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    Relief valve structure
    3.
    发明授权
    Relief valve structure 有权
    泄压阀结构

    公开(公告)号：US08297307B2

    公开(公告)日：2012-10-30

    申请号：US12585936

    申请日：2009-09-29

    申请人： Yoshitaka Kurokawa ,  Masahiro Kasahara ,  Yoshiro Umezawa

    发明人： Yoshitaka Kurokawa ,  Masahiro Kasahara ,  Yoshiro Umezawa

    IPC分类号： F16K17/04

    CPC分类号： F16K17/0473 ,  Y10T137/7904 ,  Y10T137/7925

    摘要： To provide a relief valve structure for an oil pump, which is capable of appropriately controlling/switching the discharge pressure and flow rate of oil to an optimum condition in low, middle and high speed regions of an engine. The relief valve structure has: a relief valve having formed therein a valve flow path for communicating between a valve head part and an outer circumferential side part; a valve housing in which a valve passage accommodating the relief valve is formed; a relief flow-in part formed on an axial direction one end side of the valve passage and communicating with the valve passage; a first discharge part formed in the valve housing and communicating with the valve flow path by the movement of the relief valve; and a second discharge part that is opened by allowing the valve head part to pass therethrough. The second discharge part is positioned nearer to the relief flow-in part than the first discharge part. The shortest gap between an outer circumferential side part opening of the valve flow path and the first discharge part is the same as or shorter than the shortest gap between the valve head part and the second discharge part during an initial state of the relief valve.

    摘要翻译： 提供一种用于油泵的安全阀结构，其能够适当地控制/切换排出压力和油的流量到发动机的低，中，高速区域的最佳状态。 安全阀结构具有：安装阀，其中形成有用于在阀头部和外周侧部之间连通的阀流路; 阀壳体，其中形成有容纳所述安全阀的阀通道; 所述泄压流入部形成在所述阀通路的轴向一端侧，与所述阀通路连通; 第一排出部，其形成在所述阀壳体中，并且通过所述安全阀的移动与所述阀流路连通; 以及通过允许阀头部分通过而打开的第二排出部。 第二排出部位于比第一排出部更靠近排泄流入部的位置。 在安全阀的初始状态期间，阀流路的外周侧开口与第一排出部之间的最短间隙与阀头部与第二排出部之间的最短间隙相同或短。

    Relief valve structure
    4.
    发明申请
    Relief valve structure 有权
    泄压阀结构

    公开(公告)号：US20100078085A1

    公开(公告)日：2010-04-01

    申请号：US12585936

    申请日：2009-09-29

    申请人： Yoshitaka Kurokawa ,  Masahiro Kasahara ,  Yoshiro Umezawa

    发明人： Yoshitaka Kurokawa ,  Masahiro Kasahara ,  Yoshiro Umezawa

    IPC分类号： F16K17/02

    CPC分类号： F16K17/0473 ,  Y10T137/7904 ,  Y10T137/7925

    摘要： To provide a relief valve structure for an oil pump, which is capable of appropriately controlling/switching the discharge pressure and flow rate of oil to an optimum condition in low, middle and high speed regions of an engine. The relief valve structure has: a relief valve having formed therein a valve flow path for communicating between a valve head part and an outer circumferential side part; a valve housing in which a valve passage accommodating the relief valve is formed; a relief flow-in part formed on an axial direction one end side of the valve passage and communicating with the valve passage; a first discharge part formed in the valve housing and communicating with the valve flow path by the movement of the relief valve; and a second discharge part that is opened by allowing the valve head part to pass therethrough. The second discharge part is positioned nearer to the relief flow-in part than the first discharge part. The shortest gap between an outer circumferential side part opening of the valve flow path and the first discharge part is the same as or shorter than the shortest gap between the valve head part and the second discharge part during an initial state of the relief valve.

    摘要翻译： 提供一种用于油泵的安全阀结构，其能够适当地控制/切换排出压力和油的流量到发动机的低，中，高速区域的最佳状态。 安全阀结构具有：安装阀，其中形成有用于在阀头部和外周侧部之间连通的阀流路; 阀壳体，其中形成有容纳所述安全阀的阀通道; 所述泄压流入部形成在所述阀通路的轴向一端侧，与所述阀通路连通; 第一排出部，其形成在所述阀壳体中，并且通过所述安全阀的移动与所述阀流路连通; 以及通过允许阀头部分通过而打开的第二排出部。 第二排出部位于比第一排出部更靠近排泄流入部的位置。 在安全阀的初始状态期间，阀流路的外周侧开口与第一排出部之间的最短间隙与阀头部与第二排出部之间的最短间隙相同或短。

    Relief valve
    5.
    发明申请
    Relief valve 审中-公开
    泄压阀

    公开(公告)号：US20070246103A1

    公开(公告)日：2007-10-25

    申请号：US11727879

    申请日：2007-03-28

    申请人： Kazuo Enzaka ,  Yoshiro Umezawa ,  Yasunori Ono

    发明人： Kazuo Enzaka ,  Yoshiro Umezawa ,  Yasunori Ono

    IPC分类号： F16K15/02

    CPC分类号： F16K15/025 ,  F16K17/046 ,  Y10T137/7925

    摘要： A relief valve mounted on a pump such as an oil pump, for preventing pressure abnormality by allowing fluid to escape when a discharge fluid pressure reaches a predetermined set value, wherein influx of oil sludge into the valve can be prevented. The relief valve comprises: a valve housing; and a guide inflow path which is in the same direction as a slide direction of a valve main body that slides along a valve guide path of the valve housing under a predetermined pressure and which provides communication between a discharge flow path and the valve guide path. The valve guide path is arranged so that a relief opening part thereof is closed downwardly by the valve main body. The valve guide path and the guide inflow path are arranged above an orthogonal cross section of the discharge flow path.

    摘要翻译： 安装在诸如油泵的泵上的安全阀，用于通过在排出流体压力达到预定设定值时允许流体逸出来防止压力异常，从而可以防止油污进入阀门。 安全阀包括：阀壳体; 以及与阀主体的滑动方向相同的方向的引导流入路径，其沿着预定压力的阀壳体的导阀路径滑动并且在排出流路和阀引导路径之间提供连通。 阀引导路径被布置成使得其释放开口部分被阀主体向下关闭。 阀引导路径和引导流入路径设置在排出流路的正交截面的上方。