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    HYDROMECHANISCHES GETRIEBE SOWIE LANDWIRTSCHAFTLICHE ARBEITSMASCHINE MIT EINEM SOLCHEN GETRIEBE
    1.
    发明公开
    HYDROMECHANISCHES GETRIEBE SOWIE LANDWIRTSCHAFTLICHE ARBEITSMASCHINE MIT EINEM SOLCHEN GETRIEBE 审中-公开

    公开(公告)号：EP4184037A1

    公开(公告)日：2023-05-24

    申请号：EP22196466.1

    申请日：2022-09-20

    申请人： CLAAS Industrietechnik GmbH

    发明人： Gohde, Thomas ,  Surmann, Sebastian ,  Stertkamp, Helge

    IPC分类号： F16H39/14 ,  F16H57/00

    摘要： Die vorliegende Erfindung betrifft ein hydromechanisches Getriebe (2) mit einem mechanischen Getriebe (3) und einem stufenlos verstellbaren hydrostatischen Getriebe (4), das mit dem mechanischen Getriebe (3) zusammenwirkt, sowie eine landwirtschaftliche Arbeitsmaschine (1) mit einem solchen hydromechanischen Getriebe (2). Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, dass die Geometrie der Kanäle (34) einer Lagerbrücke (22) und der Öffnungsquerschnitt der Öffnungen (24) der hydrostatischen Einheiten (13, 14) des hydrostatischen Getriebes (4), vorzugsweise mittels einer Computational Fluid Dynamics-, CFD-, Simulation, derart strömungsoptimiert ausgestaltet sind, dass in allen Betriebspunkten des hydromechanischen Getriebes (2) ein hydraulisches Fluid zur Übertragung einer Antriebsleistung in einem Übergangsbereich (37) von den Kanälen (34) der Lagerbrücke (22) zu den Öffnungen (24) der hydrostatischen Einheiten (13, 14) laminar strömt.

    LOAD CANCELLING HYDROSTATIC SYSTEM
    3.
    发明公开
    LOAD CANCELLING HYDROSTATIC SYSTEM 审中-公开

    公开(公告)号：EP3380754A1

    公开(公告)日：2018-10-03

    申请号：EP16867475.2

    申请日：2016-11-21

    申请人： Kinetics Drive Solutions Inc.

    发明人： DYCK, Gerald ,  CALDARELLA, Francesco ,  CZEPAK, John

    IPC分类号： F16H39/08 ,  F16H39/14 ,  F16H61/38

    CPC分类号： F16H61/448 ,  F16H39/14 ,  F16H39/42 ,  F16H61/423 ,  F16H61/433 ,  F16H2039/005

    摘要： A load cancelling hydrostatic system is disclosed comprising at least two hydrostatic modules coupled in parallel. Each hydrostatic module comprises input and output hydraulic piston drive units, each of which is coupled to its respective unit in the other module by common drive shafts. The pistons in a hydraulic piston drive unit of one module are coupled together with those in the respective unit of the other module with a timing angle of about 0°. The design advantageously cancels any axial imbalances and allows for use of radial drive shaft bearings which support an essentially purely radial load. In turn, greater power density and system efficiency can be obtained.

    Hydrostatic stepless transmission
    6.
    发明公开
    Hydrostatic stepless transmission 有权
    Stufenloses hydrostatisches Getriebe

    公开(公告)号：EP2653749A1

    公开(公告)日：2013-10-23

    申请号：EP13163863.7

    申请日：2013-04-16

    申请人： KANZAKI KOKYUKOKI MFG. CO., LTD.

    发明人： Iwaki, Koji ,  Matsuura, Jun ,  Murashima, Daisuke ,  Ebihara, Tomoyuki ,  Kamada, Minoru

    IPC分类号： F16H39/14

    CPC分类号： F16H39/00 ,  F16H39/14

    摘要： A hydrostatic stepless transmission ("HST") includes a center casing into which a plunger block of a hydraulic pump and a plunger block of a hydraulic motor are inserted. Plunger ports are open and aligned peripherally on an outer peripheral surface of each plunger block. A pair of main fluid passages of a closed fluid circuit fluidly connecting the hydraulic pump to the hydraulic motor are formed in opposite side portions of the center casing. Each of the main fluid passage includes peripheral grooves formed on an inner peripheral surface of the center casing so as to face the plunger ports of the respective plunger blocks, and includes an axial fluid duct formed to be interposed between the peripheral grooves. A bearing gap is provided between the inner peripheral surface of the center casing and the outer peripheral surface of the plunger block so as to cause a dynamic pressure action of fluid.

    摘要翻译： 静液压无级变速器（“HST”）包括中央壳体，液压泵的柱塞块和液压马达的柱塞块插入其中。 柱塞端口在每个柱塞块的外周表面上是外围开口和对准的。 将液压泵液压马达流体连接的封闭流体回路的一对主流体通道形成在中心壳体的相对侧部。 每个主流体通道包括形成在中心壳体的内周表面上的周向槽，以便与各个柱塞块的柱塞端口相对，并且包括形成为插入在周向槽之间的轴向流体管道。 在中心壳体的内周面和柱塞块的外周面之间设置有轴承间隙，以引起流体的动态压力作用。

    Hydrostatic continuously variable transmission
    9.
    发明公开
    Hydrostatic continuously variable transmission 有权
    Kontinuierlich变量，hydrostatisches Getriebe

    公开(公告)号：EP1975465A1

    公开(公告)日：2008-10-01

    申请号：EP08004089.2

    申请日：2008-03-05

    申请人： HONDA MOTOR CO., LTD.

    发明人： Nakano, Kenichi ,  Yoshida, Yoshihiro

    IPC分类号： F16H39/14

    CPC分类号： F16H39/14

    摘要： A hydrostatic continuously variable transmission (CVT) is configured by connecting a swash plate type plunger hydraulic pump (P) and a swash plate type plunger hydraulic motor (M) via a hydraulic closed circuit, an inclined angle of a swash plate (31) of the hydraulic motor (M) is variably controlled, and continuous shift control is executed. There is provided a lock-up mechanism (90) that closes the hydraulic closed circuit so as to make lockup executed when the quantity of oil that flows from the hydraulic pump (P) into the hydraulic motor (M) decreases according to variable control over the inclined angle of the swash plate (31) and the input rotation of the hydraulic pump (P) and the output rotation of the hydraulic motor (M) are substantially synchronous. The lock-up mechanism (90) is operated when lockup control oil pressure is applied and closes the hydraulic closed circuit, however, a lockup control oil passage (131,132,133) that supplies the lockup control oil pressure is provided with an opening (134a) opened and closed according to the inclination of the swash plate (31) and the opening (134a) is closed when the inclined angle of the swash plate (31) is in the vicinity of an angle in a upright condition.

    摘要翻译： 液压无级变速器（CVT）通过液压闭合回路（斜盘式柱塞液压马达）和旋转斜盘式柱塞液压马达（M）的斜盘（31）倾斜角度 可变地控制液压马达（M），并且执行连续换档控制。 提供了一种闭锁液压闭合回路的锁定机构（90），当从液压泵（P）流入液压马达（M）的油量根据变量控制而减小时，进行锁定 斜盘（31）的倾斜角度和液压泵（P）的输入旋转和液压马达（M）的输出旋转基本上是同步的。 当锁定控制油压被施加并且关闭液压闭合回路时，锁定机构（90）被操作，然而，提供锁定控制油压的锁定控制油通道（131,132,133）设置有打开的开口（134a） 并且当倾斜板（31）的倾斜角度处于垂直状态的角度附近时，根据斜盘（31）的倾斜闭合，并且开口（134a）关闭。