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14 条记录 (耗时 0.037 秒)

    Magnetostrictive torque sensor and torque detection method
    11.
    发明授权
    Magnetostrictive torque sensor and torque detection method 失效
    磁致伸缩转矩传感器和扭矩检测方法

    公开(公告)号：US07997152B2

    公开(公告)日：2011-08-16

    申请号：US12448247

    申请日：2007-12-19

    申请人： Kazuhiro Yamakawa ,  Tetsuo Kanda

    发明人： Kazuhiro Yamakawa ,  Tetsuo Kanda

    IPC分类号： G01L3/02

    CPC分类号： G01L3/102 ,  G01L3/105

    摘要： A magnetostrictive torque sensor that detects a torque of a rotating shaft and/or a stationary shaft by using a magnetostriction inverse effect that occurs on a shaft surface, the magnetostrictive torque sensor includes a first detection coil, a second detection coil, a first oscillation circuit, a second oscillation circuit, a first direction magnetic permeability detector, a second direction magnetic permeability detector, and a torque detector.

    摘要翻译： 一种磁致伸缩扭矩传感器，其通过使用在轴表面上产生的磁致伸缩反作用力来检测旋转轴和/或固定轴的扭矩，所述磁致伸缩扭矩传感器包括第一检测线圈，第二检测线圈，第一振荡电路 第二振荡电路，第一方向磁导率检测器，第二方向磁导率检测器和扭矩检测器。

    Method of hardening a valve face of a poppet valve
    12.
    发明授权
    Method of hardening a valve face of a poppet valve 失效
    提升阀的阀面硬化方法

    公开(公告)号：US06295731B1

    公开(公告)日：2001-10-02

    申请号：US09488160

    申请日：2000-01-20

    申请人： Kazuhiro Yamakawa ,  Satoshi Fukuoka

    发明人： Kazuhiro Yamakawa ,  Satoshi Fukuoka

    IPC分类号： B23P1500

    CPC分类号： F01L3/20 ,  F01L3/02 ,  Y10T29/49298

    摘要： In a valve head of a poppet valve used in an internal combustion engine, a lobe is formed. The lobe has a vertical section of an isosceles triangle which has a vertex in the middle. By pressing the lobe in a bore of a die, the lobe is plastically deformed, so that a valve face is formed at a position which contacts a valve seat. Suitable airtightness is obtained between the valve face and the valve seat.

    摘要翻译： 在用于内燃机的提升阀的阀头中形成有凸角。 凸角具有在中间具有顶点的等腰三角形的垂直截面。 通过在模具的孔中按压凸角，凸角被塑性变形，使得阀面形成在与阀座接触的位置处。 在阀面和阀座之间获得适当的气密性。