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公开(公告)号：US11859695B2
公开(公告)日：2024-01-02
申请号：US17611008
申请日：2020-05-13
发明人： Jannick De Landtsheere , Johan Gerard Michel Joseph Vancoillie , Maarten Debrouwere , Didier Genouw
CPC分类号： F16H3/091 , F16H37/0806 , F16H2003/0822 , F16H2200/006 , F16H2200/0082
摘要： Disclosed is an 8-speed gearbox for a dual clutch transmission, with a particular gear arrangement of the gears on the countershaft, wherein the speed or reverse gear of a gear pair that is a permanently rotationally and axially fixed gear is the radially smaller of the gear pair. One or two cluster gears may be provided, each cluster gear having two gears axially paired attached to the countershaft by a shrink fit connection.
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公开(公告)号：US11834998B2
公开(公告)日：2023-12-05
申请号：US16388548
申请日：2019-04-18
CPC分类号： F02C7/32 , F16H3/08 , F16H61/0403 , F05D2220/323 , F05D2260/4031
摘要： An engine system can include an engine having an engine shaft and a transmission that can include an input shaft connected to the engine shaft to rotate with the engine shaft, one or more rotating gears configured to rotate relative to the input shaft, and a synchromesh configured to selectively engage each of the one or more rotating gears to the input shaft. Transmission can include a second shaft comprising a clutch configured to selectively engage the one or more rotating gears to the second shaft to cause the second shaft to rotate with the one or more rotating gears.
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公开(公告)号：US11794574B2
公开(公告)日：2023-10-24
申请号：US17835533
申请日：2022-06-08
发明人： Anders Hedman , Johan Folkesson
CPC分类号： B60K17/08 , B60K1/02 , F16H37/065 , F16H2003/0803 , F16H2003/0826 , F16H2057/02034 , F16H2200/0021
摘要： A transmission comprises a first input shaft, a second input shaft, an output shaft, and an intermediate shaft. A first input shaft gearwheel, a second input shaft gearwheel, a first intermediate shaft gearwheel, a second intermediate shaft gearwheel, a first output shaft gearwheel drivingly connected to the first input shaft gearwheel, a second output shaft gearwheel in meshing engagement with the first intermediate shaft gearwheel, and a third output shaft gearwheel in meshing engagement with the second intermediate shaft gearwheel, are provided. A first shifting device is selectively settable to:
a first shifting device first state, rotationally connecting the first output shaft gearwheel to the output shaft,
a first shifting device neutral state, and
a first shifting device second state, rotationally connecting the first output shaft gearwheel to the second output shaft gearwheel,
A second shifting device is selectively settable to:
a second shifting device first state, rotationally connecting the second output shaft gearwheel to the output shaft,
a second shifting device neutral state, and
a second shifting device second state, rotationally connecting the third output shaft gearwheel to the output shaft.-
公开(公告)号：US11773950B2
公开(公告)日：2023-10-03
申请号：US16618943
申请日：2019-09-02
申请人： Kubota Corporation
发明人： Yasuyuki Oka
CPC分类号： F16H37/043 , F16H3/093 , F16H63/345 , F16H63/36 , F16H2003/0822 , F16H2037/044 , F16H2037/045 , F16H2200/0004 , F16H2200/0026 , F16H2312/06 , F16H2312/09
摘要： 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. A creep speed changing apparatus includes: a first power transmission gear that is provided on an output shaft gear of a gear transmission; a first deceleration gear that is supported by a relay shaft so as to be rotatable relative to the relay shaft, in a state of meshing with the first power transmission gear; a second power transmission gear that is provided on the first deceleration gear; a second deceleration gear that is supported by an output shaft of the gear transmission so as to be rotatable relative to the output shaft, in a state of meshing with the second power transmission gear; a third power transmission gear that is provided on the second deceleration gear; a third deceleration gear that is supported by the relay shaft so as not to be rotatable relative to the relay shaft, in a state of meshing with the third power transmission gear; and a pair of deceleration gears that are provided so as to span the relay shaft and the output shaft, and decelerate power from the relay shaft and transmit the resulting power to the output shaft.
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公开(公告)号：US11739814B2
公开(公告)日：2023-08-29
申请号：US16762137
申请日：2018-11-06
发明人： Garth H. Bulgrien , Enrico Sedoni
CPC分类号： F16H3/006 , F16H3/085 , F16H3/093 , F16H37/043 , F16H61/688 , F16H2003/008 , F16H2003/0822 , F16H2037/045 , F16H2200/0078
摘要： A dual-clutch transmission includes an odd gears clutch, an odd gears shaft supporting at least two odd-numbered rotary gears, an even gears clutch, and an even gears shaft supporting at least two even-numbered rotary gears. A driven rotary shaft is selectively connectable to one respective said odd- or even-numbered gear at a time. The dual-clutch transmission includes first and second range selection gears to transfer drive from the driven rotary shaft to an output shaft so as selectively to permit selection of at least a first range transmission ratio or a second range transmission ratio. The dual-clutch transmission further includes a first bypass drive line to drive engagement of at least two mutually engaged bypass rotary gears with the output shaft, giving rise to a first intermediate transmission ratio.
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公开(公告)号：US11592083B2
公开(公告)日：2023-02-28
申请号：US16807985
申请日：2020-03-03
申请人： DEERE & COMPANY
发明人： David Müller , Rainer Gugel , Frank Buhrke , Michael Schumann
摘要： A method is provided for configuring different numbers of gearshift variants in a stepped powershift transmission for an agricultural working machine. The method includes providing a transmission unit, a front-mounted range unit, a gear reduction unit, a rear-mounted range unit, a housing, a drive shaft, a lay shaft, an output shaft, and a hydraulic control arrangement. The same transmission unit is used for all the numbers of gearshift variants while an identical spatial orientation of the shafts is maintained for all the numbers of gearshift variants. The method further includes adapting exclusively the gearshift variants by varying the front-mounted range unit or the rear-mounted range unit.
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公开(公告)号：US20220341492A1
公开(公告)日：2022-10-27
申请号：US17616777
申请日：2020-03-19
发明人： Shinji IKEYA
摘要： A transmission comprises a moving mechanism to generate axial force to move the one rotary member and releases the axial force according to generation of coasting torque, an urging mechanism to urge the one rotary member with force being poorer than the axial force being generated by the moving mechanism so that the meshing teeth mesh, the contact body of the urging mechanism arranged in a supporting hole formed on the torque transmission member in a radial direction, and an urging and converting part provided to receive the contact body being urged in the radial direction by the urging functional part and convert a direction of the urging to the axial direction to urge the axial movement of the one rotary member.
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公开(公告)号：US11420513B2
公开(公告)日：2022-08-23
申请号：US16343633
申请日：2017-10-24
申请人： AUDI AG
发明人： Steffen Hummel
摘要： A hybrid drivetrain for a hybrid-driven vehicle, having a transmission, which can be shifted by shifting elements into different transmission steps, and which is connectable via an internal combustion engine shaft to an internal combustion engine, via an electric machine shaft to an electric machine, and via an output shaft to at least one vehicle axis. The internal combustion engine shaft and a pinion shaft, which can be connected with respect to drive to the output shaft, are connectable via spur gearwheel sets, which can be shifted by means of shifting elements and which each form wheel levels, of which at least one hybrid wheel level is additionally connectable to the electric machine shaft.
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公开(公告)号：US11359719B2
公开(公告)日：2022-06-14
申请号：US14603459
申请日：2015-01-23
发明人： Ulrich Ohnemus , Fritz Pobitzer
摘要： Shifting device for shifting a transmission, having a first group of shift elements and a second group of shift elements, a selector shaft, which is arranged in such a way that it can be moved in translation along a longitudinal axis and rotated about the longitudinal axis, wherein it is possible, by moving the selector shaft into one of a plurality of possible translational positions, to select at least one shift element of the first group and at least one shift element of the second group and, by rotating the selector shaft, to actuate the selected shift elements. The at least one selected shift element of the first group can be actuated in phase or with an overlapping phase displacement or an offset phase displacement with respect to the at least one selected shift element of the second group.
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公开(公告)号：US11346409B2
公开(公告)日：2022-05-31
申请号：US17362118
申请日：2021-06-29
IPC分类号： F16D48/06 , F16D21/04 , F16H3/091 , F16D41/14 , F16H63/30 , H04L41/0604 , H04L41/0631 , H04L41/0816 , H04L45/48 , H04L61/5014 , F16H3/08 , F16D11/10 , F16H63/18
摘要： A vehicle transmission includes a shaft; speed-changing gears; switching mechanisms; and a shifting mechanism. The shifting mechanism is provided with a double-meshing preventing mechanism configured to switch between a one-way state in which the switching mechanisms are hindered from moving in a downshift direction and allowed to move in an upshift direction and a free state in which the switching mechanisms are allowed to move in both the downshift direction and the upshift direction.
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