With Fluid Drive Patents (Class 74/730.1)
  • Patent number: 9482329
    Abstract: A torque transmission device for a powertrain system includes a continuously variable unit (CVU) of a continuously variable transmission (CVT) arranged in parallel with a fixed-gear-ratio transmission. The fixed-gear-ratio transmission includes first and second planetary gear sets and a plurality of transmission clutches, wherein the first and second planetary gear sets are arranged to transfer torque between an input member and an output member in one of first and second fixed-gear-ratio modes by selectively activating the transmission clutches. The torque transmission device operates in a first fixed overdrive input/output speed ratio when the CVU input clutch is deactivated and a first set of two of the transmission clutches is activated. The torque transmission device operates in a second fixed overdrive input/output speed ratio when the CVU input clutch is deactivated and a second set of two of the transmission clutches is activated.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: November 1, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Chi-Kuan Kao, Chunhao J. Lee, Kumaraswamy V. Hebbale, Farzad Samie
  • Patent number: 9469332
    Abstract: In a coupling structure for coupling a shaft to a universal joint yoke, an insertion portion of a shaft is passed through an insertion hole of a universal joint yoke. An outward protrusion of a distal end portion of the shaft faces a peripheral edge of a first opening of the insertion hole across a gap in an axial direction. A fixed portion that adjoins the insertion portion is fixed to a peripheral edge of a second opening of the insertion hole by welding. An engaging portion formed on an outer periphery of the insertion portion and an engaged portion formed in an inner periphery of the universal joint yoke, which defines the insertion hole, are engageable with each other in a rotational direction with a rotation permitting gap for phase adjustment.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: October 18, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Atsuhiro Yoshida, Naoji Kawasoko, Osamu Honda, Nobuaki Shibata
  • Patent number: 9347537
    Abstract: A multi-mode continuously variable transmission (CVT) for a motor vehicle includes a transmission input member, a transmission output member, a planetary gear set, a forward clutch, a brake, and a continuously variable unit having a first pulley, a second pulley, and an endless member wrapped around the first pulley and the second pulley. A first transfer gear set is connected to the transmission output member. A second transfer gear set is connected to the transmission output member. A dual clutch assembly is provided having a first clutch and a second clutch, wherein the first clutch selectively connects the second pulley to the first transfer gear set and the second clutch selectively connects the second pulley to the second transfer gear set. The dual clutch assembly provides two modes or ranges of continuously variable speed ratios between the transmission input member and the transmission output member.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: May 24, 2016
    Assignee: GM Global Technology Operations, LLC
    Inventors: Dan Coffey, Tejinder Singh
  • Patent number: 9290093
    Abstract: A vehicle attachment and control system for a vehicle attachment are described. The attachment includes a chassis configured to be attached to a vehicle with an onboard power source. The attachment includes an attachment power source supported by the chassis and an energy storage device supported by the chassis and configured to receive power from the attachment power source. The attachment includes a control system configured to transmit a signal to, and receive a signal from, the attachment power source and/or the energy storage device. The control system, the attachment power source, and the energy storage device are configured to provide power from the attachment power source and the energy storage device, via power transfer connections between the vehicle, or an associated implement, and the attachment power source or the energy storage device.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: March 22, 2016
    Assignee: Deere & Company
    Inventors: Christopher D. Turner, Gary S. Keys, II
  • Patent number: 9291243
    Abstract: A motor vehicle powershift transmission which comprising two partial transmissions (TG1, TG2) each with a respective input shaft (GE1, GE2) that can be drivingly connected, via a main separator clutch (CL1, CL2; CL1?, CL2?; CL1*, CL2*), with the driveshaft (TW) of a drive engine (VM) and, on the output side, with a common output shaft (GA). To enable powershifts without frictional slipping, the two input shafts (GE1, GE2), on the input side, can be connected to and disconnected from a respective intermediate shaft (ZW1, ZW2) by the respective main separator clutch (CL1, CL2; CL1?, CL2?; CL1*, CL2*). The first intermediate shaft (ZW1) is directly connected to the driveshaft (TW) and the second intermediate shaft (ZW2) is in driving connection with the first intermediate shaft (ZW1) by way of a variator (V) which has a continuously adjustable transmission ratio (iV) and a rest transmission ratio having the value one iV—0=1).
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: March 22, 2016
    Assignee: ZF Friedrichshafen AG
    Inventors: Kai Borntraeger, Bernard Hunold, Johannes Kaltenbach
  • Patent number: 9279489
    Abstract: A vehicle transmission comprising a multi-ratio gearbox having a gearbox input shaft and a gearbox output shaft, the gearbox being operable to provide a driving connection between the gearbox input shaft and the gearbox output shaft at a selected one of a plurality of gear ratios, a torque converter having a torque converter input for connection to an engine, and a torque converter output driveably connected to the torque converter input by fluid coupling within the torque converter, a first driving connection between the torque converter output and the gearbox input shaft, a second driving connection between the torque converter input and the gearbox input shaft, and a selection means to select one of the first driving connection and the second driving connection.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: March 8, 2016
    Assignee: JCB Transmissions
    Inventors: David John Hoyle, Simon James Peter Evans
  • Patent number: 9057428
    Abstract: A center distance D1 from a motor shaft connected to an electric motor and a generator shaft connected to a generator to a clutch shaft including a wet multiple disc clutch is set longer than a distance Dm from the axial center of the electric motor, that is, the axial center of the motor shaft to the outermost circumference of a housing, which houses the electric motor.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: June 16, 2015
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventor: Sumio Motoyama
  • Patent number: 9009941
    Abstract: It is intended to make it possible to, even in a situation where a program and/or data to be written to a memory device of an electronic control unit provided in an automatic transmission become different in content, depending on a specification of a vehicle to be mounted with the automatic transmission, manage the electronic control unit while distinguishing only by a difference in hardware configurations thereof.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: April 21, 2015
    Assignee: Mazda Motor Corporation
    Inventors: Akihiro Mitani, Keiichiro Sueshige, Tsuyoshi Kiyooka
  • Patent number: 9003926
    Abstract: An oil passage structure of a chain-driven oil pump includes three lines of oil passages for supplying oil from the center support to the torque converter, a first oil passage for supplying oil to the torque converter through the inside of an input shaft of the torque converter, a second oil passage for supplying oil to the torque converter through a space defined by the outer periphery surface of the input shaft and the inner periphery surface of a stator shaft, and a third oil passage for supplying oil to the torque converter by bypassing the drive sprocket. The third oil passage is provided on the outer periphery side of the drive sprocket and in a position where it does not interfere with the operation of a chain. Accordingly, it is possible to utilize the flex lock-up to a maximum extent, and to reduce the diameter of the sprocket.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: April 14, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihiro Mizuno, Koichi Tanaka, Yusuke Ogata
  • Patent number: 9003902
    Abstract: A drive apparatus driven by a prime mover and having a variable speed transmission disposed within a housing is disclosed. A power take off is driven by an output shaft of the prime mover and selectively drives a power take off output shaft. The variable speed transmission drives a transmission output shaft, which in turn drives a first clutch mechanism and a second clutch mechanism. A first drive axle is engaged to and selectively driven by the first clutch mechanism and a second drive axle is engaged to and selectively driven by the second clutch mechanism.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: April 14, 2015
    Assignee: Hydro-Gear Limited Partnership
    Inventor: Michael L. Bennett
  • Patent number: 8968136
    Abstract: A dual clutch transmission (500) having a plurality of forward gears and at least one reverse gear (582) where the first gear is operatively engaged by a one-way clutch (594). A pair of actuator control valves (270, 272) is employed to move actuators to engage selective ones of the forward gear sets. A multiplex valve (284) is disposed in fluid communication between the pair of actuator control valves (270, 272) and the actuators associated with the forward gears of the transmission and is adapted to selectively provide fluid communication to the actuators to thereby select the forward gear ratios. A manual valve (185) is operatively connected to the gear shift selector (187) to control the actuator associated with reverse gear (582).
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: March 3, 2015
    Assignee: BorgWarner Inc.
    Inventors: Melissa Koenig, Mark Buchanan
  • Patent number: 8935971
    Abstract: An automatic transmission for a vehicle includes a hydraulically-controlled component and a pilot valve. The pilot valve includes at least one micro-electrical-mechanical systems (MEMS) based device. The pilot valve is operably connected to and is configured for actuating the hydraulically-controlled component. The pilot valve additionally includes a regulating valve operably connected to the pilot valve and to the hydraulically-controlled component. The regulating valve is configured to direct fluid to the hydraulically-controlled component when actuated by the pilot valve.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: January 20, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Farzad Samie, Andrew L. Bartos, Chunhao J. Lee, Chi-Kuan Kao, Kumaraswamy V. Hebbale, Dongxu Li, Kevin B. Rober
  • Patent number: 8936141
    Abstract: A continuously variable transmission (CVT) for a vehicle includes a hydraulically-controlled component and a pilot valve. The pilot valve includes at least one micro-electrical-mechanical-systems (MEMS) based device. The pilot valve is operably connected to and is configured for actuating the hydraulically-controlled component. The pilot valve additionally includes a regulating valve operably connected to the pilot valve and to the hydraulically-controlled component. The regulating valve is configured to direct fluid to the hydraulically-controlled component when actuated by the pilot valve.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: January 20, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Farzad Samie, Chi-Kuan Kao, Kumaraswamy V. Hebbale, Chunhao J. Lee, Dongxu Li, Andrew L. Bartos, Kevin B. Rober
  • Patent number: 8925421
    Abstract: A gear assembly includes first and second shafts concentric with one another. First and second gears are respectively provided by the first and second shafts and are arranged adjacent to one another. A biasing assembly cooperates with at least one of the first and second shafts to maintain a desired gap between the first and second gears.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: January 6, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Henry R. Vanderzyden, Jonathan C. Dell
  • Publication number: 20150000463
    Abstract: A transmission comprising a plurality of concentric tori, each tori having means for engaging with an adjacent tori, the engaging means being actuated by the pressure of a pressurised fluid to thereby increase or decrease a gearing of gears attached to the transmission. A method of gearing is also provided.
    Type: Application
    Filed: October 15, 2012
    Publication date: January 1, 2015
    Inventor: Khalil Abu Al Rubb
  • Patent number: 8919224
    Abstract: A transmission having an integrated gear and brake mechanism is disposed in a housing, the transmission having a variable drive mechanism, gear train, and an output axle engaged to the gear train. The output axle is driven by a final drive gear having an integrated drum brake within its circumference.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: December 30, 2014
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Michael L. Bennett, Nathan W. Bonny
  • Patent number: 8869653
    Abstract: Provided is a drive apparatus of a hybrid vehicle, configured in such a manner that the occurrence of a resonance phenomenon is minimized and that the efficiency of utilization of the space occupied by a torque limiter mechanism is improved. A drive apparatus for a hybrid vehicle is configured in such a manner that a torque limiter is provided in the path of power transmission between an inner shaft and a generator at a position between the generator and a motor. The torque limiter axially overlaps with at least a part of the stator of the generator and/or at least a part of the stator of the motor.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: October 28, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasuhiro Fujita, Toru Takahashi, Tatsuya Noda
  • Patent number: 8839694
    Abstract: A work vehicle including an engine and a transmission. The transmission is driven by the engine. The transmission includes an input clutch, an output clutch, and a hydraulic pump/motor. The hydraulic pump/motor is operatively connected between the input clutch and the output clutch.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: September 23, 2014
    Assignee: Deere & Company
    Inventors: George W. Detrick, Briton T. Eastman, Craig R. Eike, Richard M. Sparks
  • Patent number: 8800406
    Abstract: In a transmission series different versions of lubricant supply pumps have a uniformly designed and dimensioned coupling pin between lubricant supply pump and transmission drive shaft or take-off shaft. In addition different versions of lubricant supply pumps have a uniformly designed and dimensioned mechanical interface on their drive shaft-side housing end face side. This mechanical interface includes a centering shoulder radially surrounding the coupling pin and a circle of holes concentric to the centering shoulder provided with threaded holes for attachment screws on the drive shaft-side end face side of the lubricant supply pump.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: August 12, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Steubler
  • Patent number: 8794108
    Abstract: A fluid accumulator assembly used with 2002 to 2005 model years of ZF Getriebe's GmbH ZF-6HP19, ZF-6HP26, ZF-6HP32 automatic transmissions, and model years up to 2011 of Ford's 6R60 automatic transmissions. The fluid accumulator assembly includes a piston that can be received into a bore that is in fluid communication with a solenoid-controlled fluid circuit of the transmission. The fluid accumulator assembly also includes a compression spring sized and configured to fit within the piston, and used to provide an urging force to the piston.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: August 5, 2014
    Assignee: Sonnax Industries, Inc.
    Inventors: Robert C. Warnke, MacKenzie M. Campbell
  • Patent number: 8739905
    Abstract: A drive apparatus driven by a prime mover that has a prime mover output shaft is disclosed. The drive apparatus has a housing and a power take off. The power take off is driven by the prime mover output shaft and selectively drives a power take off output shaft. The drive apparatus further has a variable speed transmission disposed within the housing. The variable speed transmission drives a transmission output shaft, which in turn drives a first clutch mechanism and a second clutch mechanism. A first drive axle is engaged to and selectively driven by the first clutch mechanism and a second drive axle is engaged to and selectively driven by the second clutch mechanism.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: June 3, 2014
    Assignee: Hydro-Gear Limited Partnership
    Inventor: Michael L. Bennett
  • Publication number: 20140144289
    Abstract: A hydraulic shaft coupling apparatus transfers power from a rotating drive shaft to a driven load shaft, where the apparatus has a self-contained internal fluid flow path having a fluid control valve that controls the flow of hydraulic fluid through the flow path to allow fluid flow when there is a substantial difference between drive shaft and driven shaft rotational speeds, and to gradually restrict the fluid flow as the difference between drive shaft and driven shaft speeds decrease to the point where fluid flow through the fluid passage is substantially stopped by the control valve resulting in the one-to-one transfer of rotational power from the drive shaft to the driven shaft.
    Type: Application
    Filed: September 23, 2011
    Publication date: May 29, 2014
    Applicant: Taylor Cable Productions, Inc.
    Inventor: Jeffrey D. Percival
  • Patent number: 8733210
    Abstract: There is provided, in one aspect of the present description, an automatic transmission. In one example, the automatic transmission comprises a transmission case, a valve body which is arranged in the transmission case, a control valve mechanism which controls oil pressures in parts of the automatic transmission and is installed in the valve body, and a solenoid valve which is attached to the valve body and is arranged at a first side of the valve body and in the transmission case. The automatic transmission further comprises an electronic control unit which controls the solenoid valve, is attached to the valve body, and is arranged at a second side of the valve body that is opposite to the first side across the valve body.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: May 27, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Keiichiro Sueshige, Akihiro Mitani, Tatsutoshi Mizobe, Shotaro Nagai, Takenori Kawano, Takahiro Kimura
  • Publication number: 20140007741
    Abstract: A gear assembly includes first and second shafts concentric with one another. First and second gears are respectively provided by the first and second shafts and are arranged adjacent to one another. A biasing assembly cooperates with at least one of the first and second shafts to maintain a desired gap between the first and second gears.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 9, 2014
    Inventors: Henry R. Vanderzyden, Jonathan C. Dell
  • Patent number: 8620544
    Abstract: A transmission includes a plurality of clutches that are selectively engageable alone or in combination with each other to establish a plurality of forward drive modes, wherein one of the clutches is configured as a neutral idle (NI) clutch that is selectively actuated to shift the transmission into an NI state, and a controller. The controller is adapted to shift the transmission from a forward drive mode into the NI state during a coast-down maneuver prior to the transmission reaching a zero output speed. A method of shifting the transmission into the NI state includes determining the presence of a predetermined one of the forward drive modes using the controller, and using the controller to actuate a designated one of the clutches as an NI clutch to enter the NI state during the forward drive mode, during a coast-down maneuver, and prior to the transmission reaching a zero output speed.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: December 31, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Ronald F. Lochocki, Jr., Sindu Sebastian, David W. Wright
  • Publication number: 20130319175
    Abstract: Transmission group for vehicles comprising an engine provided with at least one engaging device, arranged between transmission gears and mobile between a first rest position, wherein the transmission gears are mutually integral and both in mesh with a transmission shaft, and a second working position wherein the first gear is in mesh with the transmission shaft and the second gear is unconstrained both with respect to the transmission shaft and with respect to the gear, provided for being means for actuating of the engage device, wherein the engine, the output gear and an output shaft are integrated in a first module fixed to the vehicle and that the transmission shaft, the transmission gears, the engage device and the actuating means thereof are integrated in a second module independent and demountable with respect to the first module.
    Type: Application
    Filed: November 23, 2011
    Publication date: December 5, 2013
    Applicant: Dana Italia S.P.A.
    Inventors: Marco Pontanari, Pietro Casarola
  • Patent number: 8505413
    Abstract: A hydraulic power output unit can be used in a hydraulic hybrid drive system for propelling a vehicle. The hydraulic power output unit includes a housing having an input shaft that extends within the housing and is adapted to be rotatably driven by a source of rotational power. A hydraulic pump is rotatably driven by the input driveshaft to pump hydraulic fluid. A vibration damper is provided within the housing for dampening vibrations in the input shaft.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: August 13, 2013
    Assignee: Parker-Hannifin Corporation
    Inventors: John M. Loeffler, James H. Blalock
  • Publication number: 20130180358
    Abstract: A hydraulic system of an electric vehicle may comprise: an oil container; a first and a second clutch driving circuits connected in parallel; an internal pump driven by a driving system of the electric vehicle; a first check valve connected in series at an outlet side of the internal pump; an external pump driven by an external pump motor; and a second check valve connected in series at an outlet side of the external pump. The first check valve and the internal pump connected in series and the second check valve and the external pump connected in series are connected in parallel between the oil container and the first and second clutch driving circuits.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 18, 2013
    Applicants: BYD COMPANY LIMITED, Shenzhen BYD Auto R&D Company Limited
    Inventors: Shenzhen BYD Auto R&D Limited, BYD COMPANY LIMITED
  • Publication number: 20130139646
    Abstract: A transmission includes a housing, an input member connectable to an engine output member, a sleeve member, and a launch clutch assembly connected to the input member and to the sleeve member, wherein the launch clutch is selectively engageable to transmit torque from the input member to the sleeve member. A first countershaft is rotatably supported within the transmission housing. A second countershaft is rotatably supported within the transmission housing. A plurality of co-planar gear sets are connected to the input member, sleeve member, and the countershafts. A plurality of torque transmitting mechanisms are provided for coupling various components of the co-planar gear sets to the input member, sleeve member, and countershafts. The selective engagement of the launch clutch assembly and the torque transmitting mechanisms establishes at least one of five forward speed ratios and a reverse speed ratio.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 6, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Bret M. Olson, Edward W. Mellet
  • Patent number: 8382625
    Abstract: A device (2) for a vehicle drivetrain (1) with a transmission unit (3) for changing various transmission ratios and with a hydraulic device (4). The device (2) can provide a drive torque in the area of the drive output (5) of the vehicle drivetrain (1) and in whose area a drive output torque of the vehicle drivetrain (1) can be at least partially supported. A reversing gear system (6) is connected, upstream of the transmission unit (3), for reversing the rotation direction and the hydraulic device (4) can be brought into active connection with the transmission unit (3) by way of the reversing gear system (6).
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: February 26, 2013
    Assignee: ZF Friedrichshafen AG
    Inventor: Jurgen Legner
  • Patent number: 8380411
    Abstract: A clutch control device for vehicle equipped with a clutch actuator driven by a working fluid, wherein secular change in the flow rate control valve for controlling the working fluid is compensated, and the rate of connection of the clutch is correctly controlled by a simple means. To control the stroke of a clutch actuator 110, the clutch control device is provided with a single flow rate control valve 1 that controls the feed and discharge of the working fluid by using an electromagnetic solenoid. A flow rate control valve control device 9 is provided with a learning device 91 that learns the neutral position of the flow rate control valve 1 which shuts off the flow of the working fluid, separately detects the amounts of electric current to a coil 8 of when the rate of change in the stroke becomes zero depending upon the directions in which the valve body of the flow control valve 1 moves, and learns the central point at the neutral position by averaging the detected values.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: February 19, 2013
    Assignee: Isuzu Motors Limited
    Inventors: Yoshihiro Takei, Yasushi Yamamoto, Hiroyuki Kawanishi
  • Patent number: 8353804
    Abstract: A hybrid transmission for a vehicle and its method of use are described. The transmission may have an internal combustion engine and an electric device. A torque converter is connected between the internal combustion engine and a set of direction clutches. The direction clutches are also connected to an intermediate gear set. The electric device is also connected to the intermediate gear set for providing rotational energy to the intermediate gear set or absorbing energy from the intermediate gear set. The electric device is connected to at least one super capacitor.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: January 15, 2013
    Assignee: Spicer Off-Highway Belguim N.V.
    Inventors: Mark R. J. Versteyhe, Veerle M. J. Van Doorsselaere
  • Patent number: 8333131
    Abstract: A device (2) for a vehicle drivetrain (1) with a transmission unit (3) for changing various transmission ratios. The device (2) comprising a reversing gear system (4) arranged on an input side of the transmission for reversing the rotational direction. A hydrodynamic torque converter device (5) located upstream of the reversing gear system (4). A hydraulic device (6) which, in the power flow direction is located between the reversing gear system (4) and the transmission unit (3) and can be brought into active connection with them for producing a torque that can be applied in the area between the reversing gear system (4) and the transmission unit (3).
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: December 18, 2012
    Assignee: ZF Friedrichshafen AG
    Inventor: Jurgen Legner
  • Publication number: 20120308387
    Abstract: A distributed hybrid drive train for a wind turbine is disclosed. The drive train may include a first stage chain drive adapted to receive mechanical energy from a main shaft of a wind turbine and a second stage gearbox adapted to receive rotational mechanical energy from the first stage chain drive and transmitting the rotational mechanical energy to one or more generators of the wind turbine.
    Type: Application
    Filed: October 24, 2011
    Publication date: December 6, 2012
    Applicant: Clipper Windpower, LLC
    Inventors: Richard A. Himmelmann, Zbigniew Piech, Richard N. Fargo
  • Patent number: 8322252
    Abstract: A transmission is provided for a mobile machine. The transmission may have a plurality of available gear combinations selectively engaged to produce multiple stepped output ratios. The transmission may also have a first fluid pump and a second fluid pump. The first fluid pump may be configured to pressurize a first flow of fluid. The second fluid pump may have variable displacement to pressurize a second flow of fluid. At least one of the first and second flows of fluid may be directed to cause selective engagement of the plurality of available gear combinations.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: December 4, 2012
    Assignee: Caterpillar Inc.
    Inventors: Michael G. Cronin, Robert E. Black
  • Patent number: 8312793
    Abstract: A first hydraulic circuit leads, as clutch control pressure, pressurized oil supplied from a first hydraulic pump, to a transmission control device after regulating the pressurized oil, and leads, as torque converter operation oil, pressured oil to a torque converter, and leads pressurized oil to an oil cooler. Through a second hydraulic circuit, pressurized oil from a second hydraulic pump is distributed to a circuit portion downstream of the pressure regulation valve and upstream of a safety valve and to a circuit portion downstream of the torque converter and upstream of the oil cooler. A flow control device changes a proportion of a rate of flow in the second hydraulic circuit so that a proportion of the rate of flow to the circuit portion downstream of the torque converter and upstream of the oil cooler increases as pressure at an entrance of the torque converter increases.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: November 20, 2012
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hiroyuki Azuma, Atsushi Shimazu, Masaki Yoshikawa, Kosei Suzuki
  • Publication number: 20120270690
    Abstract: A hydrostatically power-splitting transmission (10), particularly for agricultural and construction equipment, comprises at least two hydrostats (H2), which are hydraulically connected to each other and operate as pumps or as motors, wherein at least one of the hydrostats (H2) can be adjusted or pivoted by means of a controller (16, 20, 21; SK1, . . . SK4), mechanical coupling means (K1, K2; Z1, . . . , Z12), which couple the hydrostats (H1, H2) to an inner drive shaft (W1) and an inner driven shaft (W7), a housing (14, 31) comprising a cover (14) and a housing bottom part (31), wherein the hydrostats (H1, H2), the inner drive and driven shafts (W1, W7), and the mechanical coupling means (Z7, Z9) are disposed and attached on the bottom of the cover (14), and in the lower housing part an outer drive shaft accessible from the outside and a driven shaft are supported, which are operatively connected to the inner drive shaft or driven shaft when the housing is assembled.
    Type: Application
    Filed: January 21, 2009
    Publication date: October 25, 2012
    Applicant: MALI Holding AG
    Inventors: Josef Häglsperger, Peter Dziuba, Markus Liebherr, Katharina Liebherr, Josef Bauer
  • Publication number: 20120240724
    Abstract: A hydromechanical transmission has a hydraulic pump-driven hydraulic motor of a hydrostatic continuously variable transmission and a mechanical multi-step variable speed transmission connected to a drive shaft of the hydraulic motor, which can be shifted into operation by a gear shifting device. In order to adapt the hydromechanical transmission with as compact as possible a design to diverse installation cases with little effort, the gear shifting device is arranged directly adjacent to the hydraulic motor and is consolidated with the latter into a preassembled constructional unit.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 27, 2012
    Applicant: LINDE MATERIAL HANDLING GMBH
    Inventors: Bernward Welschof, Ulrich Schwarz
  • Patent number: 8265844
    Abstract: A clutch control device for vehicle is equipped with a clutch actuator driven by a working fluid, and works to correctly control the rate of connection of the clutch by a simple means compensating secular change of a flow rate control valve that controls the working fluid. The clutch control device has a single flow rate control valve 1 for controlling the feed and discharge of the working fluid to change the stroke of the clutch actuator 110. The flow rate control valve 1 has a neutral position at where feed and discharge of the working fluid is stopped. A flow rate control valve control device 9 is provided with a learning device 91 for learning the neutral position. To control the stroke, the flow rate control valve control device 9 corrects the amount of electric current to a coil 8 of an electromagnetic solenoid based on a value learned by the learning device 91 and compensates a change in the flow rate characteristics caused by secular change.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: September 11, 2012
    Assignee: Isuzu Motors Limited
    Inventors: Yoshihiro Takei, Yasushi Yamamoto, Hiroyuki Kawanishi
  • Patent number: 8210071
    Abstract: A fluid drive system for vertical mixer tubs is provided. Rotational power from the power take-off of a tractor or other suitable vehicle is increased in rotational speed by an input gearbox. The input gearbox is, in turn, coupled to a fluid coupler that locks up when the input rotational speed reaches an optimum speed. The output of the fluid coupler is coupled to an output gearbox that reduces the rotational speed of the fluid coupler. The output of the output gearbox is connected to the drive mechanism of the mixer tub auger.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: July 3, 2012
    Assignee: Supreme International Limited
    Inventor: Jack Hendriks
  • Publication number: 20120152056
    Abstract: A system for providing hydraulic power in a machine transmission includes a first hydraulic variator and a second hydraulic variator, each variator having a mechanical input to a hydraulic pump, and a hydraulic motor linked to the hydraulic pump via a hydraulic circuit, and a mechanical output from the hydraulic motor. In an embodiment, the first hydraulic circuit side of one variator is hydraulically connected to the first hydraulic side of the other variator, and the second hydraulic circuit sides are likewise linked together. A common input is geared to the inputs of the variators and a common output is geared to the outputs of the variators, tying the pump and motor of each variator to rotate at the same speed as the counterpart components of the other variator.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Applicant: CATERPILLAR INC.
    Inventors: Hongliu Du, Tony L. Marcott
  • Publication number: 20120125150
    Abstract: A gearbox includes an input shaft connected to a rotor hub, an output shaft connected to a generator, and a first gear wheel rotation-locked to the input shaft and arranged inside a gearbox housing. A second gear wheel arranged inside the gearbox housing and meshing with the first gear wheel or coupled thereto via one or more additional gear wheels is rotation-locked to the output shaft. A flange radially surrounds the input shaft and/or the output shaft and has a circumferential groove on a side facing the input shaft and/or output shaft. An annular tubular sealing element made from an elastic material is fixed in the circumferential groove and can be expanded by an increase in the internal pressure. An intermediate space between the input shaft and/or output shaft and the circumferential groove is thus completely sealed by the sealing element when expanded.
    Type: Application
    Filed: May 20, 2011
    Publication date: May 24, 2012
    Applicant: Winergy AG
    Inventor: Ralf Martin Dinter
  • Publication number: 20120115662
    Abstract: A system and method for providing a constant output from a variable flow input comprises a liquid flow energy input, for example, air or water for driving a constant speed generator. An inner and outer cam assembly is controlled by a control input to achieve varying eccentricity and control the output speed at an output shaft to be constant despite a varying rotational velocity input at an input shaft. A feedback control may be provided between one of the input shaft and the output shaft and the inner and outer cam assembly to maintain constant output by varying the eccentricity. The constant output may drive a constant speed generator having an infinitely variable torque generator. In this manner, a power grid may be provided with constant frequency alternating current at, for example, 50 Hz (Europe) or 60 Hz (USA).
    Type: Application
    Filed: July 20, 2010
    Publication date: May 10, 2012
    Applicant: DIFFERENTIAL DYNAMICS CORPORATION
    Inventor: Kyung Soo Han
  • Patent number: 8113089
    Abstract: An engine starting apparatus is provided that has a constantly engaged starter pinion and a one-way clutch lubricated with transmission fluid, without modification to the engine and without adding axial length to the transmission. Specifically, a starting apparatus for cranking an engine crankshaft using a starter motor is provided for an engine that is operatively connected to a transmission through a torque converter.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: February 14, 2012
    Assignee: GM Global Technology Operations LLC
    Inventor: Joel M. Maguire
  • Publication number: 20120006155
    Abstract: The invention relates to a manual transmission having an input shaft (12), one first and one second mechanical gear branch (26, 28) that may be coupled in a driving fashion on the input side with the input shaft and on the output side via various gears (G1, . . . , G7,R) with a common output shaft (40), and one first and one second hydrostatic machine (18, 18?, 20, 20?), each comprising a primary part (16), a secondary part (22, 24), and one first and one second pressure chamber. The primary part and the secondary part of each hydrostatic machine (18, 18?, 20, 20?) are rotatable relative to one another, wherein the secondary part (22) of the first hydrostatic machine (18, 18?) is operatively connected to the first mechanical gear branch (26) and the secondary part (24) of the second hydrostatic machine (20, 20?) is operatively connected to the second mechanical gear branch (28).
    Type: Application
    Filed: July 9, 2008
    Publication date: January 12, 2012
    Applicant: Magna Powertrain AG & Co KG
    Inventor: Wolfram Hasewend
  • Patent number: 8095283
    Abstract: A transmission control apparatus detects a drop in power transmission performance of a clutch actuator, and prevents a failure thereof. When power transmission performance drop detecting means detects a drop in power transmission performance of a first clutch even if a power transmission instruction is given to a first clutch actuator, power transmission in a power transmission path through a first geared transmission mechanism is inhibited, and power transmission in a power transmission path through a second geared transmission mechanism is carried out. When the power transmission performance drop detecting means detects a drop in power transmission performance of a second clutch even if the power transmission instruction is given to a second clutch actuator, power transmission in the power transmission path through the second geared transmission mechanism is inhibited, and power transmission in the power transmission path through the first geared transmission mechanism is carried out.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: January 10, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Nozomu Kamioka, Shiro Yonezawa, Takeru Okabe, Tomohisa Shoda, Masaki Horii, Yasufumi Ogawa, Osamu Ishikawa
  • Publication number: 20110179891
    Abstract: An automatic transmission (1) presents a hydrodynamic converter (3). Consequently, the automatic transmission (1) has a drive region (2) and a driven region (4). The power is split into at least two power branches in the drive region (2). A power branch runs across the hydrodynamic converter (3), another runs parallel thereto. Said at least two power branches are united in the driven region (4). According to the invention, one electrical machine (5) is additionally coupled with the driven region (4).
    Type: Application
    Filed: August 1, 2008
    Publication date: July 28, 2011
    Inventor: Busch Jorg
  • Publication number: 20110138963
    Abstract: A sealing device is provided. The sealing device is for sealing a space formed by an inner shaft and an outer shaft and for directing a flow of fluid, the inner shaft and the outer shaft being rotatable about a common coaxial axis. The sealing device includes an inner seal element adapted for being coupled to the inner shaft so that the inner seal element is locked against rotation relative to the inner shaft, the inner seal element including a first inner sealing surface. The sealing device further includes an outer seal element adapted for being coupled to the outer shaft so that the outer seal element is locked against rotation relative to the outer shaft, the outer seal element including a first outer sealing surface.
    Type: Application
    Filed: June 29, 2010
    Publication date: June 16, 2011
    Inventor: Klaus PISCHEL
  • Publication number: 20110132141
    Abstract: An oil passage structure of a chain-driven oil pump includes three lines of oil passages for supplying oil from the center support to the torque converter, a first oil passage for supplying oil to the torque converter through the inside of an input shaft of the torque converter, a second oil passage for supplying oil to the torque converter through a space defined by the outer periphery surface of the input shaft and the inner periphery surface of a stator shaft, and a third oil passage for supplying oil to the torque converter by bypassing the drive sprocket. The third oil passage is provided on the outer periphery side of the drive sprocket and in a position where it does not interfere with the operation of a chain. Accordingly, it is possible to utilize the flex lock-up to a maximum extent, and to reduce the diameter of the sprocket.
    Type: Application
    Filed: April 28, 2009
    Publication date: June 9, 2011
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihiro Mizuno, Koichi Tanaka, Yusuke Ogata
  • Patent number: 7926387
    Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: April 19, 2011
    Assignee: Kubota Corporation
    Inventors: Yoshifumi Horiuchi, Yasunobu Nakatani, Hiroki Bessho, Norimi Nakamura