Railcar cushion device preload valving systems
    58.
    发明授权
    Railcar cushion device preload valving systems 失效
    Railcar坐垫装置预紧阀门系统

    公开(公告)号:US5871109A

    公开(公告)日:1999-02-16

    申请号:US714553

    申请日:1996-09-16

    申请人: Glen L. Litten

    发明人: Glen L. Litten

    摘要: A pressure relief valving system for a rail car cushion device including several preload valves mounted in the cylinder wall of the cushion device each having both spring biasing and hydraulic biasing applied to retain a valve piston against a seat until a preload pressure is reached, and each preload valve capable of transitioning from a closed mode to an open mode at a preset preload pressure.

    摘要翻译: 一种用于轨道汽车缓冲装置的压力释放阀系统,包括安装在缓冲装置的气缸壁中的几个预加载阀,每个具有弹簧偏置和液压偏置,以将阀活塞保持抵靠座椅直到达到预压力,并且每个 预压阀能够在预设的预压力下从闭合模式转换到打开模式。

    Railcar shock absorber backstop
    59.
    发明授权
    Railcar shock absorber backstop 失效
    轨道车减震器支撑

    公开(公告)号:US5762214A

    公开(公告)日:1998-06-09

    申请号:US780361

    申请日:1997-01-09

    IPC分类号: B61G9/08

    CPC分类号: B61G9/08

    摘要: A shock absorber for a railcar locates within a center sill of the railcar. The shock absorber has a housing that moves relative to the center sill. A backstop is welded to the center sill for retaining the piston shaft. The backstop has a top, a bottom and two parallel sides. The height of the backstop from the bottom to the top is substantially less than the center sill. The sides of the backstop are welded to the sidewalls of the center sill in a position which provides an upper clearance between the top of the backstop and the top wall of the center sill and a lower clearance between the bottom of the backstop and the bottom of the center sill.

    摘要翻译: 轨道车辆的减震器位于铁路车辆的中心门槛内。 减震器具有相对于中心梁运动的壳体。 一个止回阀被焊接到中心梁,用于保持活塞轴。 后挡板具有顶部,底部和两个平行的侧面。 后挡板从底部到顶部的高度大大小于中间梁。 逆止器的侧面被焊接到中间梁的侧壁处,该位置在后挡板的顶部和中间梁的顶壁之间提供上部间隙,并且在后挡板的底部和底部之间的下部间隙 中心的门槛。

    Hydro-pneumatic cushioning device
    60.
    发明授权
    Hydro-pneumatic cushioning device 失效
    液压气动缓冲装置

    公开(公告)号:US5487480A

    公开(公告)日:1996-01-30

    申请号:US257704

    申请日:1994-06-10

    IPC分类号: B61G9/08 F16F9/34 B61G9/00

    CPC分类号: B61G9/08 F16F9/34

    摘要: An end-of-car coupler includes a hydro-pneumatic cushioning device. The latter has a ported tube separating the hydraulic cylinder chamber from an outer annular chamber containing gas. Each port is fitted with a valve, the obturating member of each valve being a differential area piston. The valves are all closed until subjected to a certain threshold force by movement of the plunger in the cylinder when all those valves between the plunger and the end of the cylinder chamber open to allow liquid flow between the two chambers.

    摘要翻译: 汽车终端耦合器包括液压气动缓冲装置。 后者具有将液压缸室与包含气体的外部环形室分离的入口管。 每个端口配有一个阀门,每个阀门的密封件是差动区域活塞。 当柱塞和气缸室的端部之间的所有这些阀打开以允许液体在两个室之间流动时,阀门全部关闭,直到经过柱塞在气缸中的移动而受到一定的临界力。