With Temperature Control, Lubrication Or Sealing Patents (Class 180/339)
  • Patent number: 11801727
    Abstract: One example provides a thermal management system for an electric vehicle including a pump to pump a thermal transfer fluid through a number of circulation loops, an electric heater to heat the thermal transfer fluid, a heat exchanger to expel heat from the thermal transfer fluid, a number of valves, and a number of fluid pathways fluidically interconnecting the pump, heater, heat exchanger and valves. The valves being controllable to a number of different positions to form the number of circulation loops, the number of circulation loops including a battery heating circulation loop extending through the heater for heating a battery pack of the vehicle, a secondary components cooling circulation loop extending through the heat exchanger to cool secondary components of the vehicle, including a motor and a motor controller, and a battery cooling circulation loop extending through the heat exchanger to cool the battery pack.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: October 31, 2023
    Assignee: Taiga Motors Inc.
    Inventors: Samuel Bruneau, Paul Achard, Marc-Olivier Gagnon
  • Patent number: 11772419
    Abstract: A wheel end assembly includes a hub connectable with a wheel and having a bore for receiving a shaft. An inboard bearing within the bore includes an outer ring coupled with hub, an inner ring within the outer ring and rolling elements. A seal assembly is coupled with the inner ring and retains the inner ring within the outer ring when the end assembly is separate from the shaft. An outboard bearing within the hub bore includes an outer ring coupled with the hub, an inner ring within the outer ring and rolling elements. A nut assembly is disposed adjacent to the outboard bearing and includes a nut threadably engaging the shaft. A retainer retains the nut assembly adjacent to the outboard bearing to limit axial displacement of the outboard inner ring to maintain the inner ring within the outer ring when the wheel end is separate from the shaft.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 3, 2023
    Assignee: AKTIEBOLAGET SKF
    Inventors: Ganesh Kamath, Cengiz R Shevket, Fabricio Teixeira
  • Patent number: 11506273
    Abstract: The present disclosure provides a cooling system including a decelerator and a cooling line provided in a gear housing to cool at least one of a gear and a lubricant. The cooling system is configured to control the temperature of the lubricant inside the decelerator by circulating a coolant through the cooling line. The decelerator includes a gear set including the gear and the lubricant for accommodating a backlash and a gear housing configured to surround the gear set for transmitting a torque output from an electric motor through the decelerator to a drive shaft and vehicle wheels.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 22, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Do Youn Jang
  • Patent number: 11486492
    Abstract: A shift device includes: a shift switching member that includes a plurality of valley portions corresponding to a shift position; and an actuator that drives the shift switching member. The actuator includes a motor, a driving force transmission mechanism that transmits a driving force of the motor to an output shaft, a control board that includes a rotation angle sensor detecting a rotation angle of the motor and controls the motor based on a detection result obtained by the rotation angle sensor, a housing and an outer lid that form a housing space housing the motor and the control board, the outer lid covering an opening of the housing, and an inner lid that is housed in the housing space and to which the motor is attached, and the housing includes a first positioning portion that positions both the inner lid and the control board with respect to the housing.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: November 1, 2022
    Assignee: AISIN CORPORATION
    Inventors: Kosuke Sakai, Takashi Mizuno
  • Patent number: 10760673
    Abstract: A planetary roller transmission includes: a fixed ring; a sun shaft; a plurality of planetary rollers; a carrier that has a plurality of support shafts that support the planetary rollers via bearing portions and that revolves together with the planetary rollers; and an annular flange ring provided on one side, in the axial direction, of the fixed ring and the planetary rollers. The inside diameter of the flange ring is smaller than the diameter of a circumscribed circle circumscribed by bearing portions which are arranged in the circumferential direction. An oil storage portion that receives oil that has climbed over the flange ring from the side of the planetary rollers is provided between a side surface of the flange ring and an inner wall surface of the housing. A passage that allows oil to permeate from the oil storage portion to the side of the planetary rollers is provided.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 1, 2020
    Assignee: JTEKT CORPORATION
    Inventors: Hajime Watanabe, Yuichi Matsumoto
  • Patent number: 10655727
    Abstract: A greaser for a transmission includes a shaft (1) having an axial bore (3) and a plurality of axially spaced radial bores (6a, 6b, 6c). Each of at least one tube (8a, 8b) is inserted into a respective one of the axially spaced radial bores (6a, 6b) and extends radially inwardly into the axial bore (3) beyond a circumferential surface (4) of the axial bore (3) that is adjacent the respective one of the axially spaced radial bores (6a, 6b). Each of the at least one tube (8a, 8b) includes a slot (11a, 11b) at a tube end (10a, 10b) facing a central axis (2) of the shaft (1). The slot (11a, 11b) of each of the at least one tube (8a, 8b) extends along a central axis (9a, 9b) of the respective tube (8a, 8b) into an interior space of the axial bore (3).
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: May 19, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Rainer Grundler, Markus Herrmann, Thilo Schmidt, Dietmar Gehring, Dirk Winkler
  • Patent number: 10525767
    Abstract: A wheel for vehicle 1 is provided with a disc 10 and a rim 20 and has a braking device 30 housed therein. An annular flange portion 41 protruded inward from a bead seat portion 22 in a radial direction of the wheel 1 is disposed at an end of the rim 20 on a side opposite to the disc 10. The flange portion 41 has an inclined surface 41a on a side opposite to the disc 10. The flange portion 41 is inclined toward the disc 10 in a direction toward a central axis L of the wheel 1. The inclined surface 41a acts to reduce air resistance at the wheel 1 while the vehicle is running and guides a portion of an underfloor airflow to an inner space of the wheel 1 to secure an amount of air for cooling the braking device 30.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: January 7, 2020
    Assignee: Topy Kogyo Kabushiki Kaisha
    Inventors: Masaki Kawai, Jiro Yazawa
  • Patent number: 10100800
    Abstract: A system for starting a vehicle in cold temperatures includes a temperature sensor and a motor operable to drive at least one electrically operated pump to pump fluid. The motor provides a motor signal indicative of an operating condition of the motor. Responsive to (i) a temperature sensed by the temperature sensor being below a threshold level and (ii) the motor signal being indicative of a stall condition of the motor, the system enters a fluid heating mode. When operating in the fluid heating mode, the system generates heat in the windings of the motor and transfers heat from the motor to the fluid being pumped by the pump.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: October 16, 2018
    Assignee: MAGNA ELECTRONICS INC.
    Inventors: Oscar Flores-Bamaca, Kenneth J. Baize
  • Patent number: 10047851
    Abstract: A lubricating apparatus for a differential device of vehicle may include a ring gear mounted in the inside of a housing mounted at an oil pan, the ring gear being provided such that at least a portion of a lower portion of the ring gear is submerged into oil to churn the oil by being rotated; and a gear casing including a partition wall which is provided to surround an outer peripheral surface of the ring gear and allows the oil to flow into between the partition wall itself and the ring gear and a restriction part which is located in a front of the ring gear and formed with a top end portion facing an upper portion of the housing to limit an amount of the oil flowing into between the partition wall and the ring gear.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 14, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corp.
    Inventors: Kyoung Wook Kim, Ki Hyup Kim, Tae Seok Seo, Seok Hyun Lee, Soon Ho Moon
  • Patent number: 10018265
    Abstract: A reservoir plate for dividing an inside of a transmission case into a differential chamber and a hydraulic oil storage chamber includes: a cylindrical portion covering a part of a differential gear; a flange portion radially extending from the cylindrical portion; and a differential ring surrounding portion extending from an outer circumferential edge of the flange portion so that a part of a differential ring gear is covered from above without interfering with a drive pinion gear. The cylindrical portion, the flange portion, and the differential ring surrounding portion are integrally formed with each other. A seal member is interposed between the transmission case and the outer circumferential edge of the flange portion at least in the range below the differential ring surrounding portion.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: July 10, 2018
    Assignee: AISIN AW CO., LTD.
    Inventors: Masashi Kito, Takeshi Torii, Kentaro Kakuda, Kazuya Kawamura, Tomoki Nishikubo, Shinya Yamamoto
  • Patent number: 9757915
    Abstract: The curing press for a tire blank comprises: a mold and inductors capable of heating the press by electromagnetic induction, each inductor comprising a core (36) comprising two feet (40) having respective undersides (60) which are flat and inclined in relation to one another.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: September 12, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Alain Rochette, Didier Valentin
  • Patent number: 9651137
    Abstract: An opening end of an inboard section includes: an end surface composed of a plane positioned farthest from the center of a differential device in the axial direction and perpendicular to the axial direction; a ledge positioned adjacent to the end surface in the circumferential direction of the opening end and closer to the center than the end surface in the axial direction; and a tapered section in a slope shape formed continuing to the inner diameter side of the ledge at the opening end, slanting toward the inner diameter side of the opening end and approaching the center. Lubricating oil supplied to the opening end of the inboard section flows to the tapered section via the ledge and flows from the tapered section into a spiral groove formed on an inner periphery of the inboard section.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: May 16, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahiro Yoshizawa, Koichi Fushimi, Takeo Furuta, Yuuto Sasaki, Eri Maeda, Shinobu Kurachi, Yuji Koga
  • Patent number: 9592727
    Abstract: A hybrid vehicle includes an engine, a motor configured to output power for traveling, a drive wheel coupled to the engine and the motor, a transmission provided i) between the engine and the motor and ii) between the engine and the drive wheel, the transmission being configured to shift gears in a plurality of stages or continuously, a refrigerant supply device including a pump and a refrigerant pressure regulation device, the refrigerant supply device being configured to supply a refrigerant to the motor, and the refrigerant supply device being configured to supply the refrigerant to the transmission as a hydraulic fluid, and at least one electronic control unit configured to control the refrigerant supply device based on a load situation of the motor by controlling a refrigerant supply pressure to the motor.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: March 14, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaya Yamamoto, Toshinori Okochi, Keita Imai, Tomohiko Miyamoto, Koichi Okuda
  • Patent number: 9592713
    Abstract: A utility vehicle is disclosed. The utility vehicle may include storage areas under the dash. The utility vehicle may include suspension systems for utility vehicles having shocks with both a fluidic stiffness adjustment and a mechanical stiffness adjustment. The utility vehicle may include an electrical power steering.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: March 14, 2017
    Assignee: Polaris Industries Inc.
    Inventors: Anthony J. Kinsman, Kevin Van Bronkhorst, Stephen L. Nelson
  • Patent number: 9422996
    Abstract: A wheel housing for a vehicle, such as a truck. The wheel housing includes a rotatable hub and stationary axle housing disposed within the hub. A wet brake assembly is disposed between the axle housing and the hub. The wet brake assembly includes a disc stack, which includes a plurality of friction plates that are coupled for rotation with the hub and that are separated from each other by a plurality of separator plates that remain stationary with the axle housing. The disc stack is cooled by coolant or oil that flows through a closed circuit. During a braking event, pressure spikes in the coolant circuit are alleviated by the placement of a compressible accumulator in the outlet passageway of the coolant circuit.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: August 23, 2016
    Assignee: Caterpillar Inc.
    Inventor: Andrew J Kleitsch
  • Patent number: 9387722
    Abstract: A wheel oil supply device assigned to a wheel of a vehicle includes an oil supply pathway for supplying oil to a hub bearing, which rotatably supports a hub connected to a disk wheel of the wheel, an oil seal which is interposed between the hub bearing and a region outside of the hub bearing to seal the oil supplied to the hub bearing through the oil supply pathway, and an oil guiding pathway for guiding the oil which has leaked from the hub bearing to the region outside of the hub bearing through the oil seal, to an oil reservoir which is a predetermined discharge region.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: July 12, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideki Fukudome
  • Patent number: 9309961
    Abstract: An axle assembly including a housing having a first axle tube and a second axle tube, a crown wheel mounted in the housing, a pinion in meshing engagement with the crown wheel, a first reservoir for retaining fluid in contact with the crown wheel for lubricating the crown wheel, a second reservoir for retaining fluid remote from the crown wheel, a first system for transferring fluid in the first reservoir to the second reservoir, a second system for transferring fluid in the second reservoir to the first reservoir, a sensor for generating a signal representative of an axle assembly characteristic, the axle assembly further including a control system for receiving said signal and operating said first system and or said second system to transfer fluid to or from the first reservoir in response to said signal.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: April 12, 2016
    Assignee: Meritor Technology, LLC
    Inventors: Domenico Martucci, Chiara Cesari, Marco Bassi, Fabio Santinato
  • Patent number: 9022165
    Abstract: A method of controlling a fluid pump to supply lubricating fluid to a plurality of fluid requiring components in a hybrid vehicle powertrain includes selecting a component-required flow rate for each respective component using a determined operating speed and torque for that respective component. Once the each component-required flow rate is selected, the system flow rate is set to the maximum component-required flow rate of the plurality of component-required flow rates. The fluid pump is then commanded to supply fluid to each of the plurality of fluid requiring components at the system flow rate.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 5, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Jy-Jen F. Sah, Ali K. Naqvi, Sean W. McGrogan, Mindy L. Barth, Besim Demirovic
  • Patent number: 9016429
    Abstract: A bearing system includes a sleeve bearing supported on a shaft and a gear supported on the sleeve bearing. The shaft has an outer diameter shaft surface, the sleeve bearing has an inner diameter bearing surface and an outer diameter bearing surface, and the gear has a gear bore surface. At least one of the outer diameter shaft surface, the inner diameter bearing surface, the outer diameter bearing surface, and the gear bore surface includes an isotropic surface finish and a hard thin film over the isotropic surface finish. During a break-in period of operation of the bearing system, the hard thin film over the isotropic surface finish breaks in a counter surface of the bearing system to extend a hydrodynamic lubrication period of operation of the bearing system.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: April 28, 2015
    Assignee: Caterpillar Inc.
    Inventors: Bao Feng, M. Brad Beardsley
  • Patent number: 9009993
    Abstract: A mining shovel includes a boom and a transmission unit coupled to the boom. The transmission unit includes an outer housing, an internal motor housing disposed within the outer housing, and a venting system coupled to the outer housing to direct air through both the outer housing and the internal motor housing.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: April 21, 2015
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: Richard Fischer, Nicholas Dame
  • Patent number: 8967306
    Abstract: A rear wheel driving apparatus (1) includes: a first right-left communication passage (FP) through which a left reservoir (RL) and a right reservoir (RR) are communicated with each other; and a second right-left communication passage (SP) which is provided in parallel with the first right-left communication passage (FP) and through which the left reservoir (RL) and the right reservoir (RR) are communicated with each other. Thus, flowability of a liquid fluid stored in a case (11) is enhanced, and smoothing of a fluid level is enabled.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: March 3, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takabumi Suzuki, Keiichi Ooiso, Yoshio Akiba
  • Patent number: 8863887
    Abstract: A utility vehicle which can shorten the entire length of an air intake duct includes a belt-type continuously variable transmission that converts and transmits a driving force from an engine, a transmission case that accommodates the continuously variable transmission, an air intake duct that introduces outside air into the transmission case, and an exhaust duct that discharges air in the transmission case, wherein the transmission case is provided in a console box, and an air intake port of the air intake duct is arranged in the console box.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: October 21, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Hideaki Kii
  • Patent number: 8862344
    Abstract: A clutch actuator and to a method for the control thereof. The actuator actuates a multi-disk clutch, and to do so has actuator modules. The number of which corresponds to the number of the friction clutches. The modules have separate control units and electric motors, which are controlled by the control units and act on the friction clutches by a disengaging mechanism. In order to counter block the partial drive trains disposed downstream of the friction clutches, particularly automatically closed friction clutches during a malfunction of an actuator module, the actuator modules are connected among each other to a data line, which allows monitoring of the actuator modules and counter-measures.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: October 14, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Zimmermann, Matthias Gramann, Juergen Gerhart, Martin Rapp, Wolfgang Hill, Michael Menzel, Wai-Wai Buchet
  • Publication number: 20140291060
    Abstract: A bearing system includes a sleeve bearing supported on a shaft and a gear supported on the sleeve bearing. The shaft has an outer diameter shaft surface, the sleeve bearing has an inner diameter bearing surface and an outer diameter bearing surface, and the gear has a gear bore surface. At least one of the outer diameter shaft surface, the inner diameter bearing surface, the outer diameter bearing surface, and the gear bore surface includes an isotropic surface finish and a hard thin film over the isotropic surface finish. During a break-in period of operation of the bearing system, the hard thin film over the isotropic surface finish breaks in a counter surface of the bearing system to extend a hydrodynamic lubrication period of operation of the bearing system.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 2, 2014
    Applicant: Caterpillar, Inc.
    Inventors: Bao Feng, M. Brad Beardsley
  • Patent number: 8789435
    Abstract: A cam self-adaptive automatic speed shift hub comprises a left hub frame (7), a right hub frame (18), a case body (4), a power input device, a drive shaft (1), a wheel (14) and a brake device (20). The hub further includes a low-gear drive shaft (12), a low-gear transmission mechanism positioned on the low-gear drive shaft (12), and a cone-disc clutch cam self-adaptive speed shift assembly positioned on the drive shaft (1), in which the low-gear drive shaft (12) positioned in the case body (4) is in rotation fit with the case body (4) and in parallel with the drive shaft (1). Such a cam self-adaptive automatic speed shift hub can allow the motor/engine output power and vehicle running condition always in an optimal matching state, to achieve balance control between the vehicle driving torque and the comprehensive driving resistance.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: July 29, 2014
    Assignee: Southwest University
    Inventors: Rongsheng Xue, Yupei Lin, Yunzhi Hao
  • Patent number: 8763737
    Abstract: A vehicle, such as a loader, is disclosed. The vehicle includes a cooling system having a pump that communicates coolant to heat-generating components to be cooled by the coolant.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: July 1, 2014
    Assignee: Deere & Company
    Inventor: Brian Keith Kellogg
  • Publication number: 20140102819
    Abstract: A vehicle may include a CVT unit or a power source which requires ambient air. An air net for an air intake system coupled to the CVT unit or the power source which requires ambient air may be provided in a side of a cargo carrying portion of the vehicle. The vehicle may include a rear radius arm suspension.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Applicant: Polaris Industries Inc.
    Inventors: Aaron D. Deckard, Phillip A. Nowacki, Brian R. Gillingham, Tracy S. Kofstad, Mark A. Smith, Curtis R. Kjaer, Stephen L. Nelson, Keith A. Hollman, Jerome J. Rubatt, Adam J. Schlangen
  • Patent number: 8668042
    Abstract: A hydraulic system includes a hydraulic transmission including a hydraulic pump configured to be coupled to a prime mover, a hydraulic motor configured to be coupled to an output shaft, and fluid lines coupling the hydraulic pump to the hydraulic motor to provide a fluid circuit providing flow communication between the hydraulic pump and the hydraulic motor, such that operation of the hydraulic pump provides fluid flow to the hydraulic motor, and the hydraulic motor supplies torque to the output shaft. A controller is configured to control operation of the hydraulic transmission. The controller is configured to receive signals indicative of pressure in the fluid circuit and reduce an output of the hydraulic pump when the pressure in the fluid circuit reaches a pressure level, and a rate of response of the reduction of the output of the hydraulic pump is varied based on a temperature of fluid in the fluid circuit.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: March 11, 2014
    Assignee: Caterpillar Inc.
    Inventor: Christopher M. Elliott
  • Patent number: 8606495
    Abstract: A method for a safety system of a mining vehicle. The method comprises scanning the surroundings of the mining vehicle while the mining vehicle is driven and giving a collision warning if an obstacle is detected in a safety zone of the mining vehicle. In the system, there is stored obstacle information comprising at least location information of predetermined obstacles. Location information of the obstacle detected on the basis of the scanning is compared with the location information determined in the obstacle information. Stopping of the mining vehicle, caused by the safety system due to the detected obstacle, is prevented in response to the detected obstacle being determined safe on the basis of checking the obstacle information.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: December 10, 2013
    Assignee: Sandvik Mining and Construction Oy
    Inventors: Hannu Makela, Jouni Sievila, Jarkko Uotila
  • Patent number: 8596406
    Abstract: A utility vehicle is provided. The utility vehicle may include a transmission including a transmission mechanism and a transmission case assembly for accommodating the transmission mechanism; and an air discharge duct coupled to the transmission case assembly, to discharge air from inside the transmission case assembly; wherein the air discharge duct includes an upward extending portion extending substantially upward from the transmission case assembly, and a downward extending portion which is bent back at an upper end portion of the upward extending portion, and then extends substantially downward; and the upward extending portion and the downward extending portion partially overlap with each other in at least either a forward and rearward direction or a rightward and leftward direction.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: December 3, 2013
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Seiji Itoo, Hideaki Kii
  • Patent number: 8565954
    Abstract: Methods, systems, and vehicles are provided pertaining to the determination of a temperature of a vehicle motor having an ignition when the ignition is turned on following a period of time in which the ignition had been turned off. A memory stores a function having a boundary condition that comprises a prior temperature from when the ignition was turned off. A processor is coupled to the memory. The processor is configured to determine an amount of time for which the ignition has been turned on and determine the temperature of the motor using the function if the amount of time for which the ignition has been turned on is less than a predetermined threshold.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: October 22, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Chia-Chou Yeh, Daniel J. Berry, Paul F. Turnbull
  • Patent number: 8439141
    Abstract: A work vehicle includes: a muffler which flows exhaust from an engine and extends in a transverse direction so as to allow the exhaust from the engine to flow in the transverse direction; and a CVT case for covering a belt-type CVT positioned frontward of the muffler in a longitudinal direction. The CVT case includes a cooling structure for introducing cooling air from outside, cooling the belt-type CVT, and discharging the cooling air from a discharge part. An exhaust duct includes an inflow opening to be connected to the discharge part for allowing the cooling air to flow into the exhaust duct, and an exhaust opening for allowing the cooling air to flow out rearward. The exhaust opening is elongated in an extending direction of the muffler and oriented in a direction that allows the cooling air flowing out to hit the muffler.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: May 14, 2013
    Assignee: Kubota Corporation
    Inventors: Hiroki Bessho, Ryouzou Imanishi, Shoichiro Kawamura, Masatake Murakawa
  • Patent number: 8428818
    Abstract: When the drive of a lubricant pump (46) is stopped to prevent the lubricant pump (46) from assuming an idling state, a determination is made as to whether or not a temperature difference (?T) between the temperature (T) of a lubricant oil detected earlier by a temperature sensor (51) and a warning temperature (Toh) is equal to or lower than a predetermined threshold value (?). When the temperature difference (?T) is within the threshold value (?), an “overheat” warning is issued to an operator of a dump truck (1). In consequence, even in a case where a temperature sensor (51) is provided on the output side of the lubricant pump (46) by being located on an outer side of a wheel mounting case (19), planetary gear reduction mechanisms (23), (31) inside the wheel mounting case (19) can be prevented from overheating by warning the operator of the vehicle.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: April 23, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Takayoshi Murahashi, Toshikazu Minoshima, Takao Kurosawa
  • Publication number: 20130087403
    Abstract: A utility vehicle is provided. The utility vehicle may include a transmission including a transmission mechanism and a transmission case assembly for accommodating the transmission mechanism; and an air discharge duct coupled to the transmission case assembly, to discharge air from inside the transmission case assembly; wherein the air discharge duct includes an upward extending portion extending substantially upward from the transmission case assembly, and a downward extending portion which is bent back at an upper end portion of the upward extending portion, and then extends substantially downward; and the upward extending portion and the downward extending portion partially overlap with each other in at least either a forward and rearward direction or a rightward and leftward direction.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 11, 2013
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Seiji Itoo, Hideaki Kii
  • Publication number: 20120247846
    Abstract: A work vehicle comprising, a power unit, an electric motor activated by electric power from the power unit, a propelling transmission system for receiving drive power from the electric motor, a cabin including a roof portion the driver rides, an air conditioner for adjusting air temperature in the interior of the cabin. the power unit and the air conditioner are provided in the roof portion of the cabin.
    Type: Application
    Filed: September 15, 2011
    Publication date: October 4, 2012
    Applicant: KUBOTA CORPORATION
    Inventor: Nobushige Ichikawa
  • Patent number: 8251851
    Abstract: An auxiliary oil pumping system for an automatic transmission includes an auxiliary oil pump, the auxiliary oil pump being separate from an internal oil pump of the transmission but connected to an oil circuit of the automatic transmission to circulate oil in the system. An oil pump motor is connected to the auxiliary oil pump and selectively connectable to a power source for driving the auxiliary oil pump when a vehicle engine is off and the internal oil pump is not operating.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: August 28, 2012
    Assignee: ATI Performance Products, Inc.
    Inventor: James C. Beattie, Jr.
  • Patent number: 8205709
    Abstract: A system for heating and cooling the transmission fluid including a heat exchanger adapted to transfer heat between an engine coolant and a transmission fluid and a controller for controlling a valve to place the system into a select one of three modes including a heater core priority mode wherein no engine coolant flows to the heat exchanger, a heating mode wherein hot engine coolant flows directly to the heat exchanger from the engine and a cooling mode wherein cool engine coolant flows directly to the heat exchanger from the radiator, whereby the transmission fluid is heated in an efficient manner with minimal impact on passenger compartment heating.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: June 26, 2012
    Assignee: Ford Global Technologies, LLC.
    Inventors: James Thomas Gooden, Hamish Macwillson, Dragos Catalin Iliescu
  • Patent number: 8160773
    Abstract: In case a temperature (T) of a lubricant oil (G) cannot be detected by an oil temperature sensor (51) provided on an output side of a lubricant pump (46), the temperature (Tm) of a wheel drive motor (17) is detected by using a motor temperature sensor (53) provided on the wheel drive motor (17). By estimating the temperature (T) of the lubricant oil (G) from the temperature (Tm) of the wheel drive motor (17), monitoring is carried out as to whether or not the temperature (Tm) has risen to a predetermined temperature (Tms) at which the cooling of the lubricant oil (G) by forced circulation is deemed necessary. The drive of a lubricant pump (46) by a pump drive motor (47) is stopped until the motor temperature (Tm) rises to a level exceeding the predetermined temperature (Tms).
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: April 17, 2012
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoshifumi Nabeshima, Takayoshi Murahashi, Toshikazu Minoshima, Yutaka Watanabe
  • Patent number: 8155834
    Abstract: A lubricant circulation pump (46) which is driven by an electric motor (47) is provided in the course of a circulation path (41A, 41B) for circulating lubricant oil to a wheel mounting case (19) which is rotated together with a rear wheel (7). Turning on and off the lubricant circulation pump is controlled according to rotational speed of the rear wheel. When lubricant oil in the wheel mounting case sticks on inner peripheral surfaces thereof under the influence of centrifugal force as a result of the increased vehicle speed, the electric motor is turned off to suspend operation of the lubricant circulation pump. Consequently, the lubricant circulation pump does not suck lubricant oil in the wheel mounting case through an inlet opening (42A) of an intake pipe (42), thereby preventing the lubricant circulation pump from being put in a dry idling operation.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: April 10, 2012
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventor: Takayoshi Murahashi
  • Patent number: 8145384
    Abstract: The present invention provides a traveling speed reduction gear lubricating oil cooling device that enables optimal temperature control for lubricating oil delivered via a lubricating oil pump that can be started up with a relatively small motor without running the risk of damage to an oil cooler in a cold work environment even when a temperature sensor that detects the temperature of the lubricating oil is installed outside a wheel mounting sleeve. During a startup operation, provided that the detected temperature at a traveling motor is higher than the reference temperature, the lubricating oil pump is driven at a speed in a lower speed range relative to the normal operation speed range. In addition, during the startup operation, the rotation speed of the drive motor for the lubricating oil pump is increased in correspondence to a rise in the temperature detected by a lubricating oil temperature detection sensor.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: March 27, 2012
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Takayoshi Murahashi, Osamu Murakami, Kenji Itoh
  • Patent number: 8108101
    Abstract: A traveling speed reduction gear lubricating oil cooling device has a temperature sensor for detecting the temperature of lubricating oil to be installed outside a wheel mounting sleeve without running the risk of damage to a lubricating oil pump in a cold work environment. A startup operation reference speed lower than a reference speed for normal operation is set so as to ensure that air intake does not occur. A startup operation comparison device compares the speed detected by a speed sensor with the startup operation reference speed. If the detected speed is lower than the startup operation reference speed, a drive motor for the lubricating oil pump is engaged in operation at a speed lower than a normal operation speed. If the detected speed is higher than the startup operation reference speed, the drive motor for the lubricating oil pump is turned off.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: January 31, 2012
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Takayoshi Murahashi, Toshikazu Minoshima, Takao Kurosawa
  • Publication number: 20110284309
    Abstract: A system for heating and cooling the transmission fluid including a heat exchanger adapted to transfer heat between an engine coolant and a transmission fluid and a controller for controlling a valve to place the system into a select one of three modes including a heater core priority mode wherein no engine coolant flows to the heat exchanger, a heating mode wherein hot engine coolant flows directly to the heat exchanger from the engine and a cooling mode wherein cool engine coolant flows directly to the heat exchanger from the radiator, whereby the transmission fluid is heated in an efficient manner with minimal impact on passenger compartment heating.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: James Thomas Gooden, Hamish Macwillson, Dragos Catalin Iliescu
  • Publication number: 20110042159
    Abstract: A vehicle, such as a loader, is disclosed. The vehicle includes a cooling system having a pump that communicates coolant to heat-generating components to be cooled by the coolant.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 24, 2011
    Applicant: Deere and Company
    Inventor: Brian Keith Kellogg
  • Patent number: 7882911
    Abstract: A straddle-type vehicle with enhanced heat exhaust efficiency in a transmission case housing a continuously variable transmission. The continuously variable transmission and an engine are arranged forward of a rear wheel 4. An air intake duct introduces outside air into the transmission case and an air exhaust duct exhausts air from the transmission case. The air exhaust duct is connected to and extends upward from a top portion of the transmission case. The air exhaust duct has an air exhaust port that is positioned above the transmission case.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: February 8, 2011
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Takayuki Nobuhira
  • Patent number: 7874397
    Abstract: To provide the breather structure of a shaft-drive-type drive device which can miniaturize a gear casing as a whole and can exhibit an excellent appearance. A shaft-drive-type drive device is capable of transmitting an output of an engine mounted on a vehicle body to a wheel by way of a drive shaft by connecting one end of the drive shaft to an output shaft of the engine by way of a universal joint and by connecting the wheel to another end side of the drive shaft by way of gears or the like. A breather mechanism, which performs a breathing operation of the inside of a gear casing housing the gears or the like, is mounted on the gear casing, and an atmosphere opening portion of the breather mechanism is formed to open upwardly in the vertical direction of a vehicle and inwardly in the width direction of the vehicle.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: January 25, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Taisuke Nimura, Kenji Kofuji
  • Patent number: 7861819
    Abstract: A vehicle drive line (1), comprising an engine (2) provided with an outgoing crank shaft (3), a main transmission unit (4), an intermediate drive shaft (8) that connects the main transmission unit (4) with the crank shaft (3), the intermediate drive shaft (8) being connected to the crank shaft (3) through a second transmission unit (7), and being offset in relation to the crank shaft (3). The drive line (1) comprises a circuit through which a liquid used for lubricating the main transmission unit (4) is conducted to the second transmission unit (7) and used for cooling and lubrication purposes in the latter, and then conducted back to the main transmission unit (4).
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: January 4, 2011
    Assignee: Atlas Copco Rock Drills AB
    Inventor: Joseph Lindekugel
  • Publication number: 20100300797
    Abstract: A cooling system for an electrically variable transmission includes an electric motor having a plurality of connectors. The plurality of connectors are each assembled within a plurality of connector openings in a terminal block. Fluid from within a passageway is supplied by a pressurized fluid source, and an orifice for the passageway is located adjacent to one of the plurality of connector opening. The fluid flowing from the passageway is directed onto one of the plurality of connectors.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Timothy J. Reinhart, Kevin P. Coleman, Eric S. Tryon, William S. Reed, Grantland I. Kingman
  • Patent number: 7810600
    Abstract: A motorcycle has a duct that is simple in construction to introduce cooling air into a belt chamber while simultaneously preventing invasion of dust, etc. into the belt chamber. A rear fender defines a wall that separates the seat and a rear tire. An outside-air intake port of the duct is arranged in a space formed between the seat and the wall.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: October 12, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Torao Matsuzawa
  • Patent number: 7779958
    Abstract: A hydraulic pressurizer system (30) comprises a drive source (an engine 2 and a motor generator 4), which drives a hybrid vehicle (1), a mechanical oil pump (20), which is driven by the drive source, an electrical motor (22), which is activated by a 12V battery (24), an electrical oil pump (21), which is driven by the electrical motor (22), and a control unit (15), which activates the electrical motor (22). The pressurizer further comprises a ratio-change mechanism (7), which is activated by hydraulic oil supplied by the mechanical oil pump (20) and by the electrical oil pump (21) to establish a speed change ratio, at which the rotational driving force of the drive source is transmitted to wheels (8) with a rotational speed change. For executing a control for stopping the drive source, the control unit (15) executes a cleaning operation, which operates the electrical oil pump (21) for a predetermined time before the stopping of the drive source.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: August 24, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuhiko Kitano, Osahide Miyamoto, Tomohisa Kaneda
  • Publication number: 20100155170
    Abstract: A utility vehicle is disclosed having a flat or quasi-flat floor section in an operator area. The utility vehicle may also include an air inlet for an engine intake system being forward of the operator area. The utility vehicle may also include an air inlet for a CVT cooling system positioned to draw air from the operator area. The utility vehicle may also one or more cup holders positioned in the operator area below seat level.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Inventors: Timothy F. Melvin, Robbi L. Peterson, Steven D. Corneliusen