Gearing Patents (Class 310/83)
  • Publication number: 20110115320
    Abstract: A planetary gear assembly includes a ring gear configured for connection to a rotor of an electric motor when in a first position and configured for connection to a housing of the electric motor when in a second position, a sun gear configured for connection to the housing when the ring gear is in the first position and configured for connection to the rotor when the ring gear is in the second position, and a plurality of planet gears configured to mesh with the ring gear and the sun gear.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 19, 2011
    Applicant: REMY TECHNOLOGIES, LLC
    Inventors: Balazs Palfai, Bradley D. Chamberlin, Larry A. Kubes
  • Publication number: 20110115321
    Abstract: An electric motor assembly includes a stator defining a first interior space, a rotor positioned within the first interior space and configured for rotation relative to the stator, the rotor defining a second interior space, and a planetary gear assembly associated with the rotor and at least partially positioned within the second interior space.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 19, 2011
    Applicant: REMY TECHNOLOGIES, LLC
    Inventors: Bradley D. Chamberlin, Balazs Palfai, Larry A. Kubes
  • Publication number: 20110115319
    Abstract: Electric actuators having internal load apparatus are described herein. An example electric actuator having an internal load apparatus described herein includes a housing defining a cavity to receive a drive system and a drive shaft operatively coupled to the drive system. Rotation of the drive system in a first rotational direction causes the drive shaft to move in a first rectilinear direction and rotation of the drive system in a second rotational direction causes the drive shaft to move in a second rectilinear direction opposite the first rectilinear direction. A biasing element is operatively coupled to the drive system such that least a portion of the drive system moves axially toward the biasing element to deflect the biasing element when the drive shaft reaches an end of stroke position to provide a load to the drive shaft when electric power to the electric actuator is removed.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Inventors: Ross Arthur Schade, Thomas Pesek, John Stanley Bandas
  • Patent number: 7944099
    Abstract: Provided is a starter that can ensure stable insulation and exhibits excellent leakage resistance. The starter includes: a starting motor realized with a dc motor that has a commutator, positive brushes which are disposed around the commutator to abut on the commutator and connected to an external power supply, negative brushes, which are opposed to the positive brushes, stored in a bracket bearing one end of a rotation shaft; and a starting switch that is mounted on the starting motor and electrically connects or disconnects the external power supply to or from the positive brushes. When an engine is started, the starting motor is driven with the external power supply via the starting switch, and the starting motor is mechanically coupled to the engine. Herein, the starting motor has an insulating member disposed only on the internal surface of the bracket neighboring the positive brushes.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: May 17, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hayato Yamauchi, Haruki Nakayama
  • Publication number: 20110109179
    Abstract: A power plant which is capable of reducing the size and costs thereof and attaining high driving efficiency. In the power plant 1, the ratio between the number of first armature magnetic poles that form a first rotating magnetic field generated by a first stator 23 of a first rotating machine 21, the number of first magnetic poles 24a of a first rotor 24, and the number of first soft magnetic material elements 25a of a second rotor 25 disposed between the two 23 and 24 is set to 1:m:(1+m)/2 (m?1.0), and the ratio between the number of second armature magnetic poles that form a second rotating magnetic field generated by a second stator 33 of a second rotating machine 31, the number of second magnetic poles 34a of a third rotor 34, and the number of second soft magnetic material elements 35a of a fourth rotor 35 disposed between the two 33 and 34 is set to 1:n:(1+n)/2 (n?1.0). The two stators 23 and 33 are connected to each other.
    Type: Application
    Filed: June 12, 2009
    Publication date: May 12, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Shigemitsu Akutsu, Satoyoshi Oya, Kota Kasaoka, Noriyuki Abe
  • Publication number: 20110094806
    Abstract: An electric drive module for a motor vehicle includes an electric motor assembly having a cartridge housing containing a stator, a rotor, and a rotor shaft. The rotor shaft is supported by the cartridge housing. The electric motor assembly is positioned within an axle housing. A reduction unit includes an input member being driven by the rotor shaft and includes an output member driven at a reduced speed relative to the input member. A differential assembly includes an input driven by the output member, a first differential output driving a first output shaft, and a second differential output driving a second output shaft.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 28, 2011
    Inventors: Noel R. Mack, Harminder Mann
  • Publication number: 20110095629
    Abstract: Disclosed is a step actuator apparatus. The step actuator includes a step actuator including a housing, a stator installed in the housing, a rotor rotating by a reaction with the stator and a screw member coupled to the rotor and moving linearly according to rotation of the rotor; and a circuit board module including a circuit board electrically connected to the step actuator and a case for supporting the circuit board. The housing has a first opening. The case includes a plurality of hooks inserted into the first opening.
    Type: Application
    Filed: November 3, 2008
    Publication date: April 28, 2011
    Inventor: Hong Kon Lee
  • Patent number: 7926381
    Abstract: A gear set for a generator includes a first gear having a first set of involute teeth and a second gear having a second set of involute teeth circumferentially located about a center axis of rotation. Each set of involute teeth includes respective roll angles, ?A-D. For a diametrically smaller one of the first gear and the second gear the roll angle ?A is 1.51°-3.51°, the roll angle ?B is 7.64°-9.64°, the roll angle ?C is 26.03°-28.03°, and the roll angle ?D is 32.16°-34.16°, and for a diametrically larger one of the first gear and the second gear the roll angle ?A is 15.02°-17.02°, the roll angle ?B is 16.7°-18.7°, the roll angle ?C is 21.73°-23.73°, and the roll angle ?D is 23.41°-25.41°.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: April 19, 2011
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Andrew P. Grosskopf, Eric A. Brust
  • Patent number: 7919891
    Abstract: A directed flux motor described utilizes the directed magnetic flux of at least one magnet through ferrous material to drive different planetary gear sets to achieve capabilities in six actuated shafts that are grouped three to a side of the motor. The flux motor also utilizes an interwoven magnet configuration which reduces the overall size of the motor. The motor allows for simple changes to modify the torque to speed ratio of the gearing contained within the motor as well as simple configurations for any number of output shafts up to six. The changes allow for improved manufacturability and reliability within the design.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: April 5, 2011
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Andrew Wilson, Andrew Punnoose, Katherine Strausser, Neil Parikh
  • Patent number: 7915773
    Abstract: A robot includes a plurality of motors that drive respective joint shafts and gas-tight chambers in which the motors are disposed. The robot is placed in a second ambience, and at least one of the joint shafts is provided with a hollow motor integrated with a reduction gear.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: March 29, 2011
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventor: Shingi Takahashi
  • Publication number: 20110068663
    Abstract: An electric drive mechanism for a body, wherein the body has a plurality of load bearing track engaging wheels that allow the body to move back and forth along a track. An electric motor drives a non-load bearing drive wheel that is attached with respect to the body so that it engages a stationary surface adjacent the body through a drive coupling means between the electric motor and the drive wheel. Actuation of the electric motor causes rotation of the drive wheel which moves the body along the track. Typically a first controller controls the movement of the body in one direction and a second controller controls the movement of the body in the other direction. Other features include a low power warning system, the inoperability of other motors when one is being operated and a disable facility if a motor has not been active for some time.
    Type: Application
    Filed: August 18, 2008
    Publication date: March 24, 2011
    Inventors: Brian Maurice Parker, George Giles Campbell
  • 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: 20110062842
    Abstract: The invention relates to a furniture drive for driving a movable piece of furniture, comprising an electric motor, an actuator that can be moved back and forth between two end positions to apply a force on the piece of furniture to be driven, and a gearbox connected between the electric motor and actuator, the gearbox having at least one gear stage that is configured as an eccentric gearbox and comprising two gear wheels that mesh with each other, characterized in that one of the two gear wheels (7, 8) is firmly connected or coupled to the actuator (4) and the other gear wheel (7, 8) is coupled to the electric motor (3) such that the eccentric gearbox (6) has two limit positions, which correspond to the end positions of the actuator (4), and upon a rotation of the gear wheels (7, 8), starting from a first of the two limit positions to the other limit position, the gear ratio decreases steadily.
    Type: Application
    Filed: November 5, 2010
    Publication date: March 17, 2011
    Inventors: Edgar HUBER, Gerald FRIESENECKER
  • Publication number: 20110057526
    Abstract: A brush holder is placed between a yoke housing and a gear housing and includes a holder member and a base member. The holder member is installed to an opening of the yoke housing and holds a plurality of brushes. The base member is installed to the holder member and includes a connector, which is adapted to connect with an external connector to receive an electric power. An output side end part of the yoke housing has a flange portion, through which the gear housing is fixed to the yoke housing. The holder member includes a contact portion that contacts the flange portion of the yoke housing in an axial direction of a rotatable shaft.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 10, 2011
    Applicant: ASMO CO., LTD.
    Inventor: Hiroshi Kokubu
  • Patent number: 7902708
    Abstract: An electro-magnetic motor-generator system, including a wheel assembly having a wheel mounted onto a shaft. The shaft has a sleeve mounted thereon. A frame assembly is mounted onto the sleeve. The frame assembly comprises at least one hub having a sprocket. A gear assembly comprises a second sprocket mounted onto the shaft that engages the sprocket. A rotating ring assembly has first and second walls. The first wall comprises first gear teeth and the second wall comprises second gear teeth. The ring assembly further has consecutive magnetized/non-magnetized sections. The electro-magnetic means consist of at least one coil having first and second openings. Electro-magnetic means generate an electromotive force between said first and second openings, and said consecutive magnetized/non-magnetized sections. Switching said magnetic polarity forces said rotating ring assembly to rotate upon said sprocket thus rotating said wheel mounted onto said shaft.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: March 8, 2011
    Inventor: Shimon Elmaleh
  • Patent number: 7902704
    Abstract: A linear actuator includes a base having a positioning post and a motor fixed on one side of the base. A spindle positioning means includes a spindle, a seat and a fixing element. The spindle protrudes from the motor and penetrates the base. One side of the spindle away from the motor is formed with a free end. The seat includes a cylinder and an extension plate protruding outwards from the periphery of the cylinder. The extension plate is provided with a trough. The cylinder is connected to the free end of the spindle. The trough of the extension plate is located to correspond to the positioning post. The fixing element passes through the trough to fix the seat on the positioning post. Via this arrangement, the breakage of the spindle caused by a lateral force can be prevented efficiently.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: March 8, 2011
    Assignee: T-Motion Technology Co., Ltd.
    Inventor: Kuan-Shu Tseng
  • Publication number: 20110050014
    Abstract: Due to a centrifugal force in a vehicle width direction due to turning of an automobile, oil in an electric motor housing chamber housing an electric motor and oil in a transmission housing chamber housing a reduction gear and a differential gear flows to-and-fro via oil communication passages that penetrate a partitioning wall. An opening on the transmission housing chamber side of the oil communication passages is spaced from the partitioning wall. Hence, when oil moves from the transmission housing chamber side to the electric motor housing chamber side, it is possible to prevent the oil quantity on the electric motor housing chamber side from increasing excessively and suppress an increase in resistance to oil stirring by a rotor of the electric motor while retaining a constant oil amount on the transmission housing chamber side to ensure lubricating performance for the reduction gear and the differential gear.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Seiichi MOGI
  • Publication number: 20110050013
    Abstract: Due to a centrifugal force in a vehicle width direction due to turning of an automobile, oil in an electric motor housing chamber housing an electric motor and oil in a transmission housing chamber housing a reduction gear and a differential gear flows to-and-fro via oil communication passages that penetrate a partitioning wall. An opening on the transmission housing chamber side of the oil communication passages is spaced from the partitioning wall. Hence, when oil moves from the transmission housing chamber side to the electric motor housing chamber side, it is possible to prevent the oil quantity on the electric motor housing chamber side from increasing excessively and suppress an increase in resistance to oil stirring by a rotor of the electric motor while retaining a constant oil amount on the transmission housing chamber side to ensure lubricating performance for the reduction gear and the differential gear.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Seiichi Mogi, Tatsuya Fukushima
  • Patent number: 7898142
    Abstract: General versatility of a brush holder is enhanced regarding a difference of specifications of connector parts, and costs of an electric motor with brush are reduced. A pair of brush-side connection terminals electrically connected to brushes is provided to a brush holder mounted inside a motor yoke. A connector part and a pinching part are provided in a connector unit formed separately from the brush holder, power connection terminals are provided in the connector part, and connector-side connection terminals electrically connected to the power connection terminals are provided inside the pinching part. The pinching part is disposed so as to overlap with the brush holder axially, thereby electrically connecting the brush-side connection terminals and the connector-side connection terminals, and the brushes are electrically connected respectively to the power connection terminals, and the pinching part is sandwiched and fixed between the motor yoke and a gear case.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 1, 2011
    Assignee: MITSUBA Corporation
    Inventors: Hiroyuki Uchimura, Hiroyuki Shibusawa
  • Publication number: 20110043062
    Abstract: Actuator comprising a reversible electric motor (7) which through a transmission (8) rotates a spindle (9), and where there on the spindle is a spindle nut (10), whereto an activation rod (11) is connected, and where there on a front end of the activation rod is secured a front mounting (16). Between the activation rod and the front mounting there is an emergency lowering mechanism (14).
    Type: Application
    Filed: February 9, 2009
    Publication date: February 24, 2011
    Inventor: Anders B. Lorenzen
  • Publication number: 20110037355
    Abstract: A drive unit (10) for an adjuster in a vehicle, in particular for a vehicle seat, has at least one motor (12) which has a stator (16) with at least one coil (24). At least one rotor (18) which interacts with the stator (16) in a magnetic manner, rotates about an axis (A) and is fitted with permanent magnets. A commutation module (20) is provided for supplying current to the coil (24) as a function of the rotation of the rotor (18). An electrical connection (22) is provided for an at least two-pole supply voltage (+Ub, ?Ub). The commutation module (20) is selected from a set of brush-commutating and brushless commutation modules (20), with the structure of the motor (12) otherwise remaining the same.
    Type: Application
    Filed: November 3, 2009
    Publication date: February 17, 2011
    Applicant: Keiper GMBH & Co., KG
    Inventors: Rolf Schüler, Christoph Schuhn
  • Publication number: 20110031829
    Abstract: In a drive unit having at least one transmission stage (Ü) and one drive element (4) for driving with high power density, having a drive element (4), and element (8), and an output element (14), wherein a translation and transmission of a drive torque occurs between the drive element (4) and the output element (14) via a plurality of radially movable toothed segments (10), the drive element (4) is to be embodied as an electrical drive for the transmission stage (Ü).
    Type: Application
    Filed: November 27, 2008
    Publication date: February 10, 2011
    Inventor: Thomas Bayer
  • Publication number: 20110031424
    Abstract: An electromechanical actuator is provided for converting rotary action into linear action, and includes an electric motor, a cable yoke, an output shaft, and a pair of cables. The electric motor is adapted to be selectively energized and is configured, upon being energized to generate a drive torque. The cable yoke is coupled to receive the drive torque and is configured, upon receipt thereof, to rotate about a rotational axis. The output shaft is coupled to receive a drive force and is configured, upon receipt thereof, to translate along a linear axis that is disposed at least substantially perpendicular to the rotational axis. Each cable is wound, in pretension, on a portion of the cable yoke and around a portion of the output shaft. The pair of cables is configured, upon rotation of the cable yoke, to supply the drive force to the output shaft.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 10, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Casey Hanlon, Steve Abel, David M. Eschborn, Doug Kortum, Don Christensen
  • Publication number: 20110031828
    Abstract: The E-Z Tent Trailer Lift Model #2B (hereafter referred to as the E-Z Lift in this document) consists of a roller chain and sprocket-reduction drive, operated by a reversible 12V DC gear head motor, controlled by a two-way switch with an interior cut-off switch to prevent tampering. Powered by on-board or towing vehicle 12V batteries. The 12V gear head motor is reversible to provide for clockwise action to raise the tent portion of the pop-up trailer and counter clockwise to lower it.
    Type: Application
    Filed: March 1, 2010
    Publication date: February 10, 2011
    Inventor: Delmer Wesley Forester
  • Publication number: 20110027051
    Abstract: A magnetic screw driving device 9 is for rotating a helical magnet shaft 11, that is axially supported on a housing 17, through a drive shaft 13 connected to a motor. The drive shaft 13 and the helical magnet shaft 11 are respectively provided with cylindrical collars 19 through which the drive shaft 13 and the helical magnet shaft 11 are inserted and which are mounted airtightly and oil seals 20 mounted to the housing 17 to come in sliding contact with surfaces of the collars 19 to thereby seal a lubricant Gr in the housing 17. As a result, it is possible to provide a magnetic screw driving device which contributes to reduction in maintenance cost and running cost.
    Type: Application
    Filed: July 16, 2010
    Publication date: February 3, 2011
    Applicant: CANON ANELVA CORPORATION
    Inventors: Takuma Miyauchi, Kouichi Yoshizuka
  • Publication number: 20110025150
    Abstract: A dual electromotive furniture drive has a housing with a drive motor, which is drive-coupled to a rotation speed reduction gear mechanism, which moves rotation-locked spindles longitudinally, wherein the rotation speed reduction gear mechanism and the spindles are arranged in the housing. An end switch limits the end positions of the spindles. A pressure piece is arranged on the spindles on the side facing away from the rotation speed reduction gear mechanism. The pressure piece is operatively connected to an adjusting element which is fixedly mounted on a moving furniture component. The spindles are inclined relative to the horizontal at an obtuse angle. The dual electromotive furniture drive is configured to adjust the back rest and/or the foot rest of a slatted frame. This design has a low parts count, and optimally transfers the internal forces, in particular through the housing walls.
    Type: Application
    Filed: December 4, 2008
    Publication date: February 3, 2011
    Inventor: Andreas Heinrichs
  • Publication number: 20110012361
    Abstract: An integrated turbine generator/motor (10) which consists of a housing (20) having a cylindrical body (22) and an eyebolt retaining plate (24) attached to the top surface of the cylindrical body (22). A ring gear (26) is rotatably disposed adjacent to the eyebolt retaining plate (24) and a plurality of turbine blades (28) are joined to turbine blade brackets (30) that are attached onto a peripheral edge of the ring gear (26). A plurality of pinion gears (32) rotatably interface with the ring gear (26) and a plurality of planetary gears (50) are connected beneath and are rotated by the pinion gears (32). When the generator/motor (10) functions as a generator (58) it includes a driven shaft (60) with a sun gear (62) attached, with the generator disposed within the housing. The sun gear (62) is rotated by the planetary gears (50) which create electrical energy from the generator by rotation of the ring gear (62).
    Type: Application
    Filed: July 16, 2009
    Publication date: January 20, 2011
    Inventor: S. Peter Lee
  • Publication number: 20110012453
    Abstract: A directed flux motor described utilizes the directed magnetic flux of at least one magnet through ferrous material to drive different planetary gear sets to achieve capabilities in six actuated shafts that are grouped three to a side of the motor. The flux motor also utilizes an interwoven magnet configuration which reduces the overall size of the motor. The motor allows for simple changes to modify the torque to speed ratio of the gearing contained within the motor as well as simple configurations for any number of output shafts up to six. The changes allow for improved manufacturability and reliability within the design.
    Type: Application
    Filed: September 23, 2010
    Publication date: January 20, 2011
    Inventors: ANDREW WILSON, Andrew Punnoose, Katherine Strausser, Neil Parikh
  • Publication number: 20110012454
    Abstract: A directed flux motor described utilizes the directed magnetic flux of at least one magnet through ferrous material to drive different planetary gear sets to achieve capabilities in six actuated shafts that are grouped three to a side of the motor. The flux motor also utilizes an interwoven magnet configuration which reduces the overall size of the motor. The motor allows for simple changes to modify the torque to speed ratio of the gearing contained within the motor as well as simple configurations for any number of output shafts up to six. The changes allow for improved manufacturability and reliability within the design.
    Type: Application
    Filed: September 23, 2010
    Publication date: January 20, 2011
    Inventors: ANDREW WILSON, Andrew Punnoose, Katherine Strausser, Neil Parikh
  • Publication number: 20110012452
    Abstract: Drive comprising a housing with a drive unit. The drive unit comprises an electric motor and a drive train comprising a reduction stage with an output shaft. The drive comprises an evoloid gear stage and a cover module which comprises a drive stage to be coupled with the output shaft of the drive train. The evoloid gear stage is preferably designed as a pinion with a toothing which comprises less than six, preferably two or three, teeth.
    Type: Application
    Filed: January 15, 2009
    Publication date: January 20, 2011
    Applicant: MCi (Mirror Controls International) Netherlands B.V.
    Inventor: Stefan Frits Brouwer
  • Patent number: 7871084
    Abstract: A telescopic actuator includes a motor, an input flange rotated by the motor, a male screw member coupled to the input flange, a female screw member threadedly engaged with the male screw member, an output rod coupled to the female screw member, the output rod being moved in an axial direction thereof to output a thrust force when the input flange is rotated, and a housing inside which the male screw member and the female screw member are accommodated. The input flange is supported by the housing such that a relative movement of the input flange with respect to the housing is allowed in a radial direction but restricted in the axial direction.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: January 18, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takehiko Hakui, Kotaro Yamaguchi, Masanori Watanabe, Atsushi Yuta, Hajime Kajiwara
  • Publication number: 20110006627
    Abstract: A motor 10 with reduction gear mechanism has a first worm 15 and a second worm 15? having mutually opposite screw torsion directions; a first counter gear 30 including a first large-diameter gear 31 meshing with the first worm 15 and a first small-diameter gear 35 rotating as one piece with the first large-diameter gear 31; a second counter gear 30? including a second large-diameter gear 31? meshing with the second worm 15? and a second small-diameter gear 35? rotating as one piece with the second large-diameter gear 31?; and an output gear 40 meshing with both the small-diameter gears 35, 35?; wherein a first device 50 for applying a force to press the first counter gear 30 towards a gear case 21 is arranged between the tip of the first small-diameter gear 35 and a gear case cover 29, and a second device 50? for applying a force to press the second counter gear 30? towards the gear case 21 is arranged between the tip of the second small-diameter gear 35? and the gear case cover 29.
    Type: Application
    Filed: July 22, 2008
    Publication date: January 13, 2011
    Inventors: Masayuki Shimoyama, Hirokazu Shoda, Yasuo Ohashi
  • Patent number: 7863790
    Abstract: A motor may include an urging member which is mounted on a fixed body for urging the bearing, and a pair of engaging grooves formed on the fixed body. The urging member may includes a pair of hook parts which are bent from respective tip ends of a pair of side plate parts. When the urging member is mounted on the fixed body, a pair of the hook parts are inserted from open ends and engaged with a pair of the engaging grooves and, when an outward force is applied to the urging member, the hook parts abut with an opposite inner wall of the engaging grooves located on a tip end side in the axial line direction of the motor to prevent the hook parts from being disengaged from the engaging grooves.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: January 4, 2011
    Assignee: Nidec Sankyo Corporation
    Inventors: Akira Taruta, Toshio Ueno
  • Publication number: 20100327684
    Abstract: A gear set for a generator includes a first gear having a first set of involute teeth and a second gear having a second set of involute teeth circumferentially located about a center axis of rotation. Each set of involute teeth includes respective roll angles, ?A-D. For a diametrically smaller one of the first gear and the second gear the roll angle ?A is 1.51°-3.51°, the roll angle ?B is 7.64°-9.64°, the roll angle ?C is 26.03°-28.03°, and the roll angle ?D is 32.16°-34.16°, and for a diametrically larger one of the first gear and the second gear the roll angle ?A is 15.02°-17.02°, the roll angle ?B is 16.7°-18.7°, the roll angle ?C is 21.73°-23.73°, and the roll angle ?D is 23.41°-25.41°.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Inventors: Andrew P. Grosskopf, Eric A. Brust
  • Publication number: 20100327683
    Abstract: An electric motor contains a mechanical mechanism that causes a rotor to move in an epitrochoidal path. Disposed around the epitrochoidal path are stators that may impel or force the rotor to rotate. The mechanical mechanism that creates the epitrochoidal path may consist of an output shaft with an eccentric lobe, where the rotor revolves around the eccentric lobe. A fixed mounted sun gear may engage a ring gear mounted to the rotor to cause the epitrochoidal motion. Some embodiments may have two or more rotors, and may include controllers with feedback sensors to operate the electric motor at a specific speed or to control the speed as defined in a speed profile.
    Type: Application
    Filed: June 27, 2009
    Publication date: December 30, 2010
    Inventor: Felix Wilson, II
  • Publication number: 20100327791
    Abstract: A rotary electric machine having plural rotary elements in a non-coaxial arrangement is disclosed. The rotary electric machine includes a housing assembly, at least one stator frame mounted in the housing assembly, at least one stator winding wound on the at least one stator frame, and at least two rotors mounted in the housing assembly having axes of rotation that are non-coaxial, wherein each of the at least two rotors is mechanically decoupled from the other rotors such that each of the at least two rotors rotates independent from one another. The rotary electric machine also includes a control unit, with the control unit including at least one electronic control electrically connected to the at least one stator winding. The control unit is configured to control an exchange of power to or from each of the at least one stator windings.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 30, 2010
    Inventor: John R. Casey
  • Publication number: 20100327717
    Abstract: The invention relates to a furniture drive for driving a movable piece of furniture, comprising an electric motor, an actuator that can be moved back and forth between two end positions to apply a force on the piece of furniture to be driven, and a gearbox connected between the electric motor and actuator, wherein the gearbox has at least one gear stage configured as an eccentric gearbox and comprising two gear wheels that mesh with each other, wherein one of the two gear wheels is firmly connected or coupled to the actuator and the other gear wheel is coupled to the electric motor such that the eccentric gearbox has two limit positions, which correspond to the end positions of the actuator, and upon a rotation of the gear wheels, starting from the limit positions, the gear ratio decreases over a deformed rotational angle range.
    Type: Application
    Filed: September 9, 2010
    Publication date: December 30, 2010
    Inventors: Edgar Huber, Gerald Friesenecker
  • Publication number: 20100320849
    Abstract: An electronic drive unit includes a case housing that extends along a primary axis. A sleeve shaft and an electric motor are disposed in the hollow interior of the case housing. The electric motor is operatively connected to the sleeve shaft to rotate the sleeve shaft about the primary axis. At least one gear set is disposed in operative engagement with the sleeve shaft and is configured for rotation about the primary axis. A pair of output shafts each extends along the primary axis within the case housing. The output shafts are rotatably connected to the gear set and are configured for rotation about the primary axis. The gear set is configured to translate rotation of the sleeve shaft into rotation of the output shafts about the primary axis at a rotational velocity that is less than the rotational velocity of the sleeve shaft.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 23, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Daryl A. Wilton, Edward W. Mellet, James M. Hart, Clinton E. Carey, Joseph Young-Long Chen
  • Publication number: 20100320857
    Abstract: Each of a plurality of brushes is tilted relative to an imaginary plane that is perpendicular to a rotational axis of an armature and is placed on one axial side of a brush holder, at which an interior of a yoke housing is located. A radial inner end part of each brush has a slide contact surface, which is generally parallel to the rotational axis of the armature and slidably contacts an outer peripheral surface of a commutator. At least a portion of the slide contact surface of each brush is axially disposed outside of an opening of the yoke housing.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 23, 2010
    Applicant: ASMO CO., LTD.
    Inventor: Nobuo Mizutani
  • Publication number: 20100314881
    Abstract: An auxiliary drive/brake system for a wind turbine. The auxiliary drive/brake system includes an impulse, high torque electric motor connected to a motor drive control system which controls the impulse high torque electric motor. The auxiliary drive/brake system further includes a gearbox transmission, a drive shaft, and a transfer gearbox that connects to either the wind turbine low-speed shaft or to the wind turbine gearbox. The drive system provides impulse operation of the wind turbine. Control of the auxiliary drive/brake system is performed by an electronic speed control in combination with either a motor drive control system or an electronic variable speed drive.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 16, 2010
    Inventor: Richard Stone
  • Publication number: 20100308554
    Abstract: An actuator, which can be actuated along a longitudinal axis, in particular for a spring carrier, includes a stationary part, a first rotor, which can be driven so as to perform a rotary motion, a rotatable second rotor, which is supported against the stationary part in the axial direction in an axial rest position, a coupling device, by which the second rotor is coupled to the first rotor, and an output element, which is connected to the second rotor and can be moved axially by means of a rotary motion of the second rotor. The coupling device interacts with the first rotor and the second rotor in such a way that, starting from the rest position, an axial movement of the second rotor can be produced by means of a first rotary motion of the first rotor in order to release the second rotor from the stationary part and thereby bring it into a working position.
    Type: Application
    Filed: June 1, 2010
    Publication date: December 9, 2010
    Applicant: MAGNA STEYR FAHRZEUGTECHNIK AG & CO. KG
    Inventors: Matthias Kohlhauser, Hansjoerg Poehler
  • Patent number: 7847447
    Abstract: An electric motor and a speed reduction device for reducing a rotational speed of the motor are contained in a housing composed of a front housing and a rear housing. The motor is positioned in the housing at its rear side, and the speed reduction device at its front side. The speed reduction device is composed of a sun gear rotatably supported on an eccentric portion formed on a rotor shaft, a ring gear having inner teeth engaging with outer teeth of the sun gear, and an output shaft loosely coupled to the sun gear for outputting the rotational torque at a reduced speed. The ring gear made of a magnetic material is positioned in contact with an axial end of a stator core of the motor to provide an additional magnetic flux path and thereby to increase an output torque of the motor.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: December 7, 2010
    Assignee: Denso Corporation
    Inventors: Mikine Kume, Seiji Nakayama
  • Patent number: 7847449
    Abstract: An electromotor for regulating a drive in a motor vehicle. The electromotor includes an armature spindle mounted in a pole housing that includes a shell. At least on one front side of the shell a bearing cover is coupled thereon to accommodate an armature spindle bearing. The electromotor also includes a radial molding formed on the pole housing that receives a guide track of a gear assembly housing via radial insertion to fasten the electromotor to the gear assembly housing without the use of additional fasteners.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: December 7, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Hans-Juergen Oberle, Franz Schwendemann, Dieter Scheer, Uwe Merkelbach
  • Publication number: 20100301691
    Abstract: A brushless rotary actuator comprises a housing including a motor housing defining a cavity for a motor assembly and a cover defining a cavity for a gear assembly. The motor assembly includes a rotor and a stator with a plurality of bobbins. A clip in the form of a ring plate is seated against the bobbins for retaining the bobbins on the stator. Fingers formed on the ring plate are fitted into respective slots defined by respective bobbin terminals. A circuit board is seated in the housing against an interior shoulder of the motor housing. A plate is seated in the housing against a peripheral rim of the motor housing in a spaced relationship above the circuit board.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 2, 2010
    Inventors: Douglas Edward Cors, Patrick B. Blakesley, Ryan P. Garver, Derek L. Crites
  • Patent number: 7843095
    Abstract: A spindle unit (A) for effecting a manufacturing or repair procedure includes a spindle assembly (2) having a spindle (12) that holds a tool (B), an electric motor (4), and a friction drive transmission (6) located between the spindle assembly and the motor. The transmission includes a sun roller (86) driven by the motor, an outer ring (110) coupled to the spindle, and a pair of support rollers (90) located between the sun roller and outer ring to position the outer ring eccentric to the sun roller and create a wedge gap (126) between the sun roller and the outer ring. The transmission also has a loading roller (96) located at the wedge gap such that it can displace laterally and lodge tightly in the wedge gap. The spindle rotates in bearings (14, 16), one of which is a single row tapered roller bearing that transfers thrust loads developed during the procedure.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: November 30, 2010
    Assignee: The Timken Company
    Inventors: Xiaolan Ai, Dan Czekansky, David K. Lawrentz, Josh Cowan
  • Patent number: 7839037
    Abstract: An electric motor for actuators in a motor vehicle has an armature shaft, which is supported in a pole housing that includes a jacket and a bearing cover on at least on one end face for accommodating a bearing for the armature shaft, and at least one radial recess is formed in the pole housing, which, once the pole housing has been fully assembled, is suitable for engagement by at least one radial fastening segment of a transmission interface in the pole housing, in order to attach the electric motor to the transmission interface.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: November 23, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Hans-Juergen Oberle, Dieter Scheer, Franz Schwendemann, Christof Bernauer
  • Patent number: 7839035
    Abstract: A power-driven rolling and receiving apparatus includes a housing, a DC brushless motor, a deceleration unit, a motor linker, a control and driving unit, and a first brake unit. The DC brushless motor, the deceleration unit, the motor linker, the control and driving unit and the first brake unit are received in the housing. Two ends of the motor linker are respectively connected with the deceleration unit and the DC brushless motor. The controlling and driving unit is connected with the DC brushless motor. The first brake is located in the controlling and driving unit. Thereby, the dimension of the power-driven rolling and receiving apparatus is smaller, its weight is lighter, its temperature is low and its operation noise is also low.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: November 23, 2010
    Inventor: Su-Yuan Hwaung
  • Publication number: 20100289358
    Abstract: A stator 60 is rotated in a direction opposite to that of a rotor 20 to improve output of a generator 9. A stator 60 is rotationally fixed to a main shaft 10. A rotor is fixed to the main shaft rotated by outer force. A main gear 25 is fixed to the main shaft. A ring gear 32 is fixedly positioned with respect to the stator. Pinion gears 43 are disposed between the mains shaft and the ring gear. Rotation of the main shaft in a forward direction rotates the stator in a reverse direction. A pair of slip collars 4a, 4b are concentrically mounted to the rear cover 71 that concurrently rotates with the stator. Output circuits 6a, 6b, 6c of the stator coils 5a, 5b, 5c are connected to the slip collars. Brushes 7a, 7b for slip collars are connected to a rear-side base member 55 fixedly secured to a base plate 50. Electricity is output through the brushes for slip collars.
    Type: Application
    Filed: February 9, 2009
    Publication date: November 18, 2010
    Inventor: Koji Sorida
  • Publication number: 20100289359
    Abstract: An electropermanent magnet-based motor includes a stator having at least one electropermanent magnet, at least one coil around the electropermanent magnet configured to pass current pulses that affect the magnetization of the magnet, and a rotor that is movable with respect to the stator in response to changes in the magnetization of the electropermanent magnet. A wobble motor has a stator with a centrally-located core from which arms radiate outward, an electropermanent magnet and coil on each arm, and a rotor exterior to the stator such that the rotor can rotate around the stator arms. A rotary motor has a centrally-located rotor that rotates about its axis and a stator exterior to the rotor such that the rotor may rotate within the stator arms, the stator including an anteriorly-located stator core from which stator arms radiate inward toward the rotor, and an electropermanent magnet and coil on each stator arm.
    Type: Application
    Filed: January 27, 2010
    Publication date: November 18, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Ara Knaian, Neil Gershenfeld, Maxim Lobovsky
  • Patent number: 7834500
    Abstract: A generator system is disclosed. The generator system includes an input gear, a gear train coupled to the input gear, and a clutch associated with the input gear, wherein the clutch is exposed to the gear train.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: November 16, 2010
    Assignee: Caterpillar Inc
    Inventor: Satish Dattatraya Savant