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    Pressure maintaining mechanism for hydraulic system
    34.
    发明专利
    Pressure maintaining mechanism for hydraulic system 有权
    液压系统压力保持机构

    公开(公告)号：JP2011133058A

    公开(公告)日：2011-07-07

    申请号：JP2009293837

    申请日：2009-12-25

    Applicant: Tokyo Keiki Inc ,  東京計器株式会社

    Inventor： SAKURAI YASUO ,  AEBA KENICHI ,  YOSHINARI TAKAMASA

    IPC: F15B1/02 ,  F15B1/04

    Abstract: PROBLEM TO BE SOLVED: To provide a pressure maintaining mechanism which exhibits pressure maintaining performance with respect to changes in a volume of liquid caused by variation in a temperature of working liquid in a hydraulic system.
    SOLUTION: The pressure maintaining mechanism includes a pressure introduction chamber 34 into which pressure in a sealed section of the hydraulic system is introduced, an air chamber 36 disposed continued to the pressure introduction chamber 34, and an elastic body 38 filled in part in the pressure introduction chamber 34 so as to face the air chamber 36 and close the boundary part between the air chamber 36 and the pressure introduction chamber 34. Part of the elastic body 38 can be moved into the air chamber 36 and the part of the elastic body 38 moved into the air chamber 36 can be returned to the pressure introduction chamber 34 by elastic deformation, and thus, the volume for the working liquid in the pressure introduction chamber 34 is changed, absorbing the pressure fluctuation.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种压力保持机构，该压力保持机构相对于由液压系统中的工作液体的温度变化引起的液体体积的变化表现出保压性能。 解决方案：压力保持机构包括压力引入室34，液压系统的密封部分中的压力被引入压力引入室34中，与压力引入室34连续设置的空气室36和填充部分的弹性体38 在压力引入室34中，以与空气室36相对并闭合空气室36和压力引入室34之间的边界部分。弹性体38的一部分可以移动到空气室36中，并且部分 移动到空气室36中的弹性体38可以通过弹性变形返回到压力导入室34，因此，压力导入室34中的工作液体的体积变化，吸收压力波动。 版权所有（C）2011，JPO＆INPIT

    Apparatus for detecting metal fatigue of surface of rail
    39.
    发明专利
    Apparatus for detecting metal fatigue of surface of rail 审中-公开
    用于检测铁路表面金属疲劳的装置

    公开(公告)号：JP2010266339A

    公开(公告)日：2010-11-25

    申请号：JP2009118094

    申请日：2009-05-14

    Applicant: Tokyo Keiki Inc ,  Tokyo Keiki Rail Techno Inc ,  東京計器レールテクノ株式会社 ,  東京計器株式会社

    Inventor： SATO IZUMI ,  KOKUBU SEIJI

    IPC: G01N29/04 ,  B61K9/08

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for detecting metal fatigue of the surface of a rail and capable of evaluating metal fatigue by detecting the occurrence of minute cracks, in a state immediately prior to the occurrence of flaws.
    SOLUTION: A surface wave probe moves along a rail, as being in contact with the surface of the rail; generates surface waves toward the surface of the rail on the basis of transmission pulse signals; receives reflected waves reflected by a reflection source which can be present in the surface of the rail; and converts them into reception signals. Reception level signals of reflected waves are integrated at the surface wave probe, over a plurality of times of transmissions and receptions in a prescribed section, corresponding to an integrated value and a moved position to each other and to record them. Metal fatigue can be evaluated, on the basis of the integrated value.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于检测轨道表面的金属疲劳的装置，并且能够在发生缺陷之前的状态下通过检测微小裂纹的发生来评估金属疲劳。 解决方案：表面波探头沿轨道移动，与轨道表面接触; 基于传输脉冲信号产生朝向轨道表面的表面波; 接收可能存在于轨道表面中的反射源反射的反射波; 并将其转换为接收信号。 反射波的接收电平信号被集成在表面波探测器上，在规定的部分中的多次发射和接收中，对应于彼此的积分值和移动位置并记录它们。 可以在综合价值的基础上评估金属疲劳。 版权所有（C）2011，JPO＆INPIT

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