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    • 42. 发明申请
    • Controller
    • 控制器
    • US20060076528A1
    • 2006-04-13
    • US10537250
    • 2003-10-31
    • Ichiro TokudaKenji TsubotaMichio YamajiTsutomu Shinohara
    • Ichiro TokudaKenji TsubotaMichio YamajiTsutomu Shinohara
    • F16K31/12
    • F16K31/52491F16K31/163F16K31/52408Y10T74/18992
    • Force amplifying means 5 comprises a tapered member 41 extending vertically downward from the lower end of an operating rod 3, a disk member 42 provided at-the upper end of a valve stem 16, and front and rear pivotal members 43, 44 arranged between the two members 41, 42 and opposed to each other with the tapered member 41 positioned therebetween, the pivotal members 43, 44 being pivotally movable about respective pivots 45, 46. Each of the pivotal members 43, 44 has a plate body 43a, 44a, an upper contact face 43b, 44b formed on an upper portion of the body and in bearing contact with a tapered face of the tapered member 41, and a lower contact face 43c, 44c formed on a lower portion of the body and bearing on the upper surface of the disk member 42. The lower contact face 43c, 44c of each pivotal member is in the form of a circular-arc cam face centered about a center line positioned away from the axis of the pivot 45, 46.
    • 力放大装置5包括从操作杆3的下端垂直向下延伸的锥形构件41,设置在阀杆16的上端的盘构件42,以及布置在操作杆3的下端之间的前和后枢转构件43,44。 两个构件41,42并且彼此对准,锥形构件41位于它们之间,枢转构件43,44可围绕各自的枢轴45,46枢转运动。每个枢转构件43,44具有板体43a,44 a,形成在本体的上部并与锥形构件41的锥面接触的上接触面43b,44b,以及形成在锥形构件41的下部的下接触面43c,44c 主体和轴承在盘构件42的上表面上。每个枢转构件的下接触面43c,44c是以围绕枢轴的轴线定位的中心线为中心的圆弧凸轮面的形式 45,46。