Between Prime Mover Shaft And Transmission Patents (Class 74/15.84)
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Patent number: 11773950Abstract: Regarding a travel power transmission apparatus for a tractor, in which a creep speed changing apparatus is housed in a transmission case, the present invention increases a deceleration ratio throughout the creep speed change while suppressing an increase in the size of the transmission case.Type: GrantFiled: September 2, 2019Date of Patent: October 3, 2023Assignee: Kubota CorporationInventor: Yasuyuki Oka
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Patent number: 11607951Abstract: A power take-off device for a motor vehicle has a drive input, two drive outputs and a clutch. The first drive output channels drive torque from the power take-off device to propel the motor vehicle. The second drive output channels drive torque from the power take-off device to an auxiliary unit to drive the auxiliary unit. The clutch selectively couples the drive input to the first and second drive outputs. The clutch has three shift positions. In the first shift position, the drive input is coupled to the first drive output and decoupled from the second drive output. In the second shift position, the drive input is coupled to the second drive output and decoupled from the first drive output. In the third shift position, the drive input is coupled to both the first and second drive outputs.Type: GrantFiled: March 5, 2021Date of Patent: March 21, 2023Assignee: ZF Friedrichshafen AGInventors: Michael Epple, Frank Sauter
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Patent number: 11453996Abstract: A sealing assembly for a circle member of a motor grader is provided. The sealing assembly includes a plurality of cover segments disposed adjacent to an inner circumference of the circle member. At least one of the plurality of cover segments defines a gap in association with a component disposed adjacent to the at least one of the plurality of cover segments. The sealing assembly also includes a sealing element removably disposed on the at least one of the plurality of cover segments and extending into the gap. The sealing element is adapted to sealingly engage each of the at least one of the plurality of cover segments and the component.Type: GrantFiled: August 20, 2019Date of Patent: September 27, 2022Assignee: Caterpillar Inc.Inventors: Benjamin Kovalick, Nathaniel K. Harshman, Lankesh Mathur Shanmukappa, Bruce Raymond Vahling
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Patent number: 10086696Abstract: An agricultural working vehicle transmission combination includes: a clutch housing having a flywheel housing integrally formed thereon so as to cover an engine flywheel and a hollow transmission case directly connected to the rear side of the clutch housing. The clutch housing includes a PTO clutch unit for connecting/disconnecting transfer of engine power to a PTO shaft, a main gear-shifting unit for primary gear-shifting of engine power, and a bi-speed turn unit for front-wheel bi-speed turn execution. The transmission case includes a forward/backward gear-shifting unit connected to the rear side of the main gear-shifting unit via an intermediate clutch such that power can be transferred and a sub gear-shifting unit for secondary gear-shifting behind the forward/backward gear-shifting unit.Type: GrantFiled: May 28, 2015Date of Patent: October 2, 2018Assignee: DAEDONG INDUSTRIAL CO., LTD.Inventors: Dong Wook Park, Ki Sung Shin
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Patent number: 9500197Abstract: A pump assembly for a vehicle transmission that is coupled to a prime mover, a chain drive assembly, a hydraulic pump with a rotor, and a planetary gear set. A drive sprocket of the chain drive assembly is rotationally coupled with the prime mover. The planetary gear set includes first, second, and third members. The first member is rotatable with the pump and the third member is rotatable with the driven sprocket.Type: GrantFiled: May 18, 2012Date of Patent: November 22, 2016Assignee: GM Global Technology Operations, LLCInventors: John C. Schultz, Philip C. Lundberg
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Patent number: 8919214Abstract: A transmission and power take-off unit assembly is provided including a transmission, a power take-off unit, and an alignment sleeve and seal assembly. The transmission and power take-off housing both include a bearing surface and locating surface that are machined by a tool having two coaxial cutting wheels. The alignment sleeve enables tighter tolerances for improved concentricity between the bearing surface and locating surface.Type: GrantFiled: May 21, 2012Date of Patent: December 30, 2014Assignee: GM Global Technology Operations, LLCInventor: Craig Raymond Brooks
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Patent number: 8733191Abstract: A drive arrangement is disclosed for a motor vehicle power take off (PTO). The arrangement comprises a PTO shaft 104,158,207 of a known type intended for coupling to a power driven implement. An input shaft is arranged to be coupled to a rotary driver such as an engine. A continuously variable transmission such as 10 is coupled between the input and PTO shafts to transfer drive between them at a continuously variable ratio. In accordance with the invention, the continuously variable transmission is constructed and arranged such as to regulate torque and to automatically accommodate changes in speed at the PTO Shaft by virtue of changes in its drive ratio.Type: GrantFiled: April 21, 2006Date of Patent: May 27, 2014Assignee: Torotrak (Development) LimitedInventor: Robert Andrew Oliver
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Patent number: 8561490Abstract: A farm vehicle power take-off device, in particular for a tractor, wherein an output shaft is connected selectively by a drive to a first and second input shaft rotating at different speeds. The selective connection is made by moving a selector sleeve between three settings, in a first and second of which, the output shaft is connected to the first shaft to rotate at a first and second angular speed respectively, and, in a third of which, the output shaft is connected to the second shaft to rotate at a third angular speed different from the first and second angular speed.Type: GrantFiled: April 13, 2008Date of Patent: October 22, 2013Assignee: CNH America LLCInventors: Giancarlo Benassi, Ivan Tioli
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Publication number: 20130047753Abstract: A tractor (100) comprises an internal combustion engine (107) for delivering torque, wheels (10-104) or tracks for imparting a propulsive force to the ground, and a power takeoff shaft (110) for delivering torque to implements attached thereto. The power takeoff shaft is driven by a mechanical drive connection to the engine. An electrical motor/generator (115) is drivingly connected to the engine, and at least one electrical motor (121-124) is arranged to deliver a propulsion force to the wheels or tracks. The motor is electrically connected to, and powered by, the electrical motor/generator. A battery (120) is connected to the electrical motor/generator and to the electrical motor so that electrical energy can be passed therebetween. The motor/generator can also operate as a motor so that the power takeoff shaft is at least partially powered by electrical energy from the battery.Type: ApplicationFiled: May 3, 2011Publication date: February 28, 2013Applicant: AGCO SAInventors: Geoffroy Husson, Malcolm Shute, Gabriel Menier
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Patent number: 8161834Abstract: In a motor vehicle transmission with a power take-off drive, an auxiliary drive clutch in the form of a jaw clutch is arranged in the torque flow downstream of the transmission input clutch for coupling the power take-off drive to the transmission input shaft under the control of the drive motor clutch while the transmission is disconnected.Type: GrantFiled: May 7, 2010Date of Patent: April 24, 2012Assignee: Daimler AGInventor: Frank Steffens
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Patent number: 8161833Abstract: A power take-off device for an agricultural vehicle, in particular a tractor, wherein an input shaft is connected to a first and, selectively, a second output shaft by moving a sleeve-type selector between three selection positions, in the first of which, the input shaft is connected angularly to the first output shaft to rotate the first output shaft at a first speed, and in the second and third of which, the input shaft is connected angularly to the second output shaft to rotate the second output shaft at a second speed and a third speed, different from the second speed.Type: GrantFiled: April 12, 2008Date of Patent: April 24, 2012Assignee: CNH America LLCInventors: Giancarlo Benassi, Ivan Tioli
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Patent number: 7841430Abstract: A transmission includes a transmission case accommodating a planetary gear mechanism, a traveling speed change mechanism, a differential gear mechanism and a PTO clutch mechanism, and supporting an HST. The HST is connected to a first end wall of the transmission case positioned on one side in a vehicle longitudinal direction in a state that its HST output shaft is positioned its HST input shaft. A plurality of traveling rotational shafts forming a traveling transmission path are positioned coaxially with the HST output shaft, or on a first side of the HST output shaft in a vehicle width direction and below the HST output shaft. A plurality of PTO rotational shafts forming the PTO transmission path are positioned coaxially with or below the HST input shaft.Type: GrantFiled: July 18, 2006Date of Patent: November 30, 2010Assignee: Yanmar Co., Ltd.Inventor: Kenji Shiba
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Patent number: 7765884Abstract: A power take-off assembly for transmitting rotary power from the powertrain of a motor vehicle includes a torque converter for an automatic transmission and including an impeller shaft connected driveably to a power source, a housing having a opening through a wall of the housing, and a power takeoff gear secured to the impeller shaft, located in the housing, aligned with the opening, and supported for rotation about an axis.Type: GrantFiled: September 27, 2007Date of Patent: August 3, 2010Assignee: Ford Global Technologies, LLCInventors: Steven A. Frait, Robert J. Miller
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Publication number: 20090293652Abstract: An apparatus comprising a power take-off shaft includes an outer shaft and an inner shaft. The outer shaft includes an outer periphery and an inner periphery. The inner shaft includes an outer periphery and an inner periphery. A notch is configured around at least a portion of the outer periphery of the inner shaft, and a self-lubricating material is disposed on at least a portion of the notch.Type: ApplicationFiled: May 28, 2008Publication date: December 3, 2009Inventor: Warren D. Williamson
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Patent number: 7581695Abstract: There is described a helicopter having a transmission for transmitting motion from a driving member to a driven member; the transmission has at least a first gear driven by the driving member, and a second gear meshing with the first gear and in turn driving the driven member; the first and second gear have teeth shaped so that the gears mesh with one another at at least two pairs of respective simultaneously meshing teeth; the teeth of at least one of the gears have a profile having an end portion relieved with respect to a starting theoretical involute; and the pattern of the distance between the points of the end portion and the starting involute along an axis of the tooth has at least a first and a second segment sloping with respect to each other.Type: GrantFiled: December 27, 2007Date of Patent: September 1, 2009Assignee: Agusta S.p.A.Inventors: Giuseppe Gasparini, Sergio Sartori, Nihat Yildirim
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Patent number: 7584040Abstract: The following steps are performed in the control method: determining a mode of operation from amongst a permanent mode and a transient mode, as a function of a set of variables comprising said estimated values; correcting the value of the speed of rotation of the outlet shaft in such a manner that: if the mode has been determined as being the permanent mode, then the moving average (L?) of the gear ratio (L) over a period (T) of a plurality of unit time intervals lies between a first threshold value (S1) that is negative and a second threshold value (S2) that is positive; and if the mode has been determined as being the transient mode, then said moving average (L?) of the gear ratio (L) lies outside the range of values defined by the first and second threshold value (S1, S2).Type: GrantFiled: February 3, 2004Date of Patent: September 1, 2009Assignee: Peugeot Citroen Automobiles SAInventor: Stéphane Rimaux
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Publication number: 20090158867Abstract: The present invention relates to a transmission arrangement of an agricultural or industrial utility vehicle, in particular of an agricultural tractor. The transmission arrangement comprises a drive transmission, which can be driven by an engine of the utility vehicle, and a PTO transmission. The drive transmission has a rear-axle transmission output for driving a rear axle of the utility vehicle. The drive transmission has a front axle transmission output for driving a front axle of the utility vehicle. The PTO transmission serves to drive an implement adaptable to the utility vehicle. The PTO transmission can be driven via a PTO transmission output of the drive transmission or independently of the drive transmission via a shaft driven by the engine of the utility vehicle.Type: ApplicationFiled: December 17, 2008Publication date: June 25, 2009Inventor: Frank Buhrke
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Patent number: 7347804Abstract: Automatic engaging method (and disengaging method) for a coupling-independent power take-off (32), which power take-off (32) is driven by an internal combustion engine (1) arranged in a vehicle. The vehicle is equipped with an automatic stage-geared gearbox (9) and an automated disk clutch (3). The control unit (45) registers that engagement of he power take-off (32) is requested; the control unit (45) disengages the disk clutch (3); the control unit (45) reduces the engine speed or stops the engine (1); the control unit (45) engages the power take-off (32); the control unit (45) couples the disk clutch (3) together or, if the engine (1) is stopped, starts the engine (1) and couples the disk clutch (3) together.Type: GrantFiled: April 16, 2005Date of Patent: March 25, 2008Assignee: Volvo Lastvagnar ABInventors: Marcus Steen, Lars Bråthe, Anders Eriksson
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Patent number: 7100464Abstract: A splined connection comprises a shaft with longitudinal radially outwardly protruding ridges and intermediate grooves, a hub provided with correspondingly shaped ridges and intermediate grooves and is adapted to being fitted in engagement with the shaft ridges and grooves to provide between the shaft and the hub a connection region causing the shaft and hub to rotate together. A sealing arrangement adapted to close off the connection region. The sealing arrangement comprises two annular sealing elements applied at an axial distance from one another and adjacent to the connection region so that the sealing elements are each in continuous contact with a surface of the shaft around the whole of their inner radial surface and in continuous contact with a surface of the hub around the whole of their outer radial surface.Type: GrantFiled: May 17, 2004Date of Patent: September 5, 2006Assignee: Scania CV AB (publ)Inventor: Michael Gardin