Bevel Gear Differential Patents (Class 475/230)
  • Patent number: 10697529
    Abstract: A drive torque received from a power source is split and output to first and second output shafts through a torque vectoring apparatus including a torque vectoring device that controls a torque ratio of split torques, where the torque vectoring device includes a control motor, a first compound planetary gear set including first and second planetary gear sets having a first rotation element fixed to a housing, a shared second rotation element connected to the first output shaft, and a third rotation element, and a second compound planetary gear set including third and fourth planetary gear sets having a shared fourth rotation element connected to the second output shaft, a fifth rotation element connected to a third rotation element, and a sixth rotation element connected to the control motor.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: June 30, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chulmin Ahn, SungGon Byun, Seok Joon Kim, Su Hyeon Maeng, Hongkyu Lee, Baekyu Kim, Junyoung Ha
  • Patent number: 10544856
    Abstract: A differential apparatus includes a differential gear mechanism in which side gears mesh with pinion gears, a pinion shaft that rotatably supports the pinion gear, a slide member that supports the ends of the pinion shaft, and pinion gear washers each disposed between the slide member and a corresponding one of the pinion gears. Movement of each pinion gear washer toward the slide member in the axial direction of the pinion shaft is restricted. When a force of the pinion gear pressing the pinion gear washer toward the slide member is less than a predetermined value, a clearance is formed between the slide member and the pinion gear washer. When the force of the pinion gear pressing the pinion gear washer toward the slide member is greater than the predetermined value, the outer surface of the pinion gear washer abuts the inner surface of the slide member.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: January 28, 2020
    Assignee: JTEKT CORPORATION
    Inventors: Tadashi Yoshisaka, He Jin, Yasunori Kamitani
  • Patent number: 10527147
    Abstract: A differential gear mechanism constructed in accordance to one example of the present disclosure can include a differential case, a clutch pack and a plurality of lock pins. The differential case can include a first differential case portion that defines a first output shaft opening and includes a plurality of clutch ear guides and a plurality of lock pin engaging surfaces. The clutch pack can include a plurality of annular plates that are interleaved between a plurality of annular friction disks. At least one of the annular plates and annular friction disks can include a plurality of radially extending plate ears that are received by the corresponding plurality of clutch ear guides. The plurality of lock pins can be received by the plurality of first lock pin engaging surfaces of the first differential case at locations in-line with the clutch ear guides.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: January 7, 2020
    Assignee: Eaton Corporation
    Inventors: Matthew G. Fox, Jeffrey A. Oesch
  • Patent number: 10495205
    Abstract: A bearing arrangement for rotatably supporting a pinion shaft in a housing is described. A pinion of the pinion shaft interacting with a ring gear, the pinion shaft being mounted in the housing by way of two axial bearings and a radial bearing which is arranged between the axial bearings.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: December 3, 2019
    Assignee: MAGNA POWERTRAIN GMBH & CO KG
    Inventors: Franz Gratzer, Hannes Schweiger, Wolfgang Schweiger, Simon Wurzinger
  • Patent number: 10415682
    Abstract: A case for a differential gear set includes: a rotatable carrier having a cylindrical fitting face and a radially projecting flange having an axially directed butting face; a cover having a brim section so projecting axially as to fit on an outer periphery of the flange and so dimensioned as to align an end face of the brim section with the butting face; a ring gear fitting on the fitting face and having a back face in contact with the butting face; and a weld metal uniting the carrier, the cover and the ring gear together, wherein the butting face of the carrier, the end face of the cover and the back face of the ring gear are so dimensioned as to keep a circular groove exposed outward and reaching an interface between the back face and the butting face and the weld metal fills the groove.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: September 17, 2019
    Assignee: GKN Driveline Japan Ltd
    Inventors: Isao Hirota, Noboru Higano, Masahiko Asahi
  • Patent number: 10234010
    Abstract: An axle carrier includes a housing having an outer surface, an inner surface defining an interior portion, a first axle support member, and a second axle support member. The body is formed from a first material. A gear carrier is arranged within the interior portion. The gear carrier is formed from a second material. The first material comprises a metal matrix composite having a coefficient of thermal expansion (CTE) that substantially matches a CTE of the second material.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: March 19, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: William J. Wilson
  • Patent number: 10233976
    Abstract: A vehicle drivetrain assembly having a clutch collar actuator mechanism. The clutch collar actuator mechanism may include an air bellow and a fork that may operatively connect an actuator rod to a clutch collar. The clutch collar actuator mechanism may actuate the clutch collar from a first position to a second position when the air bellow is inflated.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: March 19, 2019
    Assignee: Meritor Commercial Vehicle Systems India Private Limited
    Inventors: Dhananjaya Siddaramappa, Supreeth Chandrashekar, Kishan Kumar Udupi, Prashanth Kuruba
  • Patent number: 10227001
    Abstract: A differential unit includes: a differential case; a differential mechanism; a connecting-disconnecting member that connects the differential case to the differential mechanism; an actuator that generates a moving force for moving the connecting-disconnecting member; a moving-force transmitting member that transmits the moving force generated by the actuator to the connecting-disconnecting member; and a wave washer that urges the connecting-disconnecting member in a direction opposite to a direction in which the connecting-disconnecting member is moved by the actuator. The actuator includes a plunger that moves while compressing the wave washer in the axial direction from a first prescribed length using a magnetic force of an electromagnet. A movement of the plunger in a direction away from the connecting-disconnecting member is restricted by a contacting portion of a restricting member.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: March 12, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Tadashi Yoshisaka, He Jin, Yasunori Kamitani
  • Patent number: 10156289
    Abstract: An axle assembly having a first clutch collar and a second clutch collar. The first clutch collar may be selectively engageable with a drive gear that may be rotatably disposed on an input shaft. The second clutch collar may be selectively engageable with a side gear of an interaxle differential unit.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 18, 2018
    Assignee: Meritor do Brasil Sistemas Automotivos Ltda.
    Inventors: Armando Marcelo Rivero De Stefani, Adriano Esperidião, Jose Renan da Silva, Rodrigo Lacerda Soffner
  • Patent number: 10125855
    Abstract: In a transmission device, a flange portion includes: first outer peripheral portion fitted and welded to inner peripheral portion of ring gear; second outer peripheral portion small in diameter and adjacent to the first outer peripheral portion via first connecting surface; and third outer peripheral portion smaller in diameter and adjacent to the second outer peripheral portion on the opposite side from the first outer peripheral portion via second connecting surface. The ring gear includes space forming portion defining, between it and the flange portion, space faced by inner end of welded portion and extending radially inward and outward of the welded portion. Side surface of the stopper portion abuts against the second connecting surface, the stopper portion being formed in the ring gear and having inner peripheral surface press-fitted to the third outer peripheral portion.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 13, 2018
    Assignee: Musashi Seimitsu Industry Co., Ltd.
    Inventor: Yoichi Yanase
  • Patent number: 10124671
    Abstract: A drive switching apparatus includes an output member connected to a drive switching member and displacing the drive switching member to three shift positions by being rotated, a deceleration mechanism decelerating rotation of an input portion connected to an electric motor and outputting the rotation to an output portion, a rotation absorption mechanism including an elastic member interposed between an input element connected to the output portion and an output element connected to the output member, the rotation absorption mechanism absorbing rotation of the input element in a case where rotation of the output element is restricted during the rotation of the input element, and a switch operation portion provided at the output element, the switch operation portion turning a switch on and off according to a rotational position of the output member in order to detect the shift positions of the drive switching member.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: November 13, 2018
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Yasuhiro Nakane
  • Patent number: 10082199
    Abstract: A differential is disclosed for use with a drivetrain of a mobile machine. The differential may have an input gear, a first side gear, a second side gear, and a side pinion disposed axially between and intermeshed with the first and second side gears. The differential may also have a carrier nested inside of the input gear and connected to the input gear and the side pinion. The carrier may at least partially surround the first side gear and the second side gear.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: September 25, 2018
    Assignee: Caterpillar Inc.
    Inventors: Omar Jose Adragna, David Owen Thompson
  • Patent number: 10012302
    Abstract: A vehicle differential includes a pair of side gears, a pinion gear, a differential case, and an annular ring gear. The differential case includes an opening penetrating a peripheral wall of the differential case. The annular ring gear is attached to an outer side of the peripheral wall of the differential case such that a central axis of the annular ring gear and a rotational axis of the differential case coincide with each other. The annular ring gear includes a protrusion on an inner peripheral edge of the annular ring gear. The protrusion covers a part of the opening when viewed in a penetration direction of the opening. The protrusion protrudes toward the inner side of the opening in the radial direction of the rotational axis as compared with an other part of the inner peripheral edge of the annular ring gear that has no protrusion.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: July 3, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Kiten, Norihiro Mizoguchi
  • Patent number: 9933061
    Abstract: A weld structure includes a fitting portion at which a first member and a second member are engaged, a weld portion at which the first member and the second member are welded together, and a space between the fitting portion and the weld portion. One of the first member and the second member has a communication passage whose one end is open to the space and whose other end is open to an outside at a position other than the space. The communication passage is blocked by an insertion member that has a predetermined function in addition to blocking the communication passage.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 3, 2018
    Assignee: SUBARU CORPORATION
    Inventors: Yusuke Shirakawa, Takuya Maekawa, Hiroto Seto, Takamasa Tsuchiya
  • Patent number: 9914357
    Abstract: A powertrain includes a front differential configured to distribute torque to two front half-shafts. The differential includes a carrier body and a drive gear formed into an exterior surface of the carrier body. The powertrain further includes a power take-off unit configured to transfer torque from the carrier body to a rear axle. The unit has a PTU gear meshed with the drive gear.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: March 13, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: David Allen Janson
  • Patent number: 9903458
    Abstract: A differential gear for a motor vehicle includes a housing with a first housing part and a second housing part, and at least one bolt on which two differential gear wheels are arranged. The first housing part is configured integrally with an input element and the second housing part has at least two mutually opposing receiver openings. Bolt ends of the bolt are received in the receiver openings so that end faces of the bolt in the region of the two bolt ends, together with the outside of the second housing part, form a housing outer face. The first housing part, the second housing part, and the bolt are connected together by a peripheral radial weld seam.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: February 27, 2018
    Assignee: MAGNA POWERTRAIN GMBH & CO KG
    Inventor: Josef Archan
  • Patent number: 9878615
    Abstract: A differential apparatus includes a differential mechanism, a differential case that accommodates the differential mechanism, and a clutch mechanism that transmits a driving force between the differential case and the differential mechanism. The clutch mechanism includes a slide member movable inside the differential case in an axial direction and an actuator. The slide member has a first meshable portion at one end in the axial direction, is allowed move relative to the differential mechanism in the axial direction, and is prevented from rotating relative to the differential mechanism. The differential case includes a first case member and a second case member that are united to form the differential case. The first case member integrally includes a second meshable portion and a flange portion that the ring gear is fastened to.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: January 30, 2018
    Assignee: JTEKT CORPORATION
    Inventors: Yasunori Kamitani, Minoru Onitake, Tadashi Yoshisaka, He Jin
  • Patent number: 9739360
    Abstract: An integrated pinion, bearing and coupling (PBC) assembly for use with a hypoid gearset in power transfer assemblies of motor vehicles. The PBC assembly includes a pinion unit having a pinion gear segment and a pinion stub shaft segment, and a coupler unit having a coupling flange segment and a coupler shaft segment. The pinion stub shaft segment surrounds and is in press fit engagement with the coupler shaft segment. A portion of the coupler shaft segment is deformed to be retained within one of a receiver groove and raised projections formed in the pinion stub shaft segment so as to fixedly secure the coupler unit to the pinion unit.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: August 22, 2017
    Assignee: Magna Powertrain of America, Inc.
    Inventors: Michael P. Bujold, Brad Ketchel, Wade Smith
  • Patent number: 9709149
    Abstract: A powered axle gear (I) for a motor vehicle. The axle gear can cope with large driving torques and at the same time be accommodated in an axle beam between the vehicle's tractive wheels. The axle gear has a gear housing (10) which accommodates a pinion (40) and a crownwheel (50) for transmission of rotary motion to the vehicle's powered axles (Y1, Y2). To this end, there are two bearings (62, 64), one on each side of the crownwheel (50) and the pinion's centerline (X), with a differential situated between the bearings (62, 64). The bearing (64) situated beyond both the crownwheel (50) and the pinion's centerline (X) has running round it an undivided bearing seat (30) provided with a portion running in the circumferential direction which protrudes over the pinion (40) towards the latter's centerline (X) in a configuration which at least partly overlaps the pinion (40). The invention relates also to a motor vehicle with this axle gear.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: July 18, 2017
    Assignee: SCANIA CV AB
    Inventor: Stefan Karlsson
  • Patent number: 9702448
    Abstract: A differential for use in a vehicle drive train having a pair of rotary members including a gear case that is operatively supported in driven relationship with respect to the drive train and a pair of side gears mounted for rotation with a respective one of the rotary members in the gear case. The differential also includes a spider mounted for rotation with the gear case and at least one pair of pinion gears mounted for rotation with the spider and in meshing relationship with the side gears. The side gears have concave teeth flanks and the pinion gears have convex teeth flanks to increase power density through the differential.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: July 11, 2017
    Assignee: Eaton Corporation
    Inventor: Stephen Radzevich
  • Patent number: 9657827
    Abstract: A selectively lockable differential, comprising a plurality of torque sensitive pins, an outer housing, a first side gear comprising first gear teeth, a second side gear comprising second gear teeth, a pinion shaft, two pinion gears rotationally coupled to the pinion shaft, each pinion gear comprising pinion gear teeth coupled to the first gear teeth and the second gear teeth, and a collar comprising collar teeth for selectively engaging the gear lugs of the first side gear, the torque sensitive pins operatively coupling the collar to the outer housing.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 23, 2017
    Assignee: Eaton Corporation
    Inventors: Suraj Gopal, Pradeep Yuvraj Chavan, Patrick John McMillan
  • Patent number: 9651132
    Abstract: A cast aluminum differential housing for a motor vehicle powertrain having cast iron inserts. The housing is cast of light weight aluminum which weighs approximately one-third that of iron which has formerly been used to fabricate such housings. At locations of significant loads and wear, such as the mountings for the stub shaft associated with the two idler bevel gears, iron inserts are cast into the housing. The housing thus weighs significantly less than a comparable iron differential housing but since the two significant wear and load bearing regions include cast iron inserts, the aluminum differential housing of the present invention has the ruggedness, durability and service life of the much heavier iron housing.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations, LLC
    Inventors: Mahesh Annasaheb Mummigatti, Sachin Chandrakant Pagare
  • Patent number: 9568084
    Abstract: A differential device includes: a differential gear mechanism; and an integrated differential case housing the mechanism, the differential case including bearing bosses formed integrally on one and other side portions thereof and aligned on a same axis to be rotatably supported by a transmission case; a work window being provided in the differential case; sleeves rotatably supported by the bosses and connected to side gears of the mechanism liquid-tightly. The sleeves can be passed through an inside of the differential case from the window and fitted and inserted to inner peripheries of the bosses, sleeve retainers are provided between the sleeves and the bosses, and seal devices for preventing lubricating oil in the differential case from flowing out are provided between the side gears and the sleeves. Accordingly, when drive shafts are removed from the differential device, the oil in the transmission and differential cases does not flow out.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: February 14, 2017
    Assignee: Musashi Seimitsu Industry Co., Ltd.
    Inventors: Yoichi Yanase, Tetsuro Hamada, Shinichi Murata
  • Patent number: 9534680
    Abstract: A motor vehicle differential gear has at least one housing part as a first gear part, and a crown wheel as a second gear part. The first and second gear parts are connected via respective first connection surfaces running in the axial direction by a press fit, and via respective second connection surfaces running at an angle to the axial direction, forming a welding seam. One of the gear parts is formed from a steel and the other gear part from a cast iron material, as well as such a differential gear in which the second connection surfaces connect directly to the first connection surfaces.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: January 3, 2017
    Assignee: Daimler AG
    Inventors: Alexander Berndt, Andreas Buenting, Christian Elsner, Christian Krajewski, Hartmut Krauter, Lena Thome
  • Patent number: 9534679
    Abstract: A differential assembly for a powertrain of a vehicle includes a differential housing, a differential shaft, and a retainer ring. The differential shaft retains a pair of opposing bevel gears within the differential housing in mesh with a pair of opposing side gears each connected to a half shaft. The retainer ring is disposed on the outside of the differential housing covering the bores in which is fit the differential shaft.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: January 3, 2017
    Assignee: GM Global Technology Operations, LLC
    Inventors: Bhaskara Ch, Vishal Khare, Venkateswar Katha
  • Patent number: 9476493
    Abstract: In a differential device and a method of manufacturing it, a press-fit regulation device regulating a press fit depth of the flange and the ring gear is provided in a press-fit portion between the flange and the ring gear, the flange includes thin-walled portions with recessed portions and thick-walled portions without the recessed portions, the thick-walled portions and the ring gear are welded from a second bearing boss side to a predetermined weld depth, and the thin-walled portions and the ring gear are welded from the second bearing boss side to a weld depth shallower than the predetermined weld depth or not welded. Accordingly, the press-fit portion between the flange and the ring gear can be efficiently welded even in a case where work windows of a differential case cut into a side surface of the flange on a first bearing boss side to form the recessed portions.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 25, 2016
    Assignee: Musashi Seimitsu Industry Co., Ltd.
    Inventor: Yoichi Yanase
  • Patent number: 9469192
    Abstract: A vehicle differential inversion assembly for splitting the torque of the vehicle power source two ways to opposite sides of the vehicle, to a set of wheels; a left wheel and a right wheel. The wheels are supported by respective independent left and right suspensions allowing vertical travel of each wheel. The assembly features a differential module for splitting the torque two ways. The differential module is disposed between the left wheel and the right wheel and has a left side output and a right side output. The outputs spin at opposed directions. A left output axle couples with the left side output and extends to the left of the differential module. A right output axle couples with the right side output and extends to the right of the differential module. A left wheel axle is cross-coupled with the right output axle by a right inversion joint disposed at a distance to the right of the differential module. The left wheel axle extends toward and turns the left wheel.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 18, 2016
    Assignee: REGO VEHICLES LTD.
    Inventors: Ami Kamil, Izik Mini
  • Patent number: 9453568
    Abstract: A drivable axle, in particular a rigid axle, is provided for a motor vehicle the axle has a differential gear, at least one gear bearing, at least one axle tube, and at least one axle shaft. The differential gear features a volume (V1) for lubricant separate from the axle tube. The differential gear is sealed at the axle tube by using a gap-type seal.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: September 27, 2016
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Michael Anetzberger, Robert Peter, Manfred Geier
  • Patent number: 9440671
    Abstract: A utility vehicle with ergonomic, safety, and maintenance features is disclosed. A vehicle is also disclosed with improved cooling, suspension and drive systems. These features enhance the utility of the vehicle.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: September 13, 2016
    Assignee: Polaris Industries Inc.
    Inventors: Adam J. Schlangen, Jason K. Raska
  • Patent number: 9410605
    Abstract: A differential assembly having at least one link shaft that may be disposed in a case between a first gear and a second gear. The link shaft may have a bend portion that may not be coaxially disposed with first and second end portions of the link shaft. A pinion gear may engage the first and second gears may be rotatably disposed on the link shaft.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: August 9, 2016
    Assignee: ArvinMeritor Technology, LLC
    Inventor: Robert D. Kluck
  • Patent number: 9387756
    Abstract: A hybrid drive arrangement for a motor vehicle comprising two close-coupled electric traction motors/generators on the output of the vehicle differential. A constant velocity joint coupling device is incorporated into the central axis of the traction motors between the differential output shafts and the independent articulated axle shafts for the drive wheels. One embodiment comprises a kit for retrofitting an existing vehicle. The kit comprises two electric traction motors/generators incorporating the constant velocity joint coupling devices, two devices for mounting the traction motors to each side of the differential case between the differential and the independent, articulated axle shafts of the existing vehicle, a battery system electrically coupled to the traction motors, two traction motor controllers, and a vehicle sensing and control system. The arrangement provides for improved acceleration, deceleration, cornering, ease of parking, and fuel economy.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: July 12, 2016
    Assignee: Quanta Products LLC
    Inventors: Gary Ken Whiting, Hilary Paige Whiting
  • Patent number: 9261183
    Abstract: In a differential device, an outer tube portion is formed in one of a side gear and a sleeve, and an inner tube portion fitted to an inner periphery of the outer tube portion is formed in the other. A falling-off prevention device for preventing axial relative movement of the outer and inner tube portions is provided between the outer and inner tube portions. A seal member for shutting off communication between the falling-off prevention device and an inside of a differential case is set in a fitting portion between the outer and inner tube portions. Accordingly, lubricating oil in the differential case is prevented from leaking out of a space between the side gear and the sleeve without performing a special process such as pressure welding or adhesive bonding during assembly and which has good ease of assembly.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: February 16, 2016
    Assignee: Musashi Seimitsu Industry Co., Ltd.
    Inventors: Yoichi Yanase, Tsunefumi Niiyama
  • Patent number: 9199533
    Abstract: A vehicle differential apparatus is provided with: a differential case rotatable around a rotation axis in which a first shaft insertion hole is formed along a direction perpendicular to the rotation axis, a pair of side gears, a pinion gear meshing with the paired side gears in which a second shaft insertion hole is formed in an axial center portion of the pinion gear, and a pinion shaft including an insertion end portion inserted in the first shaft insertion hole of the differential case and a pinion gear support portion inserted in the second shaft insertion hole of the pinion gear to rotatably support the pinion gear. The pinion gear is supported so as to be movable in the rotation axis direction by a meshing reaction force generated from a meshing engagement with the pair of side gears.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: December 1, 2015
    Assignee: JTEKT CORPORATION
    Inventors: Makoto Nishiji, Tomoki Yoshihama
  • Patent number: 9157515
    Abstract: An axle assembly having an axle housing, an input pinion, a ring gear, a ring gear bearing, a differential assembly and a pair of axle shafts. The input pinion is mounted to the axle housing for rotation about a first axis. The ring gear is received in the axle housing and meshed with the input pinion. The ring gear bearing supports the ring gear on the axle housing for rotation about a second axis. The ring gear bearing has a bearing race, which is integrally formed with the ring gear, and a plurality of first bearing element that contact the first bearing race. The differential assembly has a differential case, which is coupled to the ring gear for rotation therewith, and a pair of output members. Each axle shaft being coupled for rotation with a corresponding one of the output members.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 13, 2015
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: James P. Downs, Paul J. Valente
  • Patent number: 9157516
    Abstract: A differential case assembly includes a differential case and an integral end cap and ring gear assembly. The differential case has an open end and a side wall with an exterior surface. The integral end cap and ring gear assembly is disposed over the open end of the differential case and adjacent the exterior surface. A first interior portion of the integral end cap and ring gear assembly abuts the exterior surface of the differential case to define a weld joint interface. The integral end cap and ring gear assembly is configured to permit a welding operation at the weld joint interface.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: October 13, 2015
    Assignee: Metal Forming & Coining Corporation
    Inventor: Timothy J. Cripsey
  • Patent number: 9068640
    Abstract: A fastening structure for a ring-gear and a differential case comprises a differential case which is provided with: a ring gear having a gear section formed on the outer peripheral surface thereof, and a plurality of notch portions formed on the inner peripheral surface thereof; a press-fitting surface whereon the ring gear is press-fitted; and a flange section which is forced against and caulked to the notch portions, at the end of the press-fitting surface. After the ring gear has been press-fitted to the press-fitting surface, the flange section is forced toward the notch portions, and thus the differential case is caulked and fastened to the ring gear. The notch portions have stepped surfaces , and thus rattling generated during torque transmission can be suppressed.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: June 30, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Taniguchi, Yoshihiko Ukai, Hirokazu Tsunekawa, Hiroyuki Shioiri
  • Patent number: 9039560
    Abstract: A differential case assembly includes a differential case and a pinless gear assembly. The differential case has an open end and a side wall with an interior surface. The pinless gear assembly includes a retainer insert and a side gear with a shaft extending outwardly therefrom. The retainer insert is disposed adjacent the interior surface of the side wall. The retainer insert defines at least a portion of an aperture that receives an end of the shaft to align the gear assembly within the differential case.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: May 26, 2015
    Assignee: Metal Forming & Coining Corporation
    Inventors: Timothy J. Cripsey, Robert J. Herston
  • Publication number: 20150141194
    Abstract: A differential for use in a vehicle drive train having a pair of rotary members including a gear case that is operatively supported in driven relationship with respect to the drive train and a pair of side gears mounted for rotation with a respective one of the rotary members in the gear case. The differential also includes a spider mounted for rotation with the gear case and at least one pair of pinion gears mounted for rotation with the spider and in meshing relationship with the side gears. The side gears have concave teeth flanks and the pinion gears have convex teeth flanks to increase power density through the differential.
    Type: Application
    Filed: May 22, 2013
    Publication date: May 21, 2015
    Applicant: EATON CORPORATION
    Inventor: Stephen Radzevich
  • Patent number: 9022893
    Abstract: A hypoid gear set for a vehicle drivetrain includes a pinion gear in meshing engagement with a ring gear. The hypoid gear set has a negative pinion offset. The hypoid pinion and ring gears provide a predetermined gear ratio that can be varied up to a fifty percent faster ratio within a single carrier packaging envelope defined by a maximum ring gear diameter.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: May 5, 2015
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Wagner Yukio Hirao, I-Chao Chung, Tomaz Dopico Varela, Silvio M. Yamada
  • Publication number: 20150119181
    Abstract: A clutch system selectably connects a vehicle rear axle to a motor. The clutch system includes an intermediate shaft to fixably attach to a side gear of a differential for rotation therewith. A case of the differential is connected to the motor via a gear train. Another side gear of the differential is affixed to an output shaft, and the output shaft extends through a center of rotation of an armature of the motor to connect to a road wheel of a vehicle. A clutch is to selectably connect the intermediate shaft to another output shaft connected to another road wheel of the vehicle. An actuator is to actuate the clutch to an engaged state and thereby selectably connect the intermediate shaft to the other output shaft. The output shaft, the other output shaft, and the motor rotate independently when the clutch is not in the engaged state.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 30, 2015
    Inventor: Matthew G. Fox
  • Patent number: 9011286
    Abstract: The present invention provides a controllable epicyclic type clutch device coupled with hybrid power train structured by using the controllable brake device to manipulate an epicyclic gear set (EG101), in which the power train having the clutch device structured by using the controllable brake device to manipulate the epicyclic gear set (EG101) can be widely applied in a dual rotary kinetic power source or a triple rotary kinetic power source, the structural configuration includes a coaxial in-series structure or a multiple axial in-parallel structure for satisfying the requirement of applied space.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: April 21, 2015
    Inventor: Tai-Her Yang
  • Patent number: 9011285
    Abstract: In a drive arrangement for wheels of a motor vehicle which are driven by means of an electric machine via a differential, the electric machine includes a rotor and a stator and drives a drive element of the differential whose output shafts output to the wheels of the motor vehicle. In order to achieve a structurally compact construction which enables favorable transmission ratios the rotor outputs to the drive element of the differential and that by interposing a gear mechanism, the drive element and/or the output shafts are supported offset to the rotation axis of the rotor.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: April 21, 2015
    Assignee: Audi AG
    Inventor: Johann Märkl
  • Publication number: 20150099602
    Abstract: A motor vehicle differential gear has at least one housing part as a first gear part, and a crown wheel as a second gear part. The first and second gear parts are connected via respective first connection surfaces running in the axial direction by a press fit, and via respective second connection surfaces running at an angle to the axial direction, forming a welding seam. One of the gear parts is formed from a steel and the other gear part from a cast iron material, as well as such a differential gear in which the second connection surfaces connect directly to the first connection surfaces.
    Type: Application
    Filed: January 23, 2013
    Publication date: April 9, 2015
    Inventors: Alexander Berndt, Andreas Buenting, Christian Elsner, Christian Krajewski, Hartmut Krauter, Lena Thome
  • Publication number: 20150094183
    Abstract: An axle assembly includes first and second spiral bevel gears meshing with a pinion, a gearset including a sun gear secured to the first bevel gear, a ring gear secured to the second bevel gear, and planet pinions supported on a carrier and meshing with the sun gear and ring gear, and a differential including an input secured to the carrier, and first and second outputs secured, respectively to first and second output shafts.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Ford Global Technologies, LLC
    Inventor: David A. Janson
  • Publication number: 20150051041
    Abstract: A differential gear for a vehicle including a pair of pinion gears and a pair of side gears meshed with the pair of pinion gears at a right angle. In order to improve the strength of the pinion gears and the side gears, less teeth are provided, and the size of each tooth is increased. The reference cone angle and the cone distance may be varied in accordance with the gear ratio, which may make it necessary to increase the size of a differential case that houses the gears. For front-drive vehicles, which is greatly limited in terms of space it may be difficult to suppress an increase in dimension of the differential gear. Accordingly, provided is a compact gearing that has improved strength in the pinion and side gears.
    Type: Application
    Filed: February 20, 2013
    Publication date: February 19, 2015
    Applicant: AISIN AW CO., LTD.
    Inventors: Yoshihiko Inukai, Hiroki Ishikawa
  • Publication number: 20150038278
    Abstract: A compact bevel differential gear mechanism with pinion bevel gears arranged in a tightly packed array is disclosed. The compact bevel differential gear mechanism includes first and second side bevel gears that are co-axially aligned along an axis of rotation. The compact bevel differential gear mechanism also includes an array of pinion bevel gears mounted between the first and second side bevel gears. The pinion bevel gears intermesh with the first and second side bevel gears to form a torque transfer arrangement configured for transferring torque between the pinion bevel gears and the first and second side bevel gears and for allowing the first and second side bevel gears to rotate at different rotational speeds with respect to one another. Each of the pinion bevel gears has an actual gear face angle value that is within +/?10 percent of a target gear face angle value.
    Type: Application
    Filed: September 5, 2012
    Publication date: February 5, 2015
    Applicant: EATON CORPORATION
    Inventor: Matthew G. Fox
  • Publication number: 20150024897
    Abstract: A torque transmitting assembly, such as a differential, including a tubular housing having a polygonal cross-section including a plurality of angularly related surfaces and a torque transmitting member within the housing having flat surfaces engaging the flat surfaces of the housing, such that torque is transmitted through the housing. In a differential, the torque transmitting member includes annular side gears having a plurality of annular teeth and annular pinion gears including gear teeth meshing with the gear teeth of the side gears.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 22, 2015
    Applicants: SUBA CONULTING, iNC., Value Extraction LLC
    Inventor: Joseph Szuba
  • Patent number: 8932172
    Abstract: A differential includes a pinion shaft holder, a differential case, a first side gear, a second side gear, a first spring and a second spring. The differential case includes a first side boss portion and a second side boss portion. The first spring is interposed between the first side boss portion and the first side gear. The second spring is interposed between the second side boss portion and the second side gear. A recessed portion is provided on the pinion shaft holder and is configured to avoid interference with an auxiliary tool. The auxiliary tool maintains one of the first spring and the second spring in the compressed state.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: January 13, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.
    Inventors: Koichi Tanaka, Tatsuya Kawamura, Hiroya Mizuta, Koichi Nakamura, Rikiya Kubo, Yoshihiko Sasaki
  • Patent number: 8915332
    Abstract: A mechanical device for reducing the energy absorbed by an electric motor of a handling plant. The device includes a first rotating member moved by the motor of the handling plant. The device also includes a second rotating member connected to the first member through a first transmission apparatus. A third rotating member is connected to the second rotating member through a second transmission apparatus, which develops a transmission ratio equal to unity. The device further includes a fourth rotating member operatively connected to the rotor of the electric motor. The fourth rotating member and the third rotating member are connected through a third transmission apparatus, which develops a transmission ratio equal to unity. The device includes a sixth rotating member connected to a fifth rotating member through a fifth transmission apparatus. The sixth rotating member and the first rotating member are connected through a sixth transmission apparatus.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: December 23, 2014
    Inventor: Giorgio Jezek
  • Patent number: 8904896
    Abstract: A gear device includes a gear, a pin, a plate member, a retainer portion, a contact part and a non-contact part. The pin is inserted into an opening of the gear. The plate member is disposed on a face of the gear and attached along an outer peripheral surface of the pin. The retainer portion is disposed in a vicinity of an end portion of the pin, with the plate member being interposed between the retainer portion and the face of the gear. The contact part is formed by faced surfaces of the retainer portion and the plate member with parts of the faced surfaces annularly making contact in a position closest to an outer peripheral surface of the pin. The non-contact part is formed by the faced surfaces with parts of the faced surfaces not making contact in a position away from the outer peripheral surface of the pin.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: December 9, 2014
    Assignee: Komatsu Ltd.
    Inventors: Masao Ohno, Junichi Matsui, Terumasa Imajyou, Masahiko Ishiyama