With Means To Cool Or Lubricate Clutch Parts Patents (Class 192/70.12)
  • Patent number: 10337566
    Abstract: An improved multi-disc wet clutch assembly. The improvements include an inner clutch hub having eighteen holes extending through a wall of the inner clutch hub, arranged in six series of three holes with each series being disposed approximately sixty degrees apart from each other and starting at a different position along the length of the inner clutch hub wall. The improvements further include a diaphragm plate disposed within a bore at the distal end of the inner clutch hub. Methods of retrofitting preexisting clutch assemblies are also described.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: July 2, 2019
    Inventor: Jayson Miles
  • Patent number: 10221897
    Abstract: A clutch apparatus includes a clutch pack including a plurality of friction disks having friction surfaces. The clutch pack may include a plurality of cooling inlets. The clutch pack may selectively transfer torque from a torque supplying member to a torque receiving member. The clutch apparatus may include a rotating manifold having at least a first cooling port for directing a cooling fluid to the clutch pack and at least a portion of the rotating manifold may be coupled for rotation with at least a portion of the friction disks. A fluid-flow area of at least a subset of the plurality of cooling inlets may be dissimilar from other of the plurality of cooling inlets for enabling a desired fluid flow to the friction disks.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: March 5, 2019
    Assignee: Eaton Cummins Automated Transmission Technologies LLC
    Inventors: Martin E. Kummer, Graeme Andrew Jackson, Jeffrey Philip Hawarden
  • Patent number: 9951826
    Abstract: Segmented and laminated steel core plates (31,31?) having at least one groove or channel formed at the interface of the core plates for either double sided or single sided wet clutch friction plates or separator plates and a process for making the same are disclosed.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: April 24, 2018
    Assignee: BorgWarner Inc.
    Inventors: Richard Vogele, Michael Wagner, Martin P. Keating
  • Patent number: 9534639
    Abstract: A multi-plate friction clutch wherein lubrication sites of the clutch can be efficiently supplied with oil to be sufficiently lubricated. A multi-plate friction clutch includes a clutch outer, a clutch center, clutch plates, and a pressure plate. A center ring protrusion protruding into a cylindrical shape from the outer surface of a center bottom wall part is formed at substantially the same radial position as a plurality of communication holes. Furthermore, a ring recess opened toward the axial center is formed in the inner circumferential surface of the center ring protrusion and the communication holes are so opened as to face the ring recess.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: January 3, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Tsuguto Inayama
  • Patent number: 9453540
    Abstract: A double clutch system for a drive train that includes a drive unit and a double clutch transmission. The double clutch system includes two wet-running, multi-plate clutches that include inner plate carrier components, each of which is non-rotatably connected to a respective transmission input shaft, and between which cooling oil is supplied to the multi-plate clutches. A pressure chamber is provided for the cooling oil radially inwardly of at least one of the multi-plate clutches and in an axial direction between the inner plate carrier components.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: September 27, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Ivo Agner, Oliver Nöhl
  • Patent number: 9388866
    Abstract: A clutch system comprises a hydraulic control circuit for controlling a hydraulic system. The hydraulic control circuit comprises processor-executable control instructions to perform a method for controlling hydraulic pressure. The method comprises receiving a target hydraulic pressure. The method generates and outputs pressure control valve commands based on a detected current hydraulic pressure, a detected temperature, and the target hydraulic pressure by implementing proportional integral derivative (PID) calculations and sliding mode calculations while carrying out a closed loop pressure control. The method converts the target hydraulic pressure into motor speed control commands and into motor direct current commands by implementing a linear quadratic regulator (LQR) calculation while carrying out a closed loop speed control. The method controls the electric motor using the motor direct current commands. And, the method controls the pressure control valve by using the pressure control valve commands.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: July 12, 2016
    Assignee: Eaton Corporation
    Inventor: Christian Thomas Chimner
  • Patent number: 9360054
    Abstract: A friction clutch including an input side and an output side arranged to rotate, a fluid chamber fillable with a cooling liquid including a first friction partner, a second friction partner, an inner disc carrier coupled to one of the two friction partners radially on the outside, and a compression device having a pressure chamber fillable with a pressure fluid to provide axial compression of the friction partners to generate a torque-locking engagement between the input side and the output side. A deflection device is provided in the fluid chamber wherein the inner disc carrier includes at least one first passage for the cooling liquid to pass through, and the deflection device feeds back at least a first portion of the cooling liquid flowing in a radially outward direction between the friction partners into a radially inward direction to the first passage of the inner disc carrier.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 7, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Michael Kuehnle, Toros Guellueck
  • Patent number: 9353803
    Abstract: A power transmitting apparatus comprising a switching device for switching an urging device between an urging force applying position wherein an abutment between the other end of the urging device and the pressure member is kept to apply the urging force of urging device to the pressure member when the intermediate member is moved toward the pressure member, and an urging force cutting-off position wherein the other end of the urging device is separated from the pressure member to cut-off the urging force of urging device to the pressure member when the intermediate member is moved toward the pressure member. In some embodiments, the urging device is set at the urging force applying position while the intermediate member is stopped when the vehicle is stopped and the urging device is set at the urging force cutting-off position while the intermediate member is rotated when the vehicle is running.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: May 31, 2016
    Assignee: KABUSHIKI KAISHA F.C.C.
    Inventors: Katsu Yoshimoto, Han Hiong Chen, Akira Kosaka
  • Patent number: 9212703
    Abstract: A clutch including a reaction plate configured to exert a compression force. The clutch further includes a friction plate having a surface opposing the reaction plate. A friction material layer has a first surface attached to the surface of the friction plate, and a second surface opposing the reaction plate. The second surface of the friction material layer has a plurality of dimples formed therein. Further, a lubrication fluid is disposed between the reaction plate and the friction material layer for transferring the compression force and providing a lubrication layer between the reaction plate and the friction plate.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: December 15, 2015
    Assignee: GM Global Technology Operations, LLC
    Inventors: Gregory Mordukhovich, Sergei Glavatskikh
  • Patent number: 9206860
    Abstract: A clutch plate in an annular shape, the clutch plate includes: a plurality of lubricating grooves on one end face and the other end face of the clutch plate in an axial direction; and a plurality of windows passing through the clutch plate in the axial direction. The lubricating grooves are formed with plastic deformation, in a same phase on both the end faces, and extended up to outer peripheral edges and inner peripheral edges of both the end faces. A plurality of intersection points where the lubricating grooves intersect with each other are positioned in other areas than at least one of the outer peripheral edges, radially outer edges of the windows, radially inner edges of the windows, and the inner peripheral edges, of both the end faces.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: December 8, 2015
    Assignees: JTEKT CORPORATION, NHK SPRING CO., LTD.
    Inventors: Hiroyuki Ando, Kunihiko Suzuki, Junji Ando, Tatsuki Shimura
  • Patent number: 9140310
    Abstract: A disc carrier of a friction clutch is described and illustrated, and in some embodiments has a subassembly of a modular structure which is composed of interconnectable component parts. The component parts can include a holding ring, at least one web, and a base plate.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: September 22, 2015
    Assignee: HOERBIGER ANTRIEBSTECHNIK GMBH
    Inventors: Ahmed Sahyoun, Falk Nickel, Georg Ruprecht
  • Patent number: 9140324
    Abstract: A coupling assembly for use in transmitting force includes a housing which at least partially encloses a rotatable disc. The housing has a plate portion with an annular force transmitting surface which is engagable with the rotatable disc. A cooling fluid channel is at least partially defined by a side of the plate portion opposite from the force transmitting surface. A plurality of indentations disposed in an inner surface 60b of the force transmitting surface of the plate portion create turbulent and secondary flow in a path of flow of cooling fluid through the cooling fluid channel. A cooling fluid inlet includes a passage having a portion with a large cross section connected in fluid communication with a radially outer portion of the cooling fluid channel. A portion of the inlet passage having a small cross section is connected in fluid communication with a radially inner portion of the cooling fluid channel. Optional ribs extend across the radially inner and outer portions of the cooling fluid channel.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: September 22, 2015
    Assignee: EATON CORPORATION
    Inventor: Thaveesak Boonpongmanee
  • Patent number: 9080642
    Abstract: A reversing gear (13d) is disposed between a fifth fixed gear (13a) having a smallest outer diameter among respective gears provided in a first main shaft (4) and a second main shaft (5) and a sixth idling gear (13b) having a smallest outer diameter among respective gears provided in a first sub-shaft (6) to always mesh with the respective gears. A first synchronizing sleeve (21) is disposed to overlap a bearing (8a) of a third sub-shaft (8) in the axial direction of the second main shaft (5). A second synchronizing sleeve (22), a third synchronizing sleeve (23), and a fourth synchronizing sleeve (24) are disposed to overlap a bearing (8b) of the third sub-shaft (8) in the axial direction of the second main shaft (5).
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: July 14, 2015
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yuichi Ushiroda, Takuya Yamamura
  • Patent number: 9027724
    Abstract: A lockup clutch mechanism of a hydraulic transmission device includes a lockup piston that is capable of moving toward a front cover to press first and second friction plates, and a flange member that together with the lockup piston defines an engagement-side oil chamber. The front cover and the lockup piston define a first lubricant passage that supplies hydraulic oil to the first and second friction plates. A second lubricant passage communicating with the first lubricant passage is formed in a centerpiece of the front cover. A first shaft oil passage communicating with the engagement-side oil chamber and a second shaft oil passage communicating with the second lubricant passage are formed in an input shaft.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 12, 2015
    Assignee: Aisin AW Co., Ltd.
    Inventors: Junji Tanaka, Yuito Abe, Kazuyoshi Ito, Koji Maeda, Naohisa Momiyama
  • Publication number: 20150114789
    Abstract: A wet clutch comprising a first plate carrier and a second plate carrier which have different diameters, as well as an oil bath in which the plate carriers are arranged concentrically and rotatable with respect to one another. Here, the first plate carrier includes on its circumference a deflection element, by means of which oil which is moving tangentially with respect to the first plate carrier is deflected radially in the direction of the second plate carrier.
    Type: Application
    Filed: May 6, 2013
    Publication date: April 30, 2015
    Inventors: Michael Kuehnle, Toros Guelluek
  • Patent number: 8997962
    Abstract: A clutch apparatus includes a clutch outer member for supporting friction discs, which are nonrotatable relative to the clutch outer member, and are axially slidable along a clutch axis; a clutch inner member for supporting clutch discs, which are nonrotatable relative to the clutch inner member, and are axially slidable along the clutch axis, and a pressure plate having a deep recess for accommodating a clutch spring engaged with the clutch inner member. The deep recess includes a bottom portion having a spring seat for receiving the clutch spring, and a partially cylindrical shape wall portion having an axis parallel to the clutch axis. The wall portion is oriented towards the clutch axis. The deep recess has a communicating portion formed therein for establishing the communication between the inner and outer surfaces of the wall portion so as to discharge oil towards the friction and clutch discs during operation.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: April 7, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masaya Yazaki, Atsushi Kobayashi, Akio Senda, Seiji Anzai
  • Patent number: 8967342
    Abstract: The invention relates to a brake mechanism (1) for agricultural utility vehicles. In the case of the brake mechanism (1), during a brake application an additional quantity of oil is supplied to a brake chamber (150) via an inlet manifold (180), which is fluidically connected to an oil chamber (130). The service brake is formed so that, when the service brake is operated, a first control element (120) is moved towards the brake elements (140, 141) in such a way that a brake chamber (150) is fluidically connected to the inlet manifold (180) and thus ensures an additional oil supply from the oil chamber (130).
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: March 3, 2015
    Assignee: AGCO GmbH
    Inventors: Martin Brenninger, Klaus Bayer
  • Patent number: 8960380
    Abstract: A brake for a rotating member is disclosed. The brake is used with a liquid coolant, and includes a housing for containing the liquid, a stationary element disposed in the housing, a wear plate disposed on the stationary element, a friction element coupled to the rotating member for contacting the wear plate, and a removable heat transfer insert disposed adjacent the wear plate and in fluid communication with the coolant, the heat transfer insert consisting of a non-galvanic material.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: February 24, 2015
    Assignee: Oil States Industries, Inc.
    Inventor: Barry S. McClintic
  • Patent number: 8939268
    Abstract: A hydraulic actuating device for actuation of clutches in a multi-clutch transmission for motor vehicles is disclosed, comprising a multi-circuit pump having an electric pump drive, at least two pressure circuits hydraulically connected with the pump, and a reservoir for hydraulic fluid, from which the fluid can be conveyed by the pump to the pressure circuits. In this regard, each pressure circuit starting from the pump comprises a non-return valve blocking in the direction of the pump, an electromagnetically actuable proportional throttle valve, by way of which the respective pressure circuit can be the subject of defined hydraulic relief in direction towards the reservoir, and at the outlet side a slave cylinder operatively connected with an associated clutch. The pump drive and the proportional throttle valves are electrically connected with a control unit, which co-ordinates the electrical activation of the pump drive and the proportional throttle valves.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: January 27, 2015
    Assignee: FTE automotive GmbH
    Inventor: Wilhelm Heubner
  • Patent number: 8939269
    Abstract: A friction plate for a clutch assembly includes a core plate and a plurality of friction segments made of a friction material. A plurality of grooves are disposed between said plurality of friction segments. Each segment has tapered sides so that the grooves have a first width adjacent the outer diameter of the core plate and a smaller second width smaller adjacent the inner diameter of the core plate. This tapered groove structure directs oil from the outside the clutch assembly to the inside to improve cooling efficiency.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: January 27, 2015
    Assignee: Eaton Corporation
    Inventors: Bulent Chavdar, Scott T. Roth
  • Patent number: 8932169
    Abstract: A backing plate for a friction clutch pack includes a shoulder or flange through which a plurality of radial drain passageways extend. The radial drain passageways intersect a circumferential channel which collects hydraulic fluid from the friction clutch. The radial passageways, assisted by centrifugal force, direct hydraulic fluid flow radially outwardly, away from other friction pack clutches and thus prevent such fluid from creating drag and causing increased spin losses as it flows to and through disengaged clutch packs.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: January 13, 2015
    Assignee: GM Global Technology Operations, LLC
    Inventor: Robert Neil Paciotti
  • Patent number: 8925704
    Abstract: The present invention is to provide a clutch device that keeps a half-clutch range wide for a long time. A clutch device 1 is arranged in such a manner that an intermediate ring 24 is disposed on the pressure plate 23 so as to be slightly movable in a direction of pressing by a diaphragm spring 21; air passageways 31 are radially disposed at regular circumferential intervals between the intermediate ring 24 and the pressure plate 23 so as to let the inner and outer peripheries communicate with each other; plate springs 25 are disposed in the air passageways 31 to bias constantly the intermediate ring 24 and the pressure plate 23 in a direction of separating from each other; and a force of the pressing operation by the diaphragm spring 21 is transferred to the pressure plate 23 via the intermediate ring 24 and the plate springs 25.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: January 6, 2015
    Assignee: OS Giken Co., Ltd.
    Inventor: Masaharu Okazaki
  • Patent number: 8919512
    Abstract: An arrangement of a dual clutch transmission that incorporates a positive pressure lubrication cooler heat exchanger that is integrated into a cover of a wet clutch module of the transmission is provided. Additionally, a method of assembling a wet dual clutch transmission assembly is provided.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: December 30, 2014
    Assignee: BorgWarner Inc.
    Inventor: Larry A. Pritchard
  • Patent number: 8919509
    Abstract: A torque transfer device, in particular in the power train of a motor vehicle, for transferring torque between a drive unit and a shaft that is rotatable around an axis of rotation, in particular a transmission input shaft, having a hydrodynamic torque converter, which includes a converter cover that is connectable to or connected to the drive unit, which converter cover may be coupled via an impeller to a turbine wheel to transfer torque, which turbine wheel is bridgeable, to transfer torque, by a torque converter lockup clutch, which includes a piston that is movable to a limited extent in the axial direction and is constructed as a multi-plate clutch with a plate pack that includes outer plates which are connected to an outer plate carrier in a rotationally fixed connection, and inner plates which are connected to an inner plate carrier in a rotationally fixed connection.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: December 30, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Stephan Maienschein
  • Patent number: 8919520
    Abstract: The present disclosure relates to durability enhancement techniques for a dry-clutch vehicle transmission. A cooling system that provides a direct convective cooling path to friction surfaces is disclosed. Also disclosed is a continuously variable clutch wear compensation assembly configured to adjust the position of clutch assembly components on-demand or as needed.
    Type: Grant
    Filed: October 2, 2010
    Date of Patent: December 30, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Eli Avny, Matthew John Shelton, Steven Gerald Thomas
  • Patent number: 8910766
    Abstract: The present invention relates to a multi-disc clutch for the transfer of torque between a first clutch part and a second clutch part, having at least one first and at least one second disc that engage on another and that are movable parallel to a rotational axis of the multi-disc clutch, and having a reset device for the receiprocal ventilation of adjacent discs. The first clutch part is connected in a rotationally secure fashion to the first disc and the second clutch part is connected in a rotationally secure fashion to the second disc. The reset device has at least two reset elements that are disposed eccentrically relative to the rotational axis and distributed in the circumferential direction.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: December 16, 2014
    Assignee: Magna Powertrain AG & Co AG
    Inventors: August Kriebernegg, Alois Lafer, Robert Luef, Johannes Quenhenberger, Helmuth Sachsenmaier
  • Publication number: 20140326572
    Abstract: A friction clutch including an input side and an output side arranged to rotate, a fluid chamber fillable with a cooling liquid including a first friction partner, a second friction partner, an inner disc carrier coupled to one of the two friction partners radially on the outside, and a compression device having a pressure chamber fillable with a pressure fluid to provide axial compression of the friction partners to generate a torque-locking engagement between the input side and the output side. A deflection device is provided in the fluid chamber wherein the inner disc carrier includes at least one first passage for the cooling liquid to pass through, and the deflection device feeds back at least a first portion of the cooling liquid flowing in a radially outward direction between the friction partners into a radially inward direction to the first passage of the inner disc carrier.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 6, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Michael Kuehnle, Toros Guellueck
  • Patent number: 8863926
    Abstract: An apparatus for transmitting power to a transmission input includes first and second sources of rotary power, first and second transmission input shafts, a clutch hub driveably connected to the first and second power sources, and first and second clutches secured to the clutch hub, for alternately closing and opening a drive connection between the first and second transmission input shafts and the clutch hub.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: October 21, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: Shaun G. Knowles
  • Patent number: 8844697
    Abstract: A clutch assembly is disclosed having a driving plate arranged in communication with a thermal transfer medium for use in cooling the driving plate. The disclosed thermal transfer medium can include at least one conductive brush that is mounted with the driving plate and arranged between the driving plate and a separate cooled part of the clutch assembly for cooling the driving plate. The brush may also be resiliently biased for contact with the cooled part of the clutch assembly so that it brushes against it.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: September 30, 2014
    Assignee: Ricardo UK Ltd
    Inventors: Jonathan Charles Wheals, Lee Sykes
  • Patent number: 8821336
    Abstract: A transmission is provided having an input member, an output member, at least three planetary gear sets, a plurality of coupling members, and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish at least ten forward gear ratios and one reverse gear ratio. At least one of the torque transmitting mechanisms includes a backing plate having an annular outlet for distributing cooling fluid.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: September 2, 2014
    Assignee: GM Global Technology Operations, LLC
    Inventors: Daryl A. Wilton, James M. Hart, Edward W. Mellet, James B. Borgerson
  • Patent number: 8794414
    Abstract: A coupling assembly for use in transmitting force includes a housing which at least partially encloses a rotatable disc. The housing has a plate portion with an annular force transmitting surface which is engagable with the rotatable disc. A cooling fluid channel is at least partially defined by a side of the plate portion opposite from the force transmitting surface. A plurality of projections extend into a path of flow of cooling fluid through the cooling fluid channel. A cooling fluid inlet includes a passage having a portion with a large cross section connected in fluid communication with a radially outer portion of the cooling fluid channel. A portion of the inlet passage having a small cross section is connected in fluid communication with a radially inner portion of the cooling fluid channel. Ribs extend across the radially inner and outer portions of the cooling fluid channel.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: August 5, 2014
    Assignee: Eaton Corporation
    Inventor: Jeremy Steven Culmer
  • Patent number: 8789674
    Abstract: A torque transmission system, particularly for a vehicle, includes a housing arrangement (26) with a hub region (36) which engages in a shaft opening (22) of the gearbox housing (16) and is rotatably supported so as to be substantially fluid-tight with respect to the gearbox housing (16) by means of a bearing/seal arrangement (42); at least one first fluid port (97) which opens toward an intermediate space region (98) formed between the housing arrangement (26) and the gearbox housing (16) is provided in the housing arrangement (26) in or in the vicinity of the hub region (36), and at least one second fluid port (104) which bypasses the bearing/seal arrangement (42) and opens toward the intermediate space region (98) is provided in the gearbox housing (16) and/or in the bearing/seal arrangement (42).
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: July 29, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Jörg Sudau, Gregor Sueck, Arthur Schröder
  • Patent number: 8783433
    Abstract: The present disclosure relates to a dry-clutch transmission having various cooling techniques. Some techniques include forming different structural features on transmission components so as to create an organized air flow. The disclosed techniques are applicable to both opened and closed transmission housings.
    Type: Grant
    Filed: October 2, 2010
    Date of Patent: July 22, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: John Edward Brevick
  • Patent number: 8770365
    Abstract: A clutch assembly includes a hub rotatable about an axis and at least partially surrounding a cavity, a damper ring within the cavity, able to revolve about the axis, rotatable relative to the hub, a spring, a friction disc, forced elastically by the spring into contact with the damper ring, and a second friction disc contacting the damper ring and providing a reaction to the force of the spring.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: July 8, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Jau-Wen Tseng, Carl P. Garbacik, Michael A. Brockway, Kent E. Flory
  • Publication number: 20140174876
    Abstract: A transmission clutch cooling system includes a clutch housing defined between a drive hub of a drive member and a clutch hub of a driven member and a clutch assembly housed in the clutch housing. The clutch hub includes a hub deck having a plurality of bores therethrough, an inner annulus extending axially from the hub deck, and an outer annulus extending axially from the hub deck, the outer annulus including a plurality of radial orifices therethrough and a lip flange extending from a distal end towards the inner annulus. The clutch assembly includes a plurality of clutch plates secured to the drive hub and a plurality of friction plates secured to the driven member. A piston assembly is provided for engaging or disengaging the plurality of friction plates against the plurality of clutch plates to cause or release integrated rotation of the drive member and the driven member.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: Caterpillar Inc.
    Inventors: Kevin Gerard Meyer, Jason Robert Allen, James Hill, William McClure
  • Publication number: 20140174877
    Abstract: A clutch assembly with a rotatable clutch hub which is connected rotationally fixedly to several inner plates which may be brought into friction connection with outer plates of an associated clutch basket and form a plate pack. The clutch hub has at least one bore which allows a throughflow of a fluid from the interior of the clutch to the plates, and an oil conduction device attached to the clutch hub at the at least one bore.
    Type: Application
    Filed: October 7, 2013
    Publication date: June 26, 2014
    Applicant: MAGNA Powertrain AG & Co KG
    Inventors: Andreas PENZ, Wolfgang SCHWEIGER, Werner SCHÖFMANN
  • Patent number: 8752680
    Abstract: A braking system includes at least one rotating disc, and at least one brake disc having a front face and a rear face. The brake disc has at least four inner chambers disposed therein. Each of the at least four inner chambers has a liquid inlet and a liquid outlet and defines a liquid pathway. At least one biasing element is configured to move the front face of the at least one brake disc into contact with the at least one rotating disc.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: June 17, 2014
    Assignee: Eaton Corporation
    Inventors: Thaveesak Boonpongmanee, Daniel Wepplo, Donald Danko
  • Patent number: 8727093
    Abstract: The invention relates to a method and a device for suppressing transmission noise from automatic transmissions, in particular for motor vehicles, the transmission having at least two alternating multi-disk clutches that control a power flow via a gearing mechanism through which oil flows to cool the clutches and to reduce wear and tear on them. To create a method and a device that are of simple design and that can operate without wear and tear, it is proposed that under defined operating conditions of the transmission, the throughput amount of oil is increased in such a way that a defined drag torque occurs at the multi-disk clutch that is opened.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: May 20, 2014
    Assignee: Audi AG
    Inventors: Johann Maerkl, Alexander Schmidt
  • Patent number: 8726854
    Abstract: A fan drive system is provided having a housing connected with a pulley. A fan shaft is rotatably mounted to the housing by a clutch. A piston actuates the clutch. A pressure tube is provided for delivering pressure to the piston. A valve controls pressure against the piston. A fixed shaft rotatably supports the housing and the pulley and has passages extending through the pulley. A base connects the support shaft to a vehicle structure. An oil plate has inlets and outlets with the shaft passages. The oil plate circulates the hydraulic fluid. A coolant plate is juxtaposed between the oil plate and the structure supporting the support shaft. The coolant plate has inlets and outlets for coolant from a remote cooler.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: May 20, 2014
    Assignee: BorgWarner Inc.
    Inventors: Dale M. Pickelman, Jr., Thomas Tembreull, Michael Cooper, Paul Crockett, Michael Hagedorn, Justin Rumao
  • Patent number: 8727092
    Abstract: A segment-type friction material is composed of segment pieces. An outer circumference of the segment piece is away from an outer circumference of a core plate. A setback amount is about 2 mm. Then, a gap between the outer circumference of the segment piece and an inner peripheral part of an automatic transmission case becomes large. Thus, there is generated a part at which a gap between the segment pieces and a separator plate becomes large in a disengaged state.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: May 20, 2014
    Assignee: Aisin Kako Kabushiki Kaisha
    Inventors: Kazunari Asai, Masato Suzuki
  • Patent number: 8714333
    Abstract: The present invention provides a friction plate having a friction surface formed by sticking an annular friction material to a substantially annular core plate and wherein the friction surface is provided with a first oil groove having an opening portion opened to an inner peripheral edge of the friction plate and an end terminating at a point between the inner peripheral edge and an outer peripheral edge, and a second oil groove having an opening portion opened to the outer peripheral edge of the friction plate and an end terminating at a point between the inner peripheral edge and the outer peripheral edge.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: May 6, 2014
    Assignee: NSK-Warner K.K.
    Inventors: Tomoyuki Miyazaki, Masahiro Kobayashi
  • Patent number: 8714331
    Abstract: The present invention provides a starting clutch disposed between a transmission and an engine and having a wet type multi-plate clutch for transmitting a power, in which the wet type multi-plate clutch includes a plurality of friction plates housed for an axial sliding movement, a clutch drum for housing the friction plates, and a piston for urging a radial central region or therearound of the friction plate to engage the friction plates, and oil which has lubricated the wet type multi-plate clutch is temporarily trapped within the clutch drum and then is discharged.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: May 6, 2014
    Assignee: NSK-Warner K.K.
    Inventors: Tomoyuki Miyazaki, Shun Kitahara, Manabu Sawayanagi, Masaki Sakai, Yosuke Ikeda
  • Patent number: 8708120
    Abstract: A multi-plate clutch including a clutch hub having a cylindrical portion; a plurality of clutch plates splined to the outer periphery of the cylindrical portion of the clutch hub, and a plurality of spline teeth being formed on the outer periphery of the cylindrical portion of the clutch hub. A recessed portion is formed on the inner side of each spline tooth, and a weir portion is formed at one end of each recessed portion by depressing one portion of the spline tooth to the inner side on one end side of the cylindrical portion. Thus forming a depressed portion, and removing, with one portion of the depressed portion left behind, a portion of the cylindrical portion on the one end side of the one portion of the depressed portion.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: April 29, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Takeshi Torii, Takuro Iwase
  • Publication number: 20140097059
    Abstract: A lubricant composition comprising lubricating oil and a compound containing phosphorus and an amine of formula I: wherein R1 is a hydrocarbon group and at least one of R1 is selected from: —(C1-C20)alkyl, —(C1-C20)alkenyl, —(C5-C20)cycloalkyl; R is selected from: —(C4-C20)alkyl, —(C4-C20)alkenyl, —(C5-C20)cycloalkyl; and wherein R2, R3 and R4 are independently selected from: —H, —(C6-C36)alkyl, —(C6-C36)alkenyl, —(C6-C36)cycloalkyl, wherein at least one of R2, R3 and R4 is not H; X is O or S; Y1 and Y2 are selected from S and O; m is 1 or 2, n is 0 or 1, p is 1 or 2, provided that m+n+p=3 and q=0.8 to 1.2*p, wherein the compound provides at least 48 ppm of phosphorus and a molar ratio phosphorus to nitrogen (P/N) in the range of about 0.40 to about 1.50.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: Afton Chemical Corporation
    Inventors: Hong-Zhi TANG, Lee D. SAATHOFF
  • Publication number: 20140090947
    Abstract: The present invention provides a starting clutch disposed between a transmission and an engine and having a wet type multi-plate clutch for transmitting a power, in which the wet type multi-plate clutch includes a plurality of friction plates housed for an axial sliding movement, a clutch drum for housing the friction plates, and a piston for urging a radial central region or therearound of the friction plate to engage the friction plates, and oil which has lubricated the wet type multi-plate clutch is temporarily trapped within the clutch drum and then is discharged.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: NSK-WARNER K.K.
    Inventors: Tomoyuki MIYAZAKI, Shun KITAHARA, Manabu SAWAYANAGI, Masaki SAKAI, Yosuke IKEDA
  • Patent number: 8672113
    Abstract: Hydraulic fan drive system with oil flow system. A modular valve mechanism is provided with coaxial oil passages to circulating lubrication oil through the clutch and to and from a heat exchanger.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 18, 2014
    Assignee: BorgWarner Inc.
    Inventor: Joshua L. Roby, Jr.
  • Publication number: 20140069764
    Abstract: An axle assembly comprises a power transmission device including a housing having a cylindrically shaped sidewall. The power transmission device selectively communicates rotatable motion from an input member to an output member. A frictional clutch is disposed in the housing and includes a drum. A first and a second axle shaft selectively drive a first and a second drive wheel, respectively. A differential selectively transfers drive torque from the output member to at least one of the first and second axle shafts. An electric motor comprising a coil and a plurality of magnets is provided on the axle assembly. In one example, the coil is disposed on the housing and the magnets are disposed on the drum. The coil is configured to selectively energize to provide one of a positive or negative torque input to the output member.
    Type: Application
    Filed: November 19, 2013
    Publication date: March 13, 2014
    Applicant: American Axle & Manufacturing, Inc.
    Inventor: Charles G. Stuart
  • Patent number: 8657088
    Abstract: Disclosed is a lock-up clutch operative to uniform temperatures on a multiple number of friction surfaces, thereby improving accuracy of a lock-up control and to prevent shudders of a vehicle from being generated. The lock-up clutch includes a front cover, a lock-up piston, a plurality of torque transmitting plates, and a plurality of friction materials formed on the torque transmitting plates and having three or more friction surfaces. The friction materials are constituted by a first friction material frictionally contactable with the front cover, a second friction material frictionally contactable with the lock-up piston, and third friction materials frictionally contactable with at least one of the plates. Three or more friction surfaces are constituted by outside friction surfaces formed on the first and second friction materials and each having a small area, and inside friction surfaces formed on the third friction materials and each having a large area.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: February 25, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshiya Yamashita
  • Patent number: 8640846
    Abstract: A wet clutch includes a rotatable hub and a rotatable drum having an aperture extending therethrough. A plurality of outer clutch plates are fixed for rotation with the drum. A plurality of inner clutch plates are fixed for rotation with the hub and interleaved with the outer clutch plates. A piston is moveable to apply a force to the inner and outer clutch plates to transfer torque between the hub and the drum. A cover is moveable relative to the drum between first and second positions. The cover selectively restricts a flow of fluid through the aperture in the drum when in the first position.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: February 4, 2014
    Assignee: Magna Powertrain Inc.
    Inventors: Richard D. Muizelaar, Sean Steele, Jianwen Li, Andrew Kowalski
  • Patent number: 8636126
    Abstract: A hydraulic clutch for preventing a drag of a clutch at the time of disengaging the clutch by decreasing an oil supply quantity between a plurality of clutch plates and a plurality of clutch discs thus decreasing a change hitting sound at the time of shifting. A hydraulic clutch is configured such that the superposition between an oil supply hole formed in a clutch pressure plate and an oil supply hole formed in a clutch center becomes maximum when the clutch is engaged.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: January 28, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuyuki Fukaya, Kosaku Takahashi, Junya Watanabe, Dai Arai, Masataka Tanaka