HYDRAULIC CONTROL VALVE SYSTEM WITH ISOLATED PRESSURE COMPENSATION
    91.
    发明申请
    HYDRAULIC CONTROL VALVE SYSTEM WITH ISOLATED PRESSURE COMPENSATION 有权
    具有隔离压力补偿的液压控制阀系统

    公开(公告)号:US20090173067A1

    公开(公告)日:2009-07-09

    申请号:US11971526

    申请日:2008-01-09

    Abstract: A hydraulic valve assembly includes a pressure compensating valve in which a compensator spool is slideably received in a bore. A pre-compensator gallery connected to a metering orifice, a preload gallery leading to a hydraulic actuator, an auxiliary pump supply passage, and a load sense passage all open into the bore. The compensator spool moves in response to a pressure differential between the pre-compensator gallery and the load sense passage. That movement selectively opens and closes a first path between the pre-compensator gallery and the a preload gallery, and a second path between the auxiliary supply passage and the load sense passage. Control of these paths maintains a constant pressure drop across the metering orifice and generates a pressure signal that is employed to regulate pressure at an outlet of a pump.

    Abstract translation: 液压阀组件包括压力补偿阀,其中补偿阀芯可滑动地容纳在孔中。 连接到计量孔的预补偿器库,通向液压致动器的预加载廊,辅助泵供应通道和全部通向孔的负载感测通道。 补偿器阀芯响应于预补偿器库和负载感测通道之间的压差而移动。 该运动选择性地打开和关闭预补偿器廊和预加载廊之间的第一路径,以及辅助供应通道和负载感测通道之间的第二路径。 这些路径的控制在整个计量孔口上保持恒定的压降,并产生用于调节泵出口处的压力的压力信号。

    Apparatus Operating Hydraulic Actuator for Valve
    92.
    发明申请
    Apparatus Operating Hydraulic Actuator for Valve 有权
    阀门用液压执行机构

    公开(公告)号:US20090107568A1

    公开(公告)日:2009-04-30

    申请号:US11942467

    申请日:2007-11-19

    Applicant: Byoung-Hoo Rho

    Inventor: Byoung-Hoo Rho

    Abstract: The present invention relates to an apparatus operating a hydraulic actuator for valve, which can manually operate the hydraulic actuator for opening and closing the valve by which a flow rate is adjusted. According to the present invention, by manually operating the hydraulic actuator for opening and closing the valve, there is an advantage of manually opening and closing the valve and thus easily adjusting a flow rate of fluid flowing in a pipe, even when power is cut off. Further, according to the present invention, the hydraulic actuator for opening and closing the valve can be selectively connected with a hydraulic power pack so as to automatically open and close the valve using the hydraulic power pack according to a user's selection, or which can manually open and close the valve.

    Abstract translation: 本发明涉及一种操作阀的液压致动器的装置,其可以手动操作用于打开和关闭调节流量的阀的液压致动器。 根据本发明,通过手动操作用于打开和关闭阀的液压致动器,具有手动打开和关闭阀的优点,并且因此即使当切断电源时也容易调节在管道中流动的流体的流量 。 此外,根据本发明,用于打开和关闭阀的液压致动器可以选择性地连接到液压动力组件,以便根据用户的选择使用液压动力组件来自动打开和关闭阀,或者可以手动地 打开和关闭阀门。

    Hydraulic arrangement
    94.
    发明申请
    Hydraulic arrangement 失效
    液压装置

    公开(公告)号:US20070022750A1

    公开(公告)日:2007-02-01

    申请号:US11471006

    申请日:2006-06-20

    Applicant: Marcus Bitter

    Inventor: Marcus Bitter

    Abstract: A hydraulic arrangement is provided for a tool locking device of a loader. The hydraulic arrangement comprises a hydraulic cylinder with first and second chambers, which cylinder has a first position for unlocking and a second position for locking, a first supply line hydraulically connected to the first chamber, a second supply line hydraulically connected to the second chamber and a control valve hydraulically connected to the first chamber. So as to prevent the faulty actuation of the hydraulic cylinder, it is proposed that the control valve has a first position and a second position, the control valve in the first position allowing hydraulic fluid to flow only in the direction of the first chamber and in the second position allowing hydraulic fluid to flow both to the first chamber and out of the first chamber and the control valve being controlled such that it assumes the first position when the hydraulic cylinder assumes its first position. In order to bring the hydraulic cylinder from the second position to the first position, the control valve always has to be moved to the second position first.

    Abstract translation: 为装载机的工具锁定装置提供液压装置。 液压装置包括具有第一和第二室的液压缸,该气缸具有用于解锁的第一位置和用于锁定的第二位置,液压地连接到第一室的第一供应管线,液压地连接到第二室的第二供应管线和 液压地连接到第一室的控制阀。 为了防止液压缸的故障致动,提出控制阀具有第一位置和第二位置,控制阀处于第一位置,允许液压流体仅在第一室的方向上流动,并且在 所述第二位置允许液压流体二者流动到所述第一室并且流出所述第一室,并且所述控制阀被控制,使得当所述液压缸处于其第一位置时,所述第二位置处于所述第一位置。 为了使液压缸从第二位置到第一位置,控制阀总是必须首先移动到第二位置。

    Anti-reaction valve device, and control unit and hydraulically powered system comprising anti-reaction valve device
    96.
    发明申请
    Anti-reaction valve device, and control unit and hydraulically powered system comprising anti-reaction valve device 失效
    防反应阀装置,以及包括防反应阀装置的控制单元和液压动力系统

    公开(公告)号:US20050126166A1

    公开(公告)日:2005-06-16

    申请号:US10979889

    申请日:2004-11-02

    Abstract: An anti-reaction valve device is configured to open such that a plunger and a sheet member move away from each other in association with first and second set difference pressures. Two anti-reaction valve devices are provided between two pipes fluidically connected to a hydraulically powered actuator such that directional relationship of connection of primary and secondary ports is reversed between the two anti-reaction valve devices so that a reaction of the actuator is inhibited quickly and reliably. A one-way valve means is positioned between the secondary port and an open and close control chamber within which the plunger and the sheet member are movable into contact with and away from each other and serves to inhibit a back flow of a hydraulic fluid. The one-way valve means is capable of inhibiting the plunger and the sheet member from moving away from each other undesirably, and hence malfunction of the anti-reaction valve devices.

    Abstract translation: 防反应阀装置被构造成打开,使得柱塞和片构件相对于第一和第二设定差压力彼此远离地移动。 两个防反应阀装置设置在与液压动力致动器流体连接的两个管之间,使得两个防反应阀装置之间的主要和次要端口的连接的方向关系相反,使得致动器的反应被快速地抑制, 可靠地 单向阀装置位于辅助端口和打开和关闭控制室之间,其中柱塞和片状构件可移动地彼此接触并远离彼此,并且用于抑制液压流体的回流。 单向阀装置能够阻止柱塞和片构件不期望地彼此远离地移动,从而防止反作用力装置的故障。

    Hydraulic control device for automatic transmission
    97.
    发明授权
    Hydraulic control device for automatic transmission 失效
    液压控制装置自动变速器

    公开(公告)号:US06860830B2

    公开(公告)日:2005-03-01

    申请号:US10253067

    申请日:2002-09-24

    Abstract: There is provided a hydraulic control device for an automatic transmission, which is comprised of an engagement state determining section and a protection control section. If the engagement state determining section determines that each clutch, which is supplied with a line pressure via a regulating valve having a spool and has an oil pressure switch disposed in an oil channel, is held in an engaged state when gears are not changed, the protection control section sets a command pressure for the regulating valve to a protective oil pressure lower than the line pressure. This brings the regulating valve into a pressure-regulating state to cause lands of the spool to form apertures that reduce hydraulic vibration applied to the line pressure. This inhibits an oil pressure beyond an acceptable value from being applied to the oil pressure switch, and therefore improves the durability of the oil pressure switch.

    Abstract translation: 提供了一种用于自动变速器的液压控制装置,其由接合状态确定部分和保护控制部分组成。 如果接合状态判定部通过具有卷轴的调节阀和设置在油路中的油压开关来确定被提供有管路压力的每个离合器在齿轮没有变化时保持在接合状态,则 保护控制部将调节阀的指令压力设定为低于管路压力的保护油压。 这使得调节阀进入压力调节状态,以使阀芯的平台形成孔径,从而减小施加于管路压力的液压振动。 这将油压超过可接受的值施加到油压开关上,从而提高油压开关的耐久性。

    Nut-plate riveter
    100.
    发明申请
    Nut-plate riveter 失效
    螺母板铆钉

    公开(公告)号:US20040139590A1

    公开(公告)日:2004-07-22

    申请号:US10731219

    申请日:2003-12-09

    Inventor: Ahmed Eldessouky

    Abstract: A nut-plate riveter which includes multiple pistons which assist in creating a pulling force. The nut-plate riveter provides that spent mandrels are pulled through the tool, thereby avoiding problems in the field. The nut-plate riveter includes a handle and a plurality of pistons disposed in the handle. Cavities are proximate the pistons for pressurizing the pistons, and air supply passages are in communication with the cavities for supplying air to the cavities to pressurize the pistons. A piston rod is engaged with at least one of the pistons, and the piston rod has a longitudinal bore therethrough which is configured to receive a spent mandrel. A deflector fitting may be disposed at an end of the nut-plate riveter.

    Abstract translation: 螺母板铆钉,其包括多个活塞,其有助于产生拉力。 螺母板铆钉提供了用过的心轴被拉过工具,从而避免了现场的问题。 螺母板铆钉包括手柄和设置在手柄中的多个活塞。 空腔靠近用于对活塞进行加压的活塞,并且空气供应通道与空腔连通,用于向空腔供应空气以对活塞加压。 活塞杆与至少一个活塞接合,并且活塞杆具有穿过其中的纵向孔,该纵向孔构造成容纳废心轴。 偏转器配件可以设置在螺母板铆钉的端部。

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