Railcar cushion device valving systems
    1.
    发明授权
    Railcar cushion device valving systems 失效
    轨道式缓冲装置阀门系统

    公开(公告)号:US5826735A

    公开(公告)日:1998-10-27

    申请号:US744493

    申请日:1996-11-12

    申请人: Glen L. Litten

    发明人: Glen L. Litten

    摘要: A valving system for a rail car cushion device including several pressure control relief sequence valves (PCRS) mounted in the cylinder wall of the cushion device each having hydraulic biasing applied to retain a valve piston against a seat until a preload pressure is reached, with one or more optional spike control (SC) valves mounted in a cushion device piston head.

    摘要翻译: 一种用于轨道汽车缓冲装置的阀门系统,包括安装在缓冲装置的气缸壁中的多个压力控制释放顺序阀(PCRS),每个压力控制释放顺序阀均具有施加液压偏压以将阀活塞保持抵靠座椅直到达到预压力,其中一个 或更多可选的尖峰控制(SC)阀安装在缓冲装置活塞头中。

    Railcar cushion device preload valving systems
    2.
    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 cushion device tester and method
    3.
    发明授权
    Railcar cushion device tester and method 失效
    轨道坐垫装置测试仪及方法

    公开(公告)号:US5325700A

    公开(公告)日:1994-07-05

    申请号:US48131

    申请日:1993-04-13

    申请人: Glen L. Litten

    发明人: Glen L. Litten

    摘要: A railcar cushion device is tested by applying a force necessary to move the cushion device in a controlled motion at a predetermined velocity or velocities according to a motion profile. The cushion device's performance is analyzed by measuring the force applied at various positions during the motion profile and comparing the force to a standard for cushion devices in good condition at the positions. Alternatively, a damping coefficient or other performance parameter for the cushion device is calculated from the force applied and position of the cushion device and compared to a standard to analyze cushion device performance. A tester for performing cushion device testing comprises a hydraulic ram and an electronic motion controller for applying the force to the cushion device. The motion controller uses motion feedback from a position transducer to provide the controlled motion to the cushion device.

    摘要翻译: 轨道式缓冲装置通过施加按照运动曲线以预定的速度或速度以受控的运动来移动缓冲装置所需的力来测试。 缓冲装置的性能通过测量在运动曲线期间在各个位置施加的力来分析,并将力与位置良好的缓冲装置的标准进行比较。 或者,根据缓冲装置的施加力和位置计算缓冲装置的阻尼系数或其它性能参数,并与标准进行比较以分析缓冲装置的性能。 用于执行缓冲装置测试的测试器包括液压压头和用于将力施加到缓冲装置的电子运动控制器。 运动控制器使用来自位置传感器的运动反馈来向缓冲装置提供受控运动。

    Cargo handling hydraulic ramp loader system and methods
    4.
    发明授权
    Cargo handling hydraulic ramp loader system and methods 失效
    货物处理液压坡道装载机系统及方法

    公开(公告)号:US5829947A

    公开(公告)日:1998-11-03

    申请号:US665201

    申请日:1996-06-13

    申请人: Glen L. Litten

    发明人: Glen L. Litten

    IPC分类号: B60P1/43 B60P1/44

    CPC分类号: B60P1/43

    摘要: A hydraulic ramp loader, track channel systems and methods for lifting, leveling, aligning, moving loading and unloading cargo on channel-dolly-pallets into a carrier equipped with a like track channel system, the ramp loader having a lifting hydraulic cylinder, a leveling hydraulic cylinder, a control means and an extendible and expandable interlocking track channel frame ramp.

    摘要翻译: 液压坡道装载机,履带通道系统和方法,用于在通道 - 托盘上提升,调平,对准,移动装载和卸载货物到装有类似履带通道系统的托架中,斜坡装载机具有提升液压缸, 液压缸,控制装置和可扩展和可扩展的互锁轨道通道框架斜坡。

    Test sill for railcar cushion units
    5.
    发明授权
    Test sill for railcar cushion units 失效
    轨道车座垫单元测试台

    公开(公告)号:US5485742A

    公开(公告)日:1996-01-23

    申请号:US296316

    申请日:1994-08-24

    申请人: Glen L. Litten

    发明人: Glen L. Litten

    IPC分类号: G01M17/08 G01M17/00

    CPC分类号: G01M17/08

    摘要: A cushion unit is supported in a test sill for testing by a hydraulic ram tester. The test sill includes a horizontal sill member. A stop block having a receptacle for receiving a rod end of the cushion unit is attachable to the sill member at any of a plurality of positions to accommodate various sized cushion units. A coupler slider slidingly engages guide bars mounted on the sill member, and attaches to another end of the cushion unit. A spring return mechanism mounted to the sill member also attaches to the cushion unit. The cushion unit can be installed in and removed from the test sill without detaching the test sill from the hydraulic ram tester.

    摘要翻译: 一个缓冲单元支撑在一个测试台架中,用于通过液压柱塞测试仪进行测试。 测试台包括一个水平门槛构件。 具有用于容纳缓冲单元的杆端的容器的止动块可以在多个位置中的任何位置处附接到门槛构件以适应各种尺寸的缓冲单元。 联接器滑块滑动地接合安装在门槛构件上的导杆,并且连接到缓冲单元的另一端。 安装到门槛构件的弹簧复位机构也附接到缓冲单元。 缓冲单元可以安装在测试台上和从测井台移除,而不会从液压柱塞测试仪上拆下测试台。