type: GrantFiled: August 26, 2009Date of Patent: August 28, 2012Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventor: Xiao-Guang Su
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Publication number: 20120212080Abstract: A permanent magnet motor has a rotor and a stator. The rotor has a shaft, a rotor core and commutator fixed to the shaft, and rotor windings wound about poles of the rotor core and electrically connected to the commutator. The stator has an axially extending round housing, a ring magnet member fixed to an inner surface of the round housing, an endcap, and at least one pair of brushes in sliding contact with the commutator. A chamber is formed by the housing and the endcap. The commutator is disposed in the chamber. A window lift device incorporating the motor is also provided.Type: ApplicationFiled: February 17, 2012Publication date: August 23, 2012Inventors: Mao Xiong Jiang, Yue Li, Jian Zhao, Hong Min Wei, Ke Lin Zhou, Xing Zhang
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Publication number: 20120212091Abstract: An electric machine in accordance with the principles of the present invention comprises a rotor having rotor coils, a stator having stator coils, and a rotatable shaft. The rotor rotor is circular and includes at least one torque transmitter in the form of at least one bevel gear contained thereon. The stator is circular and is operatively positioned relative to the rotor, the rotor coils and the stator coils causing the rotor to rotate relative to the stator. The rotatable output shaft has defined thereon a torque transmitter in the form of a bevel gear contained thereon. The rotatable output shaft bevel gear engages the at least one rotor bevel gear. Thus, an electric machine in accordance with the principles of the present invention has removed a standard electronic machine internal connection to leave the internal section formerly compromising the connective sections open.Type: ApplicationFiled: February 22, 2011Publication date: August 23, 2012Inventor: Paul Andrew Schaafsma
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Patent number: 8242648Abstract: A control circuit member provided in a motor is disclosed. The motor includes a motor main body having a rotary shaft and a gear housing integrated with the motor main body. The control circuit member includes a circuit substrate on which a rotation detecting element is mounted and a substrate support member. The circuit substrate is accommodated in a circuit accommodating portion in the gear housing. The substrate support member supports the circuit substrate inside the circuit accommodating portion. The control circuit member is configured to be insertable into the circuit accommodating portion along the axial direction of the rotary shaft. The circuit substrate is configured to be arrangeable inside the circuit accommodating portion while being inclined with respect to the axial direction of the rotary shaft, so as to cause the rotation detecting element to approach the detector magnet.Type: GrantFiled: December 30, 2009Date of Patent: August 14, 2012Assignee: Asmo Co., Ltd.Inventors: Nobuo Mizutani, Shingo Omori, Mitsuhiro Takada, Hiroyuki Takikawa
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Publication number: 20120198773Abstract: A linear gate drive assembly with a drive rail connectable to a gate panel. A linear drive portion having a toothed drive surface is coupled to a first drive surface of the drive rail and has teeth thereon with a first rolling tooth profile. A drive wheel is attached to one drive motor and engages the first drive surface to impart an axial drive force on the drive rail. Another drive wheel is attached to another drive motor and engages the second drive surface. The second drive wheel has teeth that mate with the first teeth and that define another rolling tooth profile corresponding to the first rolling tooth profile. Rotation of the second drive wheel imparts axial and normal forces via a rolling teeth interface for moving the drive rail and the gate panel.Type: ApplicationFiled: February 3, 2012Publication date: August 9, 2012Applicant: Hy-Security Gate, Inc.Inventors: David Younce, Geoffrey M. Pate, Brian G. DeNault, Steven A. Carlsen
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Publication number: 20120194018Abstract: This disclosure discloses a rotating electrical machine that is integrally formed with a reduction device having an input shaft and an output shaft and employs one of a field system and an armature as a rotor and the other of the field system and the armature as a stator, including a rotating shaft to which the rotor is fixed and that is coaxially connected to the input shaft of the reduction device, and a bearing support member configured to support bearings that rotatably support the input shaft of the reduction device, wherein the stator is provided to the bearing support member.Type: ApplicationFiled: January 24, 2012Publication date: August 2, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Nobukazu MIYAUCHI, Toshiyuki Yamagishi
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Publication number: 20120194020Abstract: A brush holder is provided in a metal yoke. The brush holder holds feeder brushes for supplying power to a commutator. The commutator and the feeder brushes are arranged outside the yoke housing as seen in a direction orthogonal to the axis of the yoke. As seen in the axial direction, proximal ends of the feeder brushes are arranged outside the inner circumferential surface of the yoke.Type: ApplicationFiled: January 19, 2012Publication date: August 2, 2012Inventor: Nobuo MIZUTANI
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Patent number: 8232700Abstract: Electric machines comprising a plurality of magnetized rotors, preferably including bi-pole magnets. The rotors are configured to drive and/or be driven by a common shaft, as for example by suitable configurations of gears. The rotors are magnetically indexed, in pairs, with respect to each other and to corresponding electrical windings, such that, when a current is passed through the one or more windings, the rotors provide phased rotary power to the common shaft; or, when torque is applied to the common shaft, a phased electrical output is provided to the windings.Type: GrantFiled: December 19, 2008Date of Patent: July 31, 2012Assignee: Pratt & Whitney Canada Corp.Inventor: Kevin A. Dooley
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Patent number: 8232694Abstract: A drive unit in particular for an actuating element of a motor vehicle, is described, which has a gear mechanism unit, a drive motor and a contacting unit, with the gear mechanism unit encompassing a first interface for a detachable attachment of the drive motor and a second interface for the detachable attachment of the contacting unit, and with the drive motor being energized by the contacting unit in the mounted condition. The interfaces of the gear mechanism unit are designed to energize the drive motor through the contacting unit, and a rotary sensor that can contact the contacting unit and can detect the rotation of a gear mechanism rotating element (for example 6) is provided. Such a drive unit is very flexible with regard to the applicable control- and/or regulating electronic system.Type: GrantFiled: May 11, 2007Date of Patent: July 31, 2012Assignee: Brose Fahrzeugteile GmbH & Co.Inventors: Hans-Ulrich Karsch, Michael Friedrich
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Patent number: 8231103Abstract: A flow control valve controls the flow rate of heated water supplied from a boiler. The valve can normally/reversely turn and control the flow rate in a pipeline using first and second one-way motors, and stops power for one motor when the other motor is rotated. The valve includes a motor assembly including the first and second motors that have power transmission shafts which rotate in opposite directions, a gear assembly including first and second planetary gears that receive power from the motors and a sun gear disposed between and engaged with the planetary gears, a clutch structure between the first planetary gear and motor, and the second planetary gear and motor, that transmits or stops power, and a valve actuator including a shaft that reciprocates up/down by rotation of the sun gear and a valve unit fitted on the lower portion of the shaft that opens/closes the valve.Type: GrantFiled: January 16, 2008Date of Patent: July 31, 2012Assignee: Kyungdong Navien Co.Inventor: Tae-Sik Min
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Publication number: 20120187787Abstract: A motor may include a motor housing; a rotor which is provided with a rotation shaft rotatably held with respect to the motor housing, a magnet held by the rotation shaft, and a back yoke facing the magnet on one side in a motor axial line direction; a stator board which is provided with a stator coil facing the magnet on an other side in the motor axial line direction; an auxiliary yoke mounting member which is provided with a tube part to which the rotation shaft fitted and fixed; and an auxiliary yoke which is provided in a portion of the auxiliary yoke mounting member whose diameter is enlarged from the tube part and which faces the stator board on the other side in the motor axial line direction.Type: ApplicationFiled: January 18, 2012Publication date: July 26, 2012Applicant: NIDEC SANKYO CORPORATIONInventor: Yutaka SAITO
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Patent number: 8227945Abstract: An electric stepper motor having a linear actuator arrangement consisting of an extended lead screw terminating at one end via a conical section and a threaded rod. The threaded rod at the end of the lead screw is engaged within the threaded aperture after completion of the stepper motor assembly to provide linear actuator function.Type: GrantFiled: December 23, 2011Date of Patent: July 24, 2012Assignee: iMS Schneider Electric MotionInventors: Russell A. Gibas, Don W. Dienst
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Patent number: 8227949Abstract: The invention relates to a linear actuator (1), at least including a stator (3) that is placed within a cartridge-like casing (2), a bearing ring (4) with a bearing seat for mounting a rotor (5) with an antifriction bearing (6), a spindle (7) that on its drive side (7.1) is together with the rotor (5) designed as motion transformer to transform the rotary motion into a translatory motion and a flange (9) that closes the casing (2) on the output side (8) of the linear actuator (1), the flange (9) being equipped with an anti-rotation locking device for the spindle output side (7.2) that penetrates the flange (9). According to the invention the cartridge-like casing (2) is provided with several formed bending tongues (10.1, 10.2), whereby in assembled condition first bending tongues (10.1) engage with groove-like recesses (11) of the bearing ring (4) of the antifriction bearing (6) and second bending tongues (10.Type: GrantFiled: February 9, 2010Date of Patent: July 24, 2012Assignee: Saia-Burgess Dresden GmbHInventors: Thomas MĂĽller, Andreas Kurtz, Klaus Bachmann
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Publication number: 20120176007Abstract: An electric machine device includes: a rotor including a rotor magnet arranged along the outer circumference of a center shaft; a stator arranged on the outer circumference of the rotor; a rotating mechanism coupled to the rotor and used for transmission of rotation driving force; and a load connecting section that connects the rotating mechanism and a load. In the rotor, a housing space that is opened on one side in an axis direction of the center shaft and houses at least a part of the rotating mechanism is formed between the center shaft and the rotor magnet. The rotating mechanism includes: an input section connected to or formed integrally with the rotor; a fixed section connected to or formed integrally with the stator; and an output section connected to or formed integrally with the load connecting section. The rotting mechanism functions as a speed-increasing gear or a reduction gear.Type: ApplicationFiled: January 10, 2012Publication date: July 12, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Kesatoshi TAKEUCHI
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Publication number: 20120175982Abstract: The disclosure discloses a rotating electrical machine that is integrally formed with a reduction device having an input shaft to which a roller gear cam is provided and an output shaft to which cam followers configured to sequentially engage with the roller gear cam is provided on an outer periphery, extending along a direction orthogonal to the input shaft, and is configured to employ one of a field system or an armature as a rotator and the other of the field system or the armature as a stator, including a rotating shaft that is fixed to the rotator and integrally formed as a single shaft with the input shaft of the reduction device.Type: ApplicationFiled: January 11, 2012Publication date: July 12, 2012Applicants: Sankyo Seisakusho Co., Kabushiki Kaisha Yaskawa DenkiInventors: Toshiyuki YAMAGISHI, Nobukazu MIYAUCHI, Kenji MATSUURA, Toshinao KATO, Atsushi OISHI, Toshiki TAKAHASHI
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Publication number: 20120161562Abstract: An over shaft rotary actuator with an internal clamp arrangement is provided. The actuator includes an internal clamp arrangement carried within a housing. A drive train and a motor also carried within the housing and mechanically coupled to the internal clamp arrangement. The internal clamp arrangement is centered on the plane that a driving torque is applied to the internal clamp arrangement to rotate a shaft.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: SCHNEIDER ELECTRIC BUILDINGS, LLCInventor: William P. Windgassen
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Publication number: 20120161559Abstract: A motor includes a motor portion and a speed reducing portion. In the motor portion, a brush holder that holds a feeder brush for feeding electric power to a commutator is arranged at an opening of a yoke. The speed reducing portion has a speed reducing mechanism, which is arranged in a gear housing. The speed reducing mechanism outputs drive force produced by a rotary shaft of the motor portion with the rotating speed of the rotary shaft reduced by the speed reducing mechanism. A brush holder includes a support pillar projecting toward the gear housing and an urging member that urges the feeder brush against the commutator. A positioning portion for positioning the brush holder with respect to the gear housing in a direction perpendicular to the axial direction is formed at a distal end portion of the support pillar.Type: ApplicationFiled: December 20, 2011Publication date: June 28, 2012Applicant: Asmo Co., Ltd.Inventor: Nobuo Mizutani
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Publication number: 20120153756Abstract: Disclosed is a leveling motor, which removes a gap from a threaded portion converting a rotating force of the leveling motor into an axial feeding force to minimize a movement error and enable a leveling operation to be precisely controlled, and includes a housing, a shaft axially moving in the housing and having on an outer circumference thereof a threaded portion, a threaded pipe provided on an outer circumference of the shaft and having on an inner circumference thereof a grooved portion that corresponds to the threaded portion, and an elastic member supplying an upward elastic force to the shaft, whereby the threaded portion axially comes into close contact with the grooved portion by the elastic force of the elastic member.Type: ApplicationFiled: December 20, 2011Publication date: June 21, 2012Applicant: LG Innotek Co., Ltd.Inventor: Suhyoung Lee
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Publication number: 20120153755Abstract: An actuator for an electric adjusting device of a vehicle seat has several adjusting functions. The actuator includes a frame, an electric drive motor disposed on the frame, having an output shaft and a pinion gear disposed on the output shaft, and rotating between a first position and a second position, a first toothed wheel disposed on the frame and engaging with a pinion gear at a first position of the drive motor, a second toothed wheel disposed on the frame and engaging with the pinion gear at a second position of the drive motor, and an adjusting unit disposed on the frame and selectively moving an electric or mechanical actuating part and a motor to the first position or the second position.Type: ApplicationFiled: December 20, 2011Publication date: June 21, 2012Applicants: C. Rob. Hammerstein GmbH & Co. KG, Hyundai Motor CompanyInventors: Becker Burckhard, Werner Schwanse, Van-Toan Ho
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Publication number: 20120146439Abstract: An electric stepper motor having a linear actuator arrangement consisting of an extended lead screw terminating at one end via a conical section and a threaded rod. The threaded rod at the end of the lead screw is engaged within the threaded aperture after completion of the stepper motor assembly to provide linear actuator function.Type: ApplicationFiled: December 23, 2011Publication date: June 14, 2012Inventors: Russell A. Gibas, Don W. Dienst
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Publication number: 20120139372Abstract: A compact, light permanent magnet motor with low torque pulsations is obtained by reducing a cogging torque resulting from variations at the end of a rotor, such as an error in attachment position and a variation in magnet characteristic of the permanent magnets. A permanent magnet rotating electrical machine includes a rotor having a rotor core and plural magnetic poles formed of permanent magnets provided to the rotor core, and a stator having plural teeth opposing the plural magnetic poles, a stator core provided with slots in which to store an armature winding wire wound around the teeth, and supplemental grooves provided to the teeth in portions opposing the rotor in an axial direction of the stator core.Type: ApplicationFiled: November 24, 2009Publication date: June 7, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masatsugu Nakano, Toshihiro Matsunaga, Kazuhisa Takashima, Satoru Akutsu, Yusuke Morita
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Patent number: 8193668Abstract: Detecting a rotation state of a worm wheel side with good accuracy while allowing play between an armature-shaft-side coupling member and a worm-shaft-side coupling member. The armature-shaft-side coupling member is provided together rotatably to the other end of an armature shaft; the worm-shaft-side coupling member is provided together rotatably to one end of a worm shaft; the armature-shaft-side coupling member and the worm-shaft-side coupling member are coupled together rotatably; and a sensor magnet is provided together rotatably to the worm-shaft-side coupling member. Therefore, the rotation state of the worm shaft can be detected with good accuracy. Even if the play is provided between the armature-shaft-side coupling member and the worm-shaft-side coupling member, this play does not affect the accuracy of detection of the rotation state of the worm shaft, thereby bringing no problem regarding accuracy of detection of a rotation state of a worm wheel side.Type: GrantFiled: December 23, 2009Date of Patent: June 5, 2012Assignee: Mitsuba CorporationInventors: Hiroyuki Uchimura, Hiroyuki Shibusawa, Masaki Mita
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Patent number: 8188628Abstract: In order to connect an angle measuring device to a brushless direct-current motor, a coupling is used, the coupling halves (10, 28) of which are each attached to the rotor (46) of the motor and/or the rotor (42) of the angle measuring device. Instead of using a coupling that is rotationally symmetrical at arbitrary angular positions as in the prior art, a coupling is used in which the coupling halves (10, 28) can be connected to one another only in a finite number of relative angular positions. An adjustment must be made before the coupling halves (10, 28) are attached to the respective rotors (46, 52). This allows all subsequent adjustment to be omitted, for example, even for maintenance work.Type: GrantFiled: March 13, 2008Date of Patent: May 29, 2012Assignee: Siemens AktiengesellschaftInventors: Hubertus Bähr, Rainer Eckert, Udo Grossmann, Hans-Joachim Müller
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Publication number: 20120125149Abstract: A motor starter includes a housing having an exterior surface and an interior surface that defines an interior portion, a field coil mounted to the interior surface of the housing, and an armature is supported within the housing and rotatable relative to the field coil. The armature includes a shaft having an exterior surface and a hollow interior. A commutator is operatively connected to the shaft, and a drive system is arranged within the hollow interior of the shaft. The drive system includes a gear system. An output shaft is operatively connected to the gear system.Type: ApplicationFiled: November 19, 2010Publication date: May 24, 2012Applicant: REMY TECHNOLOGIES, L.L.C.Inventors: Balazs Palfai, Attila Nagy
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Publication number: 20120119627Abstract: An electric motor includes a stator and a rotor rotatably installed in the stator. The stator includes a pair of end caps disposed at opposite ends thereof, and a pair of bearings respectively fixed to outer surfaces of the end caps from outside thereof. The rotor includes a shaft pivotally supported by the bearings.Type: ApplicationFiled: November 15, 2011Publication date: May 17, 2012Inventors: James Ching Sik LAU, Xiao Jun Yang, Kwong Yip Poon
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Publication number: 20120119601Abstract: In a brush holder accommodating part 26d of a gear housing 26, paired flat surface parts 26c and paired curved parts 26b are alternately disposed so as to be formed into an elliptical shape, one of the paired flat surface parts is formed with first heat sinks 26i, and two brushes 20 and 20 mounted on a brush holder unit 19 accommodated in the brush holder accommodating part 26d are disposed near the first heat sinks 26i.Type: ApplicationFiled: July 26, 2010Publication date: May 17, 2012Inventors: Hiroto Tanaka, Takeshi Kanai, Masaaki Kimura, Koji Tsuchiya
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Publication number: 20120112585Abstract: An electric motor includes a motor casing formed with a shaft insertion hole and a motor output shaft extending in the shaft insertion hole and projecting to a speed reducing mechanism. An annular oil seal is disposed between the shaft insertion hole and the motor output shaft and the annular oil seal includes an annular seal retainer buried in the annular oil seal for reinforcement. A C-shaped stopper member extending circumferentially from a first end to a second end spaced from the first end, is held in a holding portion or a fitting groove of the shaft insertion hole, and arranged to prevent movement of the oil seal toward the speed reducing mechanism. The stopper member includes a plurality of beam segments confronting the seal retainer from an axial direction of the motor output shaft.Type: ApplicationFiled: October 19, 2011Publication date: May 10, 2012Applicant: Hitachi Automotive Systems, Ltd.Inventors: Mikihiro KAJIURA, Shinichi Kawada, Kotofumi Yanai, Hiroyuki Nemoto
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Patent number: 8169111Abstract: A brushless motor has a stator, a rotor rotatably disposed in an inner circumferential portion of the stator, and a resolver configured to detect a rotational position of the rotor with respect to the stator. The resolver has a resolver stator disposed at a fixed circumferential position with respect to the stator, and a resolver rotor disposed at a fixed circumferential position with respect to the rotor.Type: GrantFiled: December 13, 2007Date of Patent: May 1, 2012Assignee: Showa CorporationInventor: Hideo Yoshimura
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Patent number: 8159101Abstract: To provide a driving force transmission mechanism in which the thickness can be reduced as well as the positioning between a driven shaft, a driven structure, and a motor shaft of a motor is easy. The driving force transmission mechanism as disclosed includes a plate through which a reference hole is pierced, a driven shaft vertically standing with respect to an inner surface on the side of the inner surface of the plate, a driven gear pivotally provided around the driven shaft, a bracket fixed to the plate so as to cover the reference hole on the side of the inner surface of the plate, and a stepping motor protruding a motor shaft toward the reference hole, being fixed to the bracket. The motor shaft is positioned through the reference hole with driving teeth formed at the motor shaft to be directly engaged with the driven gear.Type: GrantFiled: June 5, 2008Date of Patent: April 17, 2012Assignee: Brother Kogyo Kabushiki KaishaInventor: Daisuke Ogawa
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Patent number: 8142318Abstract: An apparatus, system, and method are disclosed to adjust input to output ratios with a planetary gear system. The apparatus comprises a sun gear that receives rotational force from a first input. A plurality of planet gears encircle the sun gear and operably connect with the sun gear. A planet gear carrier connects to the planet gears and transfers rotational energy to an output. A ring gear encircles the planet gears. The ring gear is a stator of an electric motor and rotational motion of the stator is a second input. The ring gear contains permanent magnets that align with the coils of the stator. The interaction of the permanent magnets and the coils provide the second input which adjusts rotational input to output torque and speed ratios.Type: GrantFiled: August 13, 2008Date of Patent: March 27, 2012Inventor: Denis L. Palmer
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Publication number: 20120068472Abstract: Electrical machines, wind turbines, and methods of operating an electrical machine. The electrical machine includes first and second rotatable members that are configured to convert mechanical energy received from the wind turbine rotor into electrical energy. The first rotatable member is coupled with the wind turbine rotor and the second rotatable member is coupled by a gear train with the wind turbine rotor. The gear train, which is driven by rotation of the wind turbine rotor, rotates the second rotatable member relative to the first rotatable member in a direction counter to a direction of rotation of the first rotatable member. The electrical machine may be a generator of the wind turbine.Type: ApplicationFiled: September 17, 2010Publication date: March 22, 2012Applicant: VESTAS WIND SYSTEMS A/SInventor: Jörg Wadehn
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Patent number: 8138646Abstract: At the time of assembling an electric motor, plain bearings are installed over a worm shaft to form a shaft assembly. Then, the worm shaft together with the plain bearings is inserted into a gear housing in an inserting direction, which is generally parallel to an axial direction of the worm shaft, such that each of the plain bearings is press fitted into a corresponding installation part of the housing.Type: GrantFiled: December 16, 2008Date of Patent: March 20, 2012Assignee: ASMO Co., Ltd.Inventors: Nakatsune Shirai, Hidenori Ishihara, Tomoki Yamashita, Hiroaki Yamamoto, Katsumi Endo
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Patent number: 8132480Abstract: A pump gear includes a pump gear body having involute teeth that each have an involute surface that extends between a tooth tip and a tooth base. The involute surface includes at least reference points A-D, with reference point A near the base, reference point D near the tip, reference point B between reference points A and D, and reference point C between reference points B and D. The reference points A-D have associated respective roll angles, ?A-D, between a corresponding first line that is perpendicular to the involute surface at the given reference point A-D, and a second line that is tangent at a reference point that lies on a terminal end of the involute surface at the tooth base to a reference base circle having a center origin at the center axis.Type: GrantFiled: May 6, 2009Date of Patent: March 13, 2012Assignee: Hamilton Sundstrand CorporationInventors: Edward C. Allen, Andrew P. Grosskopf, Brady A. Manogue, Eric A. Brust
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Publication number: 20120049675Abstract: A differential comprises a differential case and electrical generator. The electrical generator comprises a first portion that is supported by the differential case and a second portion that is disposed in the differential case. The electrical generator is responsive to rotation of the differential case for generating electrical power. In another embodiment, the differential may further comprise a differential gear set, and the electrical generator comprises a first portion that is supported by the differential gear set and a second portion that is disposed in the differential case in accordance with an embodiment of the invention. The electrical generator is responsive to movement of the differential gear set for generating electrical power. In another embodiment, an axle assembly includes a differential case and axle housing that together function as an electrical generator. The rotation of the differential case generates electrical power.Type: ApplicationFiled: August 27, 2010Publication date: March 1, 2012Applicant: Eaton CorporationInventors: FRANK JAMES VARGO, Gregory L. Heatwole
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Publication number: 20120043841Abstract: A transmission having a plurality of tilting balls and opposing input and output discs provides an infinite number of speed combinations over its transmission ratio range. The transmission provides multiple powerpaths and can be combined with electrical components to provide motor/generator functionality, which reduces the overall size and complexity of the motor and transmission compared to when they are constructed separately. In one embodiment, rotatable components of a continuously variable transmission are coupled separately to an electrical rotor and to an electrical stator so that the rotor and stator rotate simultaneously in opposite directions relative to one another. In other embodiments, an electrical rotor is configured to transfer torque to or from a disc that is in contact with a plurality of speed adjusters, while an electrical stator is configured to transfer torque to a shaft that is operationally coupled to the speed adjusters via an idler.Type: ApplicationFiled: November 2, 2011Publication date: February 23, 2012Applicant: FALLBROOK TECHNOLOGIES INC.Inventor: Donald C. Miller
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Publication number: 20120043840Abstract: In an electric motor, permanent magnets are disposed on flat sections of a peripheral wall of the yoke, which is formed to be polygonal seen in plan view in the axial direction, a first bearing section which rotatably supports one end of the rotary shaft is integrally formed on a bottom part of the yoke, and a brush holder accommodating section capable of accommodating a brush holder unit that holds the brushes is integrally formed at an opening of the yoke.Type: ApplicationFiled: April 28, 2010Publication date: February 23, 2012Inventors: Tomohiko Annaka, Satoru Negishi, Naoki Shioda, Gensaku Yamakami
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Publication number: 20120032541Abstract: A brush DC motor with reduction mechanism includes: a brush DC motor including a motor case, a stator section and a rotor section having a substantially cylindrical core, the stator section and the rotor section being received in the motor case; and a first reducing section drivable by the motor. The first reducing section includes a first sun gear, an external ring gear positioned around the sun gear and several planetary gears held between the external ring gear and the sun gear and engaged with the sun gear and the external ring gear. The first reducing section further includes a planetary carrier for locating the planetary gears in their true positions. Multiple parallel linear splines are formed on a circumference of the core at intervals. One end of the core with the splines formed on the circumference of the end serves as the sun gear of the first reducing section.Type: ApplicationFiled: August 5, 2010Publication date: February 9, 2012Inventors: Guan-Chen CHEN, Hsin-An CHIANG
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Publication number: 20120025645Abstract: An electric starter motor for an internal combustion engine includes a rotatable output axle, a driving member mounted around the output axle, an output gear rotatably mounted around the output axle, and a friction member sandwiched between the output gear and the driving portion of the driving member. The output gear is slidable along the output axle. The hub of the driving member extends through the friction member and into the output gear.Type: ApplicationFiled: August 2, 2011Publication date: February 2, 2012Inventors: Po Wah CHAN, Kam Sum Wong, Yong Zhou
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Publication number: 20120025644Abstract: An electric motor having a speed change function is configured to differentiate a rotational speed of a rotor from a rotational speed of an output shaft outputting a torque transmitted from the rotor. The electric motor includes: a stator coil arranged on an inner circumferential face of a cylindrical outer case; a cylindrical rotor which is arranged in an inner circumferential side of the stator coil, and which is adapted to generate a torque by receiving a magnetic force generated by the stator coil; and a continuously variable transmission mechanism, which is arranged in an inner circumferential side of the rotor, and which is adapted to continuously vary a ratio between a rotational speed of an input member connected with the rotor, and a rotational speed of an output member connected with the output shaft and rotated by the torque from the input member.Type: ApplicationFiled: April 21, 2009Publication date: February 2, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Ogawa, Daisuke Tomomatsu, Akira Murakami
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Publication number: 20120025543Abstract: A linear hydraulic and generator coupling apparatus for transferring and manipulating power. The apparatus has an electrical system, a hydraulic system and a gear system. In operation, the electrical system directs the hydraulic system to force the rack of the gear system into horizontal motion. The gear system transfers the linear kinetic energy into angular momentum, and from there into electrical energy via selectively engaging alternating gears. The gear system preferably has two sets of gears that are engaged with the electrical system by selectively sliding the gears into position.Type: ApplicationFiled: October 6, 2011Publication date: February 2, 2012Inventor: Ed Gilbert, JR.
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Publication number: 20120025677Abstract: In a motor, a motor case includes a first case and a second case separable from each other in a direction of an axis of a rotation shaft of a rotor. The first case and the second case each have cut-away portions extending parallel to the axis from a separation edge (open side edge) thereof. The separation edges of the first and second cases each have abutment portions not formed with the cut-away portions, and the abutment portions of the first case respectively abut against the abutment portions of the second case. The cut-away portions cooperatively define a plurality of windows disposed in a periphery of the motor case. The stator has a plurality of bulges projecting radially outward from a peripheral surface thereof in association with the windows.Type: ApplicationFiled: June 24, 2011Publication date: February 2, 2012Applicants: Sanyo Consumer Electronics Co., Ltd., Sanyo Electric Co., Ltd.Inventor: Ryohei ADACHI
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Patent number: 8106549Abstract: A motor which can be mounted in an endoscope probe without bending an electric power supply wire in an endoscope probe body, and an endoscope probe using the motor are provided. The motor includes a magnet, a field coil, a housing, an electric power supply wire, and a shaft. A lead wire from the field coil is connected to the electric power supply wire. A cutout is provided in a housing end, and the electric power supply wire is received along the cutout and led out to the outside of the motor in the direction in which a shaft projects. When the motor is mounted in the endoscope probe, the motor is placed in the endoscope probe body so that the shaft projects in the direction opposite to the direction of the front end of the endoscope probe, and the electric power supply wire, which is led out to the outside of the motor, is routed along the longitudinal direction of the endoscope probe.Type: GrantFiled: January 30, 2008Date of Patent: January 31, 2012Assignee: Namiki Seimitsu Houseki Kabushiki KaishaInventors: Yukiharu Shimizu, Kazuya Nakamura, Tsuyoshi Takano
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Patent number: 8102087Abstract: A drive device includes a rotating electrical machine; a planetary gear unit positioned radially inside the rotating electrical machine so as to axially overlap the rotating electrical machine; a through shaft extending radially inside and through a sun gear of the planetary gear unit; and a case that accommodates the rotating electrical machine and the planetary gear unit. The through shaft is supported by the case on both axial sides of the planetary gear unit, and a rotor of the rotating electrical machine is connected integrally with the sun gear and is rotatably supported at two axial positions, the rotor is supported at a first axial position of the two axial positions by the case, and the rotor is supported at a second axial position of the two axial positions at a position radially inside the sun gear by the through shaft.Type: GrantFiled: May 11, 2009Date of Patent: January 24, 2012Assignee: Aisin AW Co., Ltd.Inventors: Yoshihisa Yamamoto, Natsuki Sada, Tomohiko Ito
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Publication number: 20120013211Abstract: An electric machine includes a stator mounted within the housing, and a transmission member mounted within the housing and surrounded at least in part by the stator. The transmission member includes a gear mechanism operatively coupled to an output shaft. The transmission mechanism is rotatable relative to the stator.Type: ApplicationFiled: July 16, 2010Publication date: January 19, 2012Applicant: REMY TECHNOLOGIES, L.L.C.Inventors: Bradley D. Chamberlin, Balazs Palfai
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Publication number: 20110316374Abstract: There is provided an actuator including a motor and a case adapted to house the motor. In the actuator, an output shaft of the motor is supported by a structured configured such that an elastic member is disposed between the case and at least one end of the output shaft, wherein the elastic member is in contact with a portion of the case in an engaging manner whereby the elastic member is prevented from shifting relative to the case in the rotation direction of the output shaft, and also wherein the elastic member is in contact with a portion of the motor in an engaging manner whereby a body of the motor is prevented from shifting relative to the elastic member in the rotation direction of the output shaft.Type: ApplicationFiled: June 21, 2011Publication date: December 29, 2011Applicant: MINEBEA CO., LTD.Inventors: Haruka MIYAJI, Tomoyuki SUZUKI, Masaki KAGAWA, Takayuki MATSUI
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Publication number: 20110296812Abstract: A thrust reverser actuation system includes a plurality of actuators, a power drive unit, and a gear set. Each actuator is coupled to receive an actuator input torque and is configured, upon receipt of the actuator input torque, to move between a stowed position and a deployed position. The power drive unit has only one output shaft, and is configured to supply a drive torque via the output shaft. The gear set is connected to the output shaft and is coupled to each of the actuators. The gear set is configured to receive the drive torque via the output shaft and to supply the actuator input torque to each of the actuators.Type: ApplicationFiled: June 8, 2010Publication date: December 8, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Steve Abel, Tony Libera