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    HYDRAULIC CIRCUIT INCLUDING A HYDRAULIC MACHINE DRAIN PROVIDED WITH A FLOW-CONTROL MEANS AND FLUID-TREATMENT FUNCTIONS
    12.
    发明申请
    HYDRAULIC CIRCUIT INCLUDING A HYDRAULIC MACHINE DRAIN PROVIDED WITH A FLOW-CONTROL MEANS AND FLUID-TREATMENT FUNCTIONS 审中-公开

    公开(公告)号：US20170328469A1

    公开(公告)日：2017-11-16

    申请号：US15528439

    申请日：2015-11-12

    申请人： TECHNOBOOST

    发明人： Arnaud Le Dren ,  Andres Yarce

    IPC分类号： F16H61/4035 ,  F16H61/4096 ,  F16H61/4104 ,  F16H61/4131

    CPC分类号： F16H61/4035 ,  F16H61/4096 ,  F16H61/4104 ,  F16H61/4131

    摘要： The invention relates to a hydraulic circuit provided with at least one hydraulic power machine (2, 4) connected to a low-pressure circuit (6) and to a high-pressure circuit (10) transmitting said power, wherein the machine is provided with a drain which allows internal leaks in the casing thereof to flow towards a low-pressure accumulator (8) or a vessel at atmospheric pressure, said circuit comprising an intake pipe (30) connecting the low-pressure circuit (6) to the casing of the machine, and an outlet pipe (36) forming the drain receiving the flow from the intake pipe in order to guide same towards the vessel (8), including a heat exchanger (42) and a filter (44) forming the fluid treatment elements for the entire hydraulic circuit, said circuit also comprising a means for monitoring the flow (40) in the intake and outlet pipes.

    Valve
    13.
    发明授权
    Valve 有权
    阀

    公开(公告)号：US09410631B1

    公开(公告)日：2016-08-09

    申请号：US14197892

    申请日：2014-03-05

    申请人： Hydro-Gear Limited Partnership

    发明人： Thomas J. Langenfeld

    IPC分类号： F16K11/065 ,  G05D11/02 ,  F16H61/4104 ,  F16K17/18

    CPC分类号： F16K11/065 ,  F16H61/4104 ,  F16K11/048 ,  F16K11/105 ,  F16K17/18 ,  G05D11/02 ,  Y10T137/2521 ,  Y10T137/2564 ,  Y10T137/2567

    摘要： A valve for use between a first fluid side and a second fluid side is disclosed herein. The valve comprises a pair of subassemblies, each one slidable between a closed position and an open position. Each subassembly comprises a first component comprising a first component main body, a first component first end and a first component second end opposite the first component first end. A first component first extension is formed on each first component first end, the first component first extension comprising a diameter that is less than the diameter of the first component main body. Hydraulic pressure causes one subassembly to slide to its closed position, and causes it to engage the second subassembly, sliding the second subassembly to its open position.

    摘要翻译： 本文公开了在第一流体侧和第二流体侧之间使用的阀。 阀包括一对子组件，每个子组件可在关闭位置和打开位置之间滑动。 每个子组件包括第一部件，其包括第一部件主体，第一部件第一端部和与第一部件第一端部相对的第一部件第二端部。 第一部件第一延伸部形成在每个第一部件第一端上，第一部件第一延伸部包括直径小于第一部件主体的直径。 液压使一个子组件滑动至其关闭位置，并使其接合第二子组件，将第二组件滑动到其打开位置。

    Apparatus for controlling variable delivery hydraulic motor upon hydraulically operated vehicle
    14.
    发明授权
    Apparatus for controlling variable delivery hydraulic motor upon hydraulically operated vehicle 失效
    用于控制液压车辆上可变输送液压马达的装置

    公开(公告)号：US5092153A

    公开(公告)日：1992-03-03

    申请号：US499447

    申请日：1990-06-25

    申请人： Masanori Ikari

    发明人： Masanori Ikari

    IPC分类号： B60K17/10 ,  F16H61/4104 ,  F16H61/448 ,  F16H61/456

    CPC分类号： F16H61/47 ,  F16H61/423 ,  F16H61/46

    摘要： There is disclosed an apparatus which controls a variable delivery motor installed on a hydraulically operated vehicle in such a way that the maximum vehicle speed can be continuously varied without sacrificing the performance of the nonstep variable speed, hydraulically operated vehicle. The apparatus includes a hydraulic pump (1) connected with the variable delivery hydraulic motor (2) by main circuits (24, 25), a cylinder (31) that controls the motor (2), a control pump (3) delivering pilot pressure, and a vehicle speed limiter (122). Higher pressure is produced inside the main circuits. The limiter limits the minimum capacity of the motor (2), depending on the higher pressure and also on the pilot pressure acting on the cylinder (31).

    摘要翻译： PCT No.PCT / JP89 / 01147 Sec。 371日期：1990年6月25日 102（e）日期1990年6月25日PCT提交1989年11月8日PCT公布。 出版物WO90 / 05254 日期为1990年5月17日。公开了一种控制安装在液压操作车辆上的可变输送马达的设备，使得最大车速可以连续变化而不牺牲非步进可变速度的液压操作车辆的性能。 该装置包括通过主回路（24,25）与可变输送液压马达（2）连接的液压泵（1），控制马达（2）的气缸（31），输出先导压力的控制泵 ，以及车速限制器（122）。 主电路内部产生较高的压力。 限制器根据较高的压力以及作用在气缸（31）上的先导压力来限制电动机（2）的最小容量。

    Hydrostatic drive arrangement
    15.
    发明授权
    Hydrostatic drive arrangement 失效
    静液压驱动装置

    公开(公告)号：US4583371A

    公开(公告)日：1986-04-22

    申请号：US713096

    申请日：1985-03-18

    申请人： Kenzo Hoashi ,  Koichi Morita ,  Kazuo Matsuda

    发明人： Kenzo Hoashi ,  Koichi Morita ,  Kazuo Matsuda

    IPC分类号： F16H61/40 ,  F16H61/4104 ,  F16H61/456 ,  F15B11/22

    CPC分类号： F16H61/456 ,  F16H61/40 ,  F16H61/4104

    摘要： A hydrostatic drive arrangement for a vehicle providing synchronized rotation of a pair of output drive shafts including a pair of transmissions each having a closed loop hydraulic circuit hydraulically interconnecting a variable displacement pump and a hydraulic motor, and a pressure responsive hydraulic synchronizing valve disposed between the hydraulic circuits and normally open to permit interflow of fluid between the hydraulic circuits with the valve being responsive to fluid pressure in one of the hydraulic circuits to restrict flow therethrough when the fluid pressure in the one hydraulic circuit exceeds a predetermined value.

    摘要翻译： 一种用于车辆的静液压驱动装置，其提供一对输出驱动轴的同步旋转，所述输出驱动轴包括一对变速器，每对变速器具有液压互连可变排量泵和液压马达的闭环液压回路，以及设置在 液压回路并且通常打开以允许液压回路之间的流体相互交流，其中阀响应于其中一个液压回路中的流体压力，以在一个液压回路中的流体压力超过预定值时限制流过其中。

    COOLING SCHEME FOR HYDROSTATIC TRANSMISSION
    17.
    发明公开
    COOLING SCHEME FOR HYDROSTATIC TRANSMISSION 审中-公开

    公开(公告)号：US20230243419A1

    公开(公告)日：2023-08-03

    申请号：US17590273

    申请日：2022-02-01

    申请人： Caterpillar Inc.

    发明人： Christopher W. PRUESS ,  Aaron B. CRABTREE ,  Jeremiah C. JOHNSON

    IPC分类号： F16H61/4104 ,  F16H61/4165 ,  F16H61/4139

    CPC分类号： F16H61/4104 ,  F16H61/4165 ,  F16H61/4139

    摘要： A system including a gearbox and a hydraulic machine connected by a working fluid circuit. The gearbox including a gearbox housing having first and second gearbox fluid passages integrated into the gearbox housing. The hydraulic machine including a case having first and second hydraulic machine fluid passages, the first and second hydraulic machine fluid passages being integrated into the case. A set of rotating elements enclosed within the case. The first gearbox fluid passage and the first hydraulic machine fluid passage align to form a feed passage to conduct fluid at a first pressure from a first source to the set of rotating elements. The second gearbox fluid passage and the second hydraulic machine fluid passage align to form a charge passage to conduct fluid at a second pressure from a second source to the set of rotating elements. The first pressure being less than the second pressure.

    Transmission system
    18.
    发明授权
    Transmission system 有权

    公开(公告)号：US10926631B2

    公开(公告)日：2021-02-23

    申请号：US16072855

    申请日：2017-01-24

    申请人： CNH Industrial America LLC

    发明人： Alessandro Benevelli ,  Riccardo Morselli

    IPC分类号： F16H61/4061 ,  F16H61/4078 ,  F16H61/4104 ,  F16H61/4139 ,  B60K17/28 ,  F16H61/47 ,  F16H47/04

    摘要： A transmission system includes a power take-off for driving an implement and a hydrostatic unit for transmitting power from the engine to the power take-off. The hydrostatic unit includes a first hydraulic power unit having a first connection line and a second connection line, and a second hydraulic power unit having a first connection line and a second connection line. The hydrostatic unit also includes a valve for connecting the first hydraulic power unit and the second hydraulic power unit, the valve being positionable at least in a first position a first position and in a second position.

    Flushing circuit for hydraulic cylinder drive circuit
    20.
    发明授权
    Flushing circuit for hydraulic cylinder drive circuit 有权
    液压缸驱动电路冲洗回路

    公开(公告)号：US09429231B2

    公开(公告)日：2016-08-30

    申请号：US14387121

    申请日：2012-03-22

    申请人： Yukio Uenishi

    发明人： Yukio Uenishi

    IPC分类号： F15B13/02 ,  F16H61/4104 ,  F15B21/00 ,  F16H61/4043 ,  F15B21/04 ,  F15B13/08

    CPC分类号： F16H61/4104 ,  F15B13/081 ,  F15B21/005 ,  F15B21/041 ,  F15B2211/3058 ,  F15B2211/3138 ,  F15B2211/40515 ,  F15B2211/40584 ,  F15B2211/411 ,  F15B2211/41527 ,  F15B2211/41572 ,  F15B2211/41581 ,  F15B2211/611 ,  F16H61/4043

    摘要： The present invention provides a flushing circuit for a hydraulic cylinder drive circuit, by which the flushing of the circuit is conducted while protecting precision apparatuses of a control valve unit, because the flushing of a reciprocating hydraulic cylinder and its drive circuit is conducted while bypassing the control valve unit.In a hydraulic oil supply/discharge circuit connecting a tank of hydraulic oil, a hydraulic pump generating pressurized hydraulic oil, and a hydraulic cylinder with one another, a control valve unit in which at least a direction switching valve is provided in the vicinity of the hydraulic pump and the oil tank and a multifunction valve having a bypass circuit in the vicinity of the hydraulic cylinder are provided, and a bypass circuit bypassing the control valve unit is provided to branch from a hydraulic oil supply/discharge circuit between the multifunction valve and the control valve unit. At the time of the flushing of the hydraulic cylinder and the hydraulic oil supply/discharge circuit, contaminated hydraulic oil returns the tank without passing through the control valve unit, with the result that the control valve unit is protected from the contaminated hydraulic oil.

    摘要翻译： 本发明提供了一种用于液压缸驱动电路的冲洗回路，由此在保持往复运动的液压缸及其驱动电路的冲洗的同时绕过所述液压缸驱动电路，同时在保护控制阀单元的精密装置的同时进行冲洗。 控制阀单元。 在连接液压油箱的液压油供给/排出回路，产生加压液压油的液压泵和液压缸相互连接的控制阀单元中，至少在方向切换阀附近设置有方向切换阀 设置液压泵和油箱以及在液压缸附近具有旁通回路的多功能阀，并且设置旁路控制阀单元的旁路回路，以从多功能阀和多功能阀与液压缸的液压供油/排出回路分支 控制阀单元。 在冲洗液压缸和液压油供应​​/排出回路时，受污染的液压油不会通过控制阀单元返回油箱，从而使控制阀单元受到污染的液压油的保护。