With Temperature Control, Lubrication Or Sealing Patents (Class 180/339)
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Patent number: 11801727Abstract: 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: GrantFiled: September 22, 2022Date of Patent: October 31, 2023Assignee: Taiga Motors Inc.Inventors: Samuel Bruneau, Paul Achard, Marc-Olivier Gagnon
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Patent number: 11772419Abstract: 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: GrantFiled: February 25, 2020Date of Patent: October 3, 2023Assignee: AKTIEBOLAGET SKFInventors: Ganesh Kamath, Cengiz R Shevket, Fabricio Teixeira
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Patent number: 11506273Abstract: 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: GrantFiled: September 23, 2019Date of Patent: November 22, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Do Youn Jang
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Patent number: 11486492Abstract: 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: GrantFiled: March 22, 2021Date of Patent: November 1, 2022Assignee: AISIN CORPORATIONInventors: Kosuke Sakai, Takashi Mizuno
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Patent number: 10760673Abstract: 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: GrantFiled: October 18, 2018Date of Patent: September 1, 2020Assignee: JTEKT CORPORATIONInventors: Hajime Watanabe, Yuichi Matsumoto
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Patent number: 10655727Abstract: 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: GrantFiled: August 24, 2016Date of Patent: May 19, 2020Assignee: ZF FRIEDRICHSHAFEN AGInventors: Rainer Grundler, Markus Herrmann, Thilo Schmidt, Dietmar Gehring, Dirk Winkler
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Patent number: 10525767Abstract: 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: GrantFiled: March 17, 2016Date of Patent: January 7, 2020Assignee: Topy Kogyo Kabushiki KaishaInventors: Masaki Kawai, Jiro Yazawa
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Patent number: 10100800Abstract: 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: GrantFiled: October 2, 2017Date of Patent: October 16, 2018Assignee: MAGNA ELECTRONICS INC.Inventors: Oscar Flores-Bamaca, Kenneth J. Baize
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Patent number: 10047851Abstract: 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: GrantFiled: November 30, 2016Date of Patent: August 14, 2018Assignees: Hyundai Motor Company, Kia Motors Corp.Inventors: Kyoung Wook Kim, Ki Hyup Kim, Tae Seok Seo, Seok Hyun Lee, Soon Ho Moon
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Patent number: 10018265Abstract: 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: GrantFiled: March 27, 2014Date of Patent: July 10, 2018Assignee: AISIN AW CO., LTD.Inventors: Masashi Kito, Takeshi Torii, Kentaro Kakuda, Kazuya Kawamura, Tomoki Nishikubo, Shinya Yamamoto
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Patent number: 9757915Abstract: 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: GrantFiled: October 18, 2012Date of Patent: September 12, 2017Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.Inventors: Alain Rochette, Didier Valentin
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Patent number: 9651137Abstract: 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: GrantFiled: March 19, 2013Date of Patent: May 16, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Masahiro Yoshizawa, Koichi Fushimi, Takeo Furuta, Yuuto Sasaki, Eri Maeda, Shinobu Kurachi, Yuji Koga
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Patent number: 9592727Abstract: 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: GrantFiled: October 30, 2015Date of Patent: March 14, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaya Yamamoto, Toshinori Okochi, Keita Imai, Tomohiko Miyamoto, Koichi Okuda
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Patent number: 9592713Abstract: 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: GrantFiled: April 6, 2015Date of Patent: March 14, 2017Assignee: Polaris Industries Inc.Inventors: Anthony J. Kinsman, Kevin Van Bronkhorst, Stephen L. Nelson
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Patent number: 9422996Abstract: 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: GrantFiled: August 11, 2014Date of Patent: August 23, 2016Assignee: Caterpillar Inc.Inventor: Andrew J Kleitsch
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Patent number: 9387722Abstract: 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: GrantFiled: December 27, 2012Date of Patent: July 12, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hideki Fukudome
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Patent number: 9309961Abstract: 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: GrantFiled: May 8, 2014Date of Patent: April 12, 2016Assignee: Meritor Technology, LLCInventors: Domenico Martucci, Chiara Cesari, Marco Bassi, Fabio Santinato
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Patent number: 9022165Abstract: 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: GrantFiled: July 3, 2012Date of Patent: May 5, 2015Assignee: GM Global Technology Operations LLCInventors: Jy-Jen F. Sah, Ali K. Naqvi, Sean W. McGrogan, Mindy L. Barth, Besim Demirovic
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Patent number: 9016429Abstract: 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: GrantFiled: April 2, 2013Date of Patent: April 28, 2015Assignee: Caterpillar Inc.Inventors: Bao Feng, M. Brad Beardsley
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Patent number: 9009993Abstract: 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: GrantFiled: September 12, 2013Date of Patent: April 21, 2015Assignee: Harnischfeger Technologies, Inc.Inventors: Richard Fischer, Nicholas Dame
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Patent number: 8967306Abstract: 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: GrantFiled: April 4, 2012Date of Patent: March 3, 2015Assignee: Honda Motor Co., Ltd.Inventors: Takabumi Suzuki, Keiichi Ooiso, Yoshio Akiba
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Patent number: 8863887Abstract: 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: GrantFiled: February 28, 2013Date of Patent: October 21, 2014Assignee: Kawasaki Jukogyo Kabushiki KaishaInventor: Hideaki Kii
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Patent number: 8862344Abstract: 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: GrantFiled: July 1, 2010Date of Patent: October 14, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Martin Zimmermann, Matthias Gramann, Juergen Gerhart, Martin Rapp, Wolfgang Hill, Michael Menzel, Wai-Wai Buchet
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Publication number: 20140291060Abstract: 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: ApplicationFiled: April 2, 2013Publication date: October 2, 2014Applicant: Caterpillar, Inc.Inventors: Bao Feng, M. Brad Beardsley
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Patent number: 8789435Abstract: 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: GrantFiled: August 29, 2008Date of Patent: July 29, 2014Assignee: Southwest UniversityInventors: Rongsheng Xue, Yupei Lin, Yunzhi Hao
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Patent number: 8763737Abstract: 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: GrantFiled: August 20, 2009Date of Patent: July 1, 2014Assignee: Deere & CompanyInventor: Brian Keith Kellogg
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Publication number: 20140102819Abstract: 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: ApplicationFiled: December 18, 2013Publication date: April 17, 2014Applicant: 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
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Patent number: 8668042Abstract: 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: GrantFiled: November 29, 2011Date of Patent: March 11, 2014Assignee: Caterpillar Inc.Inventor: Christopher M. Elliott
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Patent number: 8606495Abstract: 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: GrantFiled: May 6, 2011Date of Patent: December 10, 2013Assignee: Sandvik Mining and Construction OyInventors: Hannu Makela, Jouni Sievila, Jarkko Uotila
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Patent number: 8596406Abstract: 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: GrantFiled: October 7, 2011Date of Patent: December 3, 2013Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Seiji Itoo, Hideaki Kii
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Patent number: 8565954Abstract: 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: GrantFiled: October 6, 2011Date of Patent: October 22, 2013Assignee: GM Global Technology Operations LLCInventors: Chia-Chou Yeh, Daniel J. Berry, Paul F. Turnbull
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Patent number: 8439141Abstract: 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: GrantFiled: March 18, 2011Date of Patent: May 14, 2013Assignee: Kubota CorporationInventors: Hiroki Bessho, Ryouzou Imanishi, Shoichiro Kawamura, Masatake Murakawa
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Patent number: 8428818Abstract: 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: GrantFiled: December 8, 2009Date of Patent: April 23, 2013Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Takayoshi Murahashi, Toshikazu Minoshima, Takao Kurosawa
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Publication number: 20130087403Abstract: 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: ApplicationFiled: October 7, 2011Publication date: April 11, 2013Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Seiji Itoo, Hideaki Kii
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Publication number: 20120247846Abstract: 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: ApplicationFiled: September 15, 2011Publication date: October 4, 2012Applicant: KUBOTA CORPORATIONInventor: Nobushige Ichikawa
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Patent number: 8251851Abstract: 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: GrantFiled: March 16, 2009Date of Patent: August 28, 2012Assignee: ATI Performance Products, Inc.Inventor: James C. Beattie, Jr.
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Patent number: 8205709Abstract: 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: GrantFiled: May 21, 2010Date of Patent: June 26, 2012Assignee: Ford Global Technologies, LLC.Inventors: James Thomas Gooden, Hamish Macwillson, Dragos Catalin Iliescu
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Patent number: 8160773Abstract: 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: GrantFiled: December 4, 2009Date of Patent: April 17, 2012Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Yoshifumi Nabeshima, Takayoshi Murahashi, Toshikazu Minoshima, Yutaka Watanabe
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Patent number: 8155834Abstract: 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: GrantFiled: May 26, 2008Date of Patent: April 10, 2012Assignee: Hitachi Construction Machinery Co., Ltd.Inventor: Takayoshi Murahashi
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Patent number: 8145384Abstract: 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: GrantFiled: November 10, 2009Date of Patent: March 27, 2012Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Takayoshi Murahashi, Osamu Murakami, Kenji Itoh
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Patent number: 8108101Abstract: 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: GrantFiled: November 10, 2009Date of Patent: January 31, 2012Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Takayoshi Murahashi, Toshikazu Minoshima, Takao Kurosawa
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Publication number: 20110284309Abstract: 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: ApplicationFiled: May 21, 2010Publication date: November 24, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: James Thomas Gooden, Hamish Macwillson, Dragos Catalin Iliescu
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Publication number: 20110042159Abstract: 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: ApplicationFiled: August 20, 2009Publication date: February 24, 2011Applicant: Deere and CompanyInventor: Brian Keith Kellogg
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Patent number: 7882911Abstract: 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: GrantFiled: August 19, 2008Date of Patent: February 8, 2011Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Takayuki Nobuhira
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Patent number: 7874397Abstract: 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: GrantFiled: March 25, 2008Date of Patent: January 25, 2011Assignee: Honda Motor Co., Ltd.Inventors: Taisuke Nimura, Kenji Kofuji
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Patent number: 7861819Abstract: 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: GrantFiled: June 27, 2006Date of Patent: January 4, 2011Assignee: Atlas Copco Rock Drills ABInventor: Joseph Lindekugel
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Publication number: 20100300797Abstract: 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: ApplicationFiled: May 29, 2009Publication date: December 2, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Timothy J. Reinhart, Kevin P. Coleman, Eric S. Tryon, William S. Reed, Grantland I. Kingman
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Patent number: 7810600Abstract: 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: GrantFiled: April 27, 2007Date of Patent: October 12, 2010Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Torao Matsuzawa
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Patent number: 7779958Abstract: 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: GrantFiled: November 30, 2005Date of Patent: August 24, 2010Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiko Kitano, Osahide Miyamoto, Tomohisa Kaneda
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Publication number: 20100155170Abstract: 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: ApplicationFiled: December 22, 2008Publication date: June 24, 2010Inventors: Timothy F. Melvin, Robbi L. Peterson, Steven D. Corneliusen