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    SERVO SYSTEM BOLTED ON DESIGN
    3.
    发明公开
    SERVO SYSTEM BOLTED ON DESIGN 审中-公开

    公开(公告)号：US20230304468A1

    公开(公告)日：2023-09-28

    申请号：US18041425

    申请日：2021-07-30

    申请人： Danfoss Power Solutions GmbH & Co. OHG

    发明人： Wilhelm GOELLNER ,  Andrej BABUSA ,  Heiko LAFFRENZEN

    IPC分类号： F03C1/40 ,  F04B1/324 ,  F04B49/00

    CPC分类号： F03C1/0686 ,  F04B1/324 ,  F04B49/002

    摘要： A hydrostatic servo assembly unit (1) for being arranged inside, outside or distant from a variable displacement hydrostatic unit (100) and for controlling the displacement of the variable displacement hydrostatic unit (100). The servo assembly unit (1) includes a servo housing (10) in which at least one servo piston (40) is arranged. The piston head (42) of the servo piston (40) can be pressurized such that the servo piston (40) can move linear relative to a servo cylinder (12) formed in the servo housing (10). The servo assembly unit (100) further includes a movable output element (49) protruding outside of the servo housing (10), which can be mechanically coupled to a displacement element (102) of a variable displacement hydrostatic unit (100).

    MOTOR SOFT SHIFT FEATURE
    4.
    发明申请
    MOTOR SOFT SHIFT FEATURE 审中-公开

    公开(公告)号：US20180291932A1

    公开(公告)日：2018-10-11

    申请号：US15481731

    申请日：2017-04-07

    申请人： Danfoss Power Solutions, Inc.

    发明人： Stephen Frantz

    IPC分类号： F15B13/02 ,  F15B11/04

    CPC分类号： F15B13/02 ,  B60T13/245 ,  F03C1/0668 ,  F03C1/0686 ,  F04B49/002 ,  F15B11/04 ,  F16H61/423 ,  F16H61/46 ,  F16H61/47

    摘要： A hydraulic unit includes a driving mechanism whose displacement volume is adjustable to two operational states by means of a position-able adjustment element. The adjustment element can be positioned by a servo piston of a servo unit into a first, initial position and a second, operative position. A first front face and a second front face of the servo piston, which are opposing each other, can be pressurized individually with pressurized hydraulic fluid in order to position the servo piston at either end position of a servo cylinder of the servo unit. The servo piston is of a stepped design thereby forming a ring-shaped damping surface opposing the first front face. In the servo cylinder a ring-shaped shoulder surface is formed opposing the damping surface such that a damping volume is formed in the servo cylinder by the damping surface, the shoulder surface and the servo cylinder.

    HYDRAULIC PUMP WITH DOUBLE DIRECTION OF ROTATION
    6.
    发明申请
    HYDRAULIC PUMP WITH DOUBLE DIRECTION OF ROTATION 审中-公开
    具有双向旋转的液压泵

    公开(公告)号：US20160025081A1

    公开(公告)日：2016-01-28

    申请号：US14782173

    申请日：2014-03-27

    申请人： HYDRO LEDUC

    发明人： François POREL

    IPC分类号： F04B1/30 ,  F04B1/22 ,  F04B1/32 ,  F04B1/20

    CPC分类号： F04B1/303 ,  F03C1/0636 ,  F03C1/0647 ,  F03C1/0655 ,  F03C1/0686 ,  F04B1/20 ,  F04B1/2021 ,  F04B1/2042 ,  F04B1/324

    摘要： A hydraulic pump with two rotation directions has axial pistons bearing against a swashplate, the pump with a head having two chambers to be connected to a high-pressure circuit and to a low-pressure circuit. A port plate in the form of a flat plate is arranged between a rotary barrel and the head and has two identical ports passing through the thickness of the flat plate. The port plate pivots about an axis to be able to occupy two angular positions according to the direction of rotation of the pump. The pump has a hydraulic-control device for controlling the angular position of the port plate and is able automatically to bring about a change in angular position of the port plate when the direction of rotation of the pump is reversed, under the effect of a pressure differential between the two chambers of the head.

    摘要翻译： 具有两个旋转方向的液压泵具有轴向活塞，该轴向活塞抵靠斜盘，所述泵具有头部，其具有两个连接到高压回路和低压回路的腔室。 平板形式的端口板布置在旋转筒和头部之间，并且具有穿过平板的厚度的两个相同的端口。 端口板绕轴线枢转，以能够根据泵的旋转方向占据两个角位置。 泵具有用于控制端口板的角位置的液压控制装置，并且当泵的旋转方向反转时，能够自动地导致端口板的角位置的变化，在压力的作用下 头部的两个腔室之间的差别。

    OPPOSED SWASH PLATE TYPE FLUID PRESSURE ROTATING MACHINE
    7.
    发明申请
    OPPOSED SWASH PLATE TYPE FLUID PRESSURE ROTATING MACHINE 审中-公开
    手动滑板式流体压力旋转机

    公开(公告)号：US20150240636A1

    公开(公告)日：2015-08-27

    申请号：US14431350

    申请日：2014-03-06

    申请人： KAYABA INDUSTRY CO., LTD.

    发明人： Hiroki Kato ,  Takeru Hosokawa

    IPC分类号： F01B3/00

    CPC分类号： F01B3/0038 ,  F01B3/0052 ,  F01B3/0073 ,  F03C1/0639 ,  F03C1/0686 ,  F04B1/22 ,  F04B1/324

    摘要： An opposed swash plate type fluid pressure rotating machine in which a first piston and a second piston projecting from opposite ends of a rotary cylinder block reciprocate in a cylinder, respectively following a first swash plate and a second swash plate includes a first tilt bearing for tiltably supporting the first swash plate, a first tilt driving piston for tilting the first swash plate in a direction intersecting with an axis of rotation of the cylinder block, a second tilt bearing for tiltably supporting the second swash plate, and a second tilt driving piston for tilting the second swash plate in a direction intersecting with the axis of rotation of the cylinder block.

    摘要翻译： 一种相对的斜盘式流体压力旋转机，其中第一活塞和从旋转气缸体的两端突出的第二活塞分别沿着第一斜盘和第二斜盘在气缸中往复运动，包括用于可倾斜的第一倾斜轴承 支撑第一斜盘，第一倾斜驱动活塞，用于在与气缸体的旋转轴线相交的方向上倾斜第一斜盘;第二倾斜轴承，用于可倾斜地支撑第二斜盘;以及第二倾斜驱动活塞， 在与气缸体的旋转轴线相交的方向上倾斜第二斜盘。

    VARIABLE DISPLACEMENT HYDRAULIC MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE
    8.
    发明申请
    VARIABLE DISPLACEMENT HYDRAULIC MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE 有权
    变速液压机械，特别适用于汽车

    公开(公告)号：US20130284011A1

    公开(公告)日：2013-10-31

    申请号：US13989681

    申请日：2011-11-16

    申请人： Pierre Gauthier

    发明人： Pierre Gauthier

    IPC分类号： F01B13/00

    CPC分类号： F01B13/00 ,  F03C1/0639 ,  F03C1/0686 ,  F04B1/22 ,  F04B1/324

    摘要： The invention relates to a variable displacement hydraulic machine, in particular for a motor vehicle, said hydraulic machine comprising a rotating cylinder (10) including a series of axial pistons (12) connected to a first plate (14) axially located on one side of said cylinder within a substantially transverse plane, the slope of which can be controlled, so as to form a first controllable displacement for said machine, wherein said machine is characterized in that the cylinder (10) further comprises a second series of axial pistons (22) connected to a second plate (24), the slope of which is also controllable, said plate being axially located, relative to the first plate (14), on the other side of said cylinder so as to form a second controllable displacement for said machine.

    摘要翻译： 本发明涉及一种特别用于机动车辆的可变容量液压机，所述液压机械包括旋转气缸（10），该旋转气缸包括一系列轴向活塞（12），该轴向活塞连接到轴向位于 所述气缸在基本横向的平面内，其斜度可被控制，以便形成用于所述机器的第一可控位移，其中所述机器的特征在于，气缸（10）还包括第二系列轴向活塞（22 ）连接到第二板（24），其倾斜度也是可控制的，所述板相对于第一板（14）在所述圆筒的另一侧轴向定位，以便形成用于所述 机。

    HYDRAULIC DUAL AXIAL PISTON MACHINE
    9.
    发明申请
    HYDRAULIC DUAL AXIAL PISTON MACHINE 有权
    液压双轴活塞机

    公开(公告)号：US20130209284A1

    公开(公告)日：2013-08-15

    申请号：US13808258

    申请日：2011-06-24

    申请人： Herbert Dreher

    发明人： Herbert Dreher

    IPC分类号： F04B49/12

    CPC分类号： F04B49/12 ,  F03C1/0686 ,  F04B1/32 ,  F04B49/002 ,  F04B49/08

    摘要： A hydraulic dual axial piston machine includes a first driving unit and a second driving unit arranged one behind the other in the direction of the axis of a drive shaft and oriented opposite each other. The first and second driving units each have a respective swashplate and single actuating piston. The first and second actuating pistons exert load on a pivot cradle in a functionally identical manner to increase or decrease a pivot angle of the respective swashplate. The first and second actuating pistons are spaced apart from a central plane of the swashplates which extends through the axis of the drive shaft such that dimensions of a housing in the direction of the pivot axes of the swashplates are minimally influenced.

    摘要翻译： 液压双轴向活塞机包括第一驱动单元和第二驱动单元，所述第一驱动单元和第二驱动单元在驱动轴的轴线方向上彼此相对并且彼此相对定向。 第一和第二驱动单元各自具有相应的斜盘和单个致动活塞。 第一和第二致动活塞以功能上相同的方式施加在枢轴支架上的负载，以增加或减小相应斜盘的枢转角度。 第一和第二致动活塞与旋转叶板的中心平面间隔开，所述旋转叶片的中心平面延伸穿过驱动轴的轴线，使得壳体在旋转叶片的枢转轴线方向上的尺寸受到最小的影响。

    Electrically-Operated Hydraulic Actuator Unit and Hydraulic Four-Wheel-Drive Work Vehicle
    10.
    发明申请
    Electrically-Operated Hydraulic Actuator Unit and Hydraulic Four-Wheel-Drive Work Vehicle 有权
    电动液压执行器和液压四轮驱动工作车

    公开(公告)号：US20130133970A1

    公开(公告)日：2013-05-30

    申请号：US13814108

    申请日：2011-07-21

    申请人： Minoru Kamada ,  Nobuhiko Ichinose

    发明人： Minoru Kamada ,  Nobuhiko Ichinose

    IPC分类号： B60K23/08 ,  F16H61/425 ,  F15B9/04

    CPC分类号： B60K23/08 ,  B60Y2200/223 ,  F03C1/0636 ,  F03C1/0686 ,  F04B1/324 ,  F15B9/04 ,  F16H61/425

    摘要： Provided an electrically-operated hydraulic actuator unit that includes an electrically-operated motor controlled by a control apparatus and actuating a volume adjusting mechanism through driving-side and driven-side arms, and a clutch mechanism in which the driven-side arm presses a contact member against a clutch case so that the driven-side arm is locked when a force from the volume adjusting mechanism is applied to the driven-side arm. The control apparatus can set duties of first to fourth drive signals to be output to the electrically-operated motor in a neutral-side start period, a neutral-side ordinary actuation period, a higher-volume-side start period and a higher-volume-side ordinary actuation period. The duties of the first and fourth drive signals are larger than that of the second drive signal, the duty of the third drive signal is larger than that of the fourth drive signal, and an integrated ON-time of the third drive signal is larger than that of the first drive signal.

    摘要翻译： 提供一种电动液压致动器单元，其包括由控制装置控制的电动马达，并且通过驱动侧和从动臂驱动音量调节机构，以及离合器机构，其中从动侧臂压接触点 抵靠离合器壳体的构件，使得当来自音量调节机构的力被施加到从动侧臂时，从动侧臂被锁定。 控制装置可以在中立侧起动期间，中立侧通常动作期间，较大容量侧起动期间和较高转速时设定输出到电动马达的第一至第四驱动信号的作用 在正常的启动周期。 第一驱动信号和第四驱动信号的功率大于第二驱动信号的功率，第三驱动信号的占空比大于第四驱动信号的占空比，并且第三驱动信号的积分导通时间大于 第一个驱动信号。