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    • 6. 发明授权
    • Variable resistance type throttling trim
    • 可变电阻型节流装饰
    • US3908698A
    • 1975-09-30
    • US44402074
    • 1974-03-07
    • BAUMANN HANS D
    • BAUMANN HANS D
    • F16K1/54F16K47/04F16K47/08
    • F16K1/54F16K47/04F16K47/08Y10T137/86734Y10T137/86799
    • A variable resistance type control valve throttling trim having high resistance, fluid energy absorbing passages formed and controlled between the intersection of a cylindrical valve plug slidable co-operating with a cylindrical valve seatring and wherein the number, length, area ratio and specific fluid resistance are a function of the engaged length of the cylindrical plug portion in respect to the seatring bore and wherein the fluid energy absorbing passages consist of a pattern of slots and grooves radially inwardly penetrating the cylindrical wall of said valve plug and - or radially outwardly penetrating the cylindrical inside wall of said seatring bore.
    • 一种可变电阻型控制阀节流装置,其具有高阻力,在与圆柱形阀座可滑动配合的圆柱形阀塞之间形成并控制的流体能量吸收通道,其中数量,长度,面积比和比流体阻力是 圆柱塞头部分相对于座椅孔的接合长度的函数,并且其中流体能量吸收通道由径向向内穿过所述阀塞的圆柱形壁的槽和凹槽的图案组成,并且径向向外穿过圆柱形 所述座圈孔的内壁。