HYDRAULIC SYSTEM
    2.
    发明申请
    HYDRAULIC SYSTEM 审中-公开
    液压系统

    公开(公告)号:US20120043154A1

    公开(公告)日:2012-02-23

    申请号:US13213289

    申请日:2011-08-19

    IPC分类号: B62D5/06

    摘要: A hydraulic system for a mobile working machine includes a hydraulic pump, a steering valve, a steering actuator controlled by the steering valve, a first hydraulic line which extends between the hydraulic pump and the steering valve, and a hydraulic storage unit which is connected with the first hydraulic line via a second hydraulic line). So as to optimize a pressure state for the hydraulic system, a throttle connected in parallel with a check valve is located in the second hydraulic line. The check valve permits one-way fluid flow in a direction away from the hydraulic storage unit.

    摘要翻译: 一种用于移动式工作机械的液压系统,包括液压泵,转向阀,由转向阀控制的转向致动器,在液压泵和转向阀之间延伸的第一液压管路,以及液压存储单元,其与 通过第二液压管线的第一液压管路)。 为了优化液压系统的压力状态,与止回阀并联连接的节气门位于第二液压管路中。 止回阀允许单向流体沿远离液压存储单元的方向流动。

    Suspension device
    3.
    发明授权
    Suspension device 失效
    悬挂装置

    公开(公告)号:US07251936B2

    公开(公告)日:2007-08-07

    申请号:US10540010

    申请日:2004-01-29

    IPC分类号: F16D32/01

    摘要: A suspension device is for at least one drive part (10) that is to be cushioned. The drive part can be connected to an accumulator device (12) by a first valve unit (28) and to a tank connection (46) by a second valve unit (34) to transport fluid. The device is provided with a pressure compensation device (50), which when actuated compares the respective prevailing pressures in the drive part (10) and the accumulator device (12) to generate a common pressure level. This comparison permits the pressure level to be rapidly compensated in advance when the actual suspension is enabled in the form of the accumulator device, in such a way that the suspension pressure employed exactly matches the pressure of the respective drive part in the form of a hydraulic or working cylinder that prevails in the later as a result of the preceding load actuation operations.

    摘要翻译: 悬挂装置用于要被缓冲的至少一个驱动部件(10)。 驱动部分可以通过第一阀单元(28)连接到蓄能器装置(12),并且可以通过第二阀单元(34)连接到罐连接件(46)以输送流体。 该装置设置有压力补偿装置(50),当被致动时,比较驱动部分(10)和蓄能装置(12)中各自的主要压力以产生公共压力水平。 该比较允许当以蓄能器装置的形式实现实际悬架时,预先快速地补偿压力水平,使得所采用的悬架压力与液压形式的相应驱动部件的压力精确匹配 或作为前一次负载致动操作的结果而在之后的工作缸。

    Suspension device
    4.
    发明申请
    Suspension device 失效
    悬挂装置

    公开(公告)号:US20060102241A1

    公开(公告)日:2006-05-18

    申请号:US10540010

    申请日:2004-01-29

    IPC分类号: F16L55/04

    摘要: The invention relates to a suspension device for at least one drive part (10) that is to be cushioned. Said part can be connected to an accumulator device (12) by means of a first valve unit (28) and to a tank connection (46) by means of a second valve unit (34) in order to transport fluid. The device is provided with a pressure compensation device (50), which when actuated compares the respective prevailing pressures in the drive part (10) and the accumulator device (12) in order to generate a common pressure level. This permits the pressure level to be rapidly compensated in advance when the actual suspension is enabled in the form of the accumulator device, in such a way that the suspension pressure employed exactly matches the pressure of the respective drive part in the form of a hydraulic or working cylinder that prevails in the latter as a result of the preceding load actuation operations.

    摘要翻译: 本发明涉及一种用于待缓冲的至少一个驱动部件(10)的悬挂装置。 所述部件可以借助于第一阀单元(28)连接到蓄能器装置(12)并且借助于第二阀单元(34)连接到罐连接件(46),以便输送流体。 该装置设置有压力补偿装置(50),当被致动时,比较驱动部件(10)和蓄能装置(12)中的相应的主要压力以产生公共压力水平。 这允许在实际的悬架以蓄能器装置的形式启用时提前快速地补偿压力水平,使得所采用的悬架压力与液压或液压的形式的相应驱动部分的压力精确匹配 由于前面的负载启动操作,在后者中占据优势的工作气缸。

    Flow control apparatus for construction heavy equipment
    5.
    发明授权
    Flow control apparatus for construction heavy equipment 有权
    用于施工重型设备的流量控制装置

    公开(公告)号:US07017470B2

    公开(公告)日:2006-03-28

    申请号:US10869403

    申请日:2004-06-16

    申请人: Hae Kyun Cheong

    发明人: Hae Kyun Cheong

    IPC分类号: F15B13/04

    摘要: Disclosed is a flow control apparatus for construction heavy equipment capable of maintaining constant set flow rate regardless of changes in load pressure and pump pressure. The flow control apparatus is composed of a control valve, a flow control valve, and a load check valve. The control valve has a parallel passage, a housing provided with a first load passage and a second load passage, and a control spool provided to be movable in the housing. The flow control valve having a logic check valve provided to be openable between the first load passage and the parallel passage, and a logic control valve controlling a flow rate supplied to a back pressure chamber of the logic check valve. The load check valve is provided between the second load passage and the parallel passage to restrict backflow from the second hydraulic cylinder.

    摘要翻译: 公开了一种用于施工重型设备的流量控制装置,其能够保持恒定的设定流量,而与负载压力和泵压力的变化无关。 流量控制装置由控制阀,流量控制阀和负载止回阀构成。 控制阀具有平行的通道,设置有第一负载通道和第二负载通道的壳体以及设置成能够在壳体中移动的控制阀芯。 所述流量控制阀具有设置成能够在所述第一负载通路和所述并列通路之间开启的逻辑止回阀,以及逻辑控制阀,其控制供给所述逻辑止回阀的背压室的流量。 负载止回阀设置在第二负载通道和平行通道之间,以限制来自第二液压缸的回流。

    Air cylinder with high frequency shock absorber and accelerator
    7.
    发明申请
    Air cylinder with high frequency shock absorber and accelerator 失效
    气缸采用高频减震器和加速器

    公开(公告)号:US20050194225A1

    公开(公告)日:2005-09-08

    申请号:US11065853

    申请日:2005-02-25

    摘要: High frequency shock absorber/accelerator built in at any or both end of conventional air cylinder that includes piston moving axially inside cylinder body and sealed against inner surface of body by sealing structure. Cylinder piston rod protrudes outside thru cylinder front-end block Shock absorber/accelerator comprises piston with sealing structures moving axially in inner chamber, which communicates with outer chamber thru aperture(s). Air cylinder piston meets the protruded rod of the shock absorber/accelerator piston and starts to move it thus pushing volume of compressed air through provided aperture from inner chamber to outer chamber. Piston sealing structures seal air coming through the aperture thereby isolating compressed air in the outer chamber from the inner chamber. Compressed air coming through the open venting valve forces pistons to move in opposite direction. Then, shock absorber/accelerator aperture opens and compressed air rushes back from the outer to the inner chamber for powerful acceleration.

    摘要翻译: 高频减震器/加速器内置在常规气缸的任一端或两端,包括活塞在缸体内轴向移动,并通过密封结构密封抵靠阀体的内表面。 气缸活塞杆通过气缸前端组件突出。减震器/加速器包括具有在内室中轴向运动的密封结构的活塞,其通过孔与外室连通。 气缸活塞与减震器/加速器活塞的突出杆相遇,并开始移动,从而将压缩空气的体积从内腔推向外腔。 活塞密封结构密封通过孔的空气,从而将外室中的压缩空气与内室隔离。 通过打开的排气阀进入的压缩空气迫使活塞沿相反方向移动。 然后,减震器/加速器开口打开,压缩空气从外部向内部反冲,以实现强大的加速。

    Cylinder apparatus with a capability of detecting piston position in a cylinder
    8.
    发明申请
    Cylinder apparatus with a capability of detecting piston position in a cylinder 审中-公开
    具有检测气缸中活塞位置的能力的气缸装置

    公开(公告)号:US20050146252A1

    公开(公告)日:2005-07-07

    申请号:US10747048

    申请日:2003-12-30

    申请人: Yun-Ching Chuang

    发明人: Yun-Ching Chuang

    摘要: A cylinder apparatus with a capability of detecting a piston position includes a cylinder, a throttling valve, a positive limit and a pressure switch. A piston is movably mounted in the cylinder. A piston rod with an outside end protruding out of the cylinder is attached to the piston and adapted to push an object. The cylinder is connected to a pump with pipes. The throttling valve and the pressure switch are connected to the pipes, and the pressure switch is installed between the cylinder and the throttling valve. Consequently, when the pump starts pumping, the piston rod pushes the object to abut the positive limit. The stopped movement of the piston rod will change the pressure in the cylinder that triggers the pressure switch to send a signal to a controlling host to stop the pump.

    摘要翻译: 具有检测活塞位置能力的气缸装置包括气缸,节流阀,正极和压力开关。 活塞可移动地安装在气缸中。 具有从气缸伸出的外端的活塞杆附接到活塞并适于推动物体。 气缸连接到带有管道的泵。 节流阀和压力开关连接到管道上,压力开关安装在气缸和节流阀之间。 因此,当泵开始泵送时,活塞杆推动物体抵靠正极。 活塞杆的停止运动将改变气缸中的压力,触发压力开关向控制主机发送信号以停止泵。

    Hydraulic actuating device
    10.
    发明申请
    Hydraulic actuating device 有权
    液压执行装置

    公开(公告)号:US20040237773A1

    公开(公告)日:2004-12-02

    申请号:US10858433

    申请日:2004-06-01

    IPC分类号: G05D011/00

    摘要: A hydraulic actuating device for moving an object, for example for a retractable hard-top of a convertible car. The actuating device comprises a reservoir for hydraulic fluid and a pump for delivering pressurized hydraulic fluid. Furthermore, the device comprises a double-acting hydraulic actuator, the first connection of the actuator being in communication with an associated throttling assembly which is designed to provide, for hydraulic fluid passing through the first connection, either an optionally controllable throttling or a clear passage opening, which is larger than the throttling opening, as a function of a switching parameter. The throttling assembly, which is in communication with the first connection of the actuator, has a pressure-detection means for detecting the hydraulic pressure in the second working chamber, which pressure-detection means has associated with it a predetermined switching pressure. The throttling assembly is designed in such a manner thatnullwhen pressurized hydraulic fluid is being supplied to the said second working chambernullthe clear passage opening is active if the detected pressure in the said second working chamber is above the switching pressure and that the throttling is active if the detected second working chamber hydraulivc pressure in the said second working chamber is below the switching pressure.

    摘要翻译: 用于移动物体的液压致动装置,例如用于敞篷车的可伸缩硬顶。 致动装置包括用于液压流体的储存器和用于输送加压液压流体的泵。 此外,该装置包括双作用液压致动器,致动器的第一连接与相关联的节流组件连通,该节流装置被设计成为通过第一连接的液压流体提供可选地可控的节流或清洁通道 作为开关参数的函数,其大于节流开口的开度。 与致动器的第一连接连通的节流组件具有用于检测第二工作室中的液压的压力检测装置,该压力检测装置与其相关联地具有预定的开关压力。 节流组件被设计成使得当加压的液压流体被供应到所述第二工作室时 - 如果所述第二工作室中的检测压力高于开关压力,则清洁通道开口是有效的,并且节流 如果所述第二工作室中检测到的第二工作室液压压力低于开关压力,则其是活动的。