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    DUAL-CLUTCH TRANSMISSION
    1.
    发明申请
    DUAL-CLUTCH TRANSMISSION 有权

    公开(公告)号：US20250012343A1

    公开(公告)日：2025-01-09

    申请号：US18710071

    申请日：2022-11-29

    Applicant: BRP-ROTAX GMBH & CO. KG

    Inventor： Martin STOCKINGER ,  Stefan KRENN ,  Andreas MATHEIS ,  Thomas GADERMAYR ,  Johannes WURM

    IPC: F16H3/091 ,  F16H3/093 ,  F16H57/02 ,  F16H57/021 ,  F16H57/027 ,  F16H57/04 ,  F16H61/688 ,  F16H63/30

    Abstract: A transmission for a vehicle (20) includes: an input shaft (122) for connection to an internal combustion engine (52) of the vehicle (20); a gear (605) shaft (122, 199, 400A, 400B) selectively operatively connected to the input shaft (122); a clutch selectively actuatable to transmit motion between the input shaft (122) and the gear (605) shaft (122, 199, 400A, 400B) for selectively operating the transmission in one of a plurality of transmission gears (600); an output shaft (740) operatively connected to the gear (605) shaft (122, 199, 400A, 400B) at least in part by the transmission gears (600); and a transmission housing (102) at least partly enclosing the input shaft (122), the transmission gears (600), the clutch and the output shaft (740). An internal dividing wall (506, 510) defines first and second chambers (350A, 502), the internal dividing wall (506, 510) being configured to limit flow of transmission fluid between the first and second chambers (350A, 502). The input shaft (122) and the clutch are disposed within the first chamber (350A, 350B, 508). The transmission gears (600) and the output shaft (740) are disposed within the second chamber (350A, 350B, 508).

    Powershift transmission of a motor vehicle
    4.
    发明授权
    Powershift transmission of a motor vehicle 有权

    公开(公告)号：US12000461B2

    公开(公告)日：2024-06-04

    申请号：US17882892

    申请日：2022-08-08

    Applicant: ZF Friedrichshafen AG

    Inventor： Michael Haas ,  Martin Dankesreiter ,  Anton Eder ,  Thomas Pauli ,  Thomas Spießl ,  Thomas Oberbuchner ,  Stefan Igl ,  Simone Landshuter

    IPC: F16H3/00 ,  F16H3/093

    CPC classification number: F16H3/006 ,  F16H2003/0931

    Abstract: A powershift transmission of a motor vehicle has a split group with a plurality of powershift stages. An input shaft can be rotatably driven by a drive shaft of a motorized drive and transmits rotational movement in a stepped-up manner to an output shaft of the split group corresponding to one of several powershiftable stage transmissions. The powershiftable stage transmissions can be rotatably driven in a stepped-up manner by the output shaft of the split group via an intermediate group located therebetween, and via an input shaft of a synchromesh transmission group having a plurality of gear stages. A vehicle axle transmission can be rotatably driven by the output shaft of the synchromesh transmission group. The intermediate group has a multiple powershift intermediate transmission, in which each switching position the input shaft of the synchromesh transmission group can be rotatably driven by means of an associated transmission.

    Transmission for a vehicle
    5.
    发明公开
    Transmission for a vehicle 审中-公开

    公开(公告)号：US20240060549A1

    公开(公告)日：2024-02-22

    申请号：US18235095

    申请日：2023-08-17

    Applicant: Volvo Truck Corporation

    Inventor： Anders Hedman

    IPC: F16H3/093

    CPC classification number: F16H3/093 ,  F16H2200/0086

    Abstract: A transmission for a vehicle, including an input shaft, a main shaft, and a countershaft, the main shaft being coaxial with the input shaft and the countershaft being parallel therewith, first and second primary gear planes arranged for torque transfer between the input shaft and the countershaft, at least one secondary gear plane arranged for torque transfer between the countershaft and the main shaft. The transmission further includes a reverse shaft arranged in parallel with the main shaft, wherein the first primary gear plane comprises a first reverse shaft gearwheel arranged on the reverse shaft, and wherein the second primary gear plane comprises a second reverse shaft gearwheel arranged on the reverse shaft, the second reverse shaft gearwheel being selectively rotationally connectable to the first reverse shaft gearwheel so as to engage a reverse gear of the transmission.

    TRANSMISSION FOR A VEHICLE
    6.
    发明公开
    TRANSMISSION FOR A VEHICLE 审中-公开

    公开(公告)号：US20240060548A1

    公开(公告)日：2024-02-22

    申请号：US18212254

    申请日：2023-06-21

    Applicant: VOLVO TRUCK CORPORATION

    Inventor： Anders HEDMAN

    IPC: F16H3/093 ,  F16H37/04

    CPC classification number: F16H3/093 ,  F16H37/043 ,  F16H2037/045 ,  F16H2003/0938

    Abstract: A transmission for a vehicle includes: an input shaft, a main shaft, and a countershaft, the main shaft being coaxial with the input shaft and the countershaft being parallel therewith, first and second primary gear planes arranged for torque transfer between the input shaft and the countershaft, and at least one secondary gear plane arranged for torque transfer between the countershaft and the main shaft. The transmission further includes a crawler shaft arranged in parallel with the main shaft, wherein the first primary gear plane comprises a first crawler shaft gearwheel arranged on the crawler shaft, and wherein the second primary gear plane comprises a second crawler shaft gearwheel arranged on the crawler shaft, the second crawler shaft gearwheel being selectively rotationally connectable to the first crawler shaft gearwheel so as to engage a crawler gear of the transmission.

    Tractor, travel power transmission apparatus for a tractor, and tractor provided with the travel power transmission apparatus for a tractor
    8.
    发明授权
    Tractor, travel power transmission apparatus for a tractor, and tractor provided with the travel power transmission apparatus for a tractor 有权

    公开(公告)号：US11773950B2

    公开(公告)日：2023-10-03

    申请号：US16618943

    申请日：2019-09-02

    Applicant: Kubota Corporation

    Inventor： Yasuyuki Oka

    IPC: F16H37/00 ,  F16H37/04 ,  F16H3/093 ,  F16H63/34 ,  F16H63/36 ,  F16H3/08

    CPC classification number: F16H37/043 ,  F16H3/093 ,  F16H63/345 ,  F16H63/36 ,  F16H2003/0822 ,  F16H2037/044 ,  F16H2037/045 ,  F16H2200/0004 ,  F16H2200/0026 ,  F16H2312/06 ,  F16H2312/09

    Abstract: 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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