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    • 11. 发明申请
    • FLOW CONTROLLER, PARTS OF FLOW CONTROLLER, AND RELATED METHOD
    • 流量控制器,流量控制器部件及相关方法
    • WO1996021182A2
    • 1996-07-11
    • PCT/US1995015157
    • 1995-11-20
    • TYLAN GENERAL, INC.MUDD, Daniel, T.DUONG, Hai
    • TYLAN GENERAL, INC.
    • G05D07/06
    • G01F5/00B23P11/005G01F1/6842G01F1/6847G01F15/00G01F15/005G05D7/0635Y10T29/49423Y10T29/49426Y10T137/0898Y10T137/7759Y10T137/7761Y10T137/87338Y10T137/87354
    • A mass fluid flow controller has a valve which is controlled by a controller rod structure which is substantially pivotally mounted on a metallic diaphragm which stretches and unstretches with the movement of the rod structure. The actuation of the rod structure is by the expansion and contraction of an actuator wire which is heated for the expansion and allowed to cool for the contraction. The primary fluid flow path through the controller is straight. A sensor conduit, provididng a parallel sensor fluid flow path, is connected in position using metallic sealer members which extend in openings to the primary fluid flow path and which are rounded along the direction through such openings. The pressure drop, along the primary fluid flow path, to create flow through the sensor conduit, is provided by a fluid flow restrictor having a core and having lengths of wire along the core which are squeezed between the core and a tapered fluid flow path wall in the vicinity of the sensor conduit input and output connections. A spherical or a conical shape may be used for the form of the core. A valve seat bushing is mounted in pipe structure providing the primary fluid flow path by applying a force against an end surface of the bushing, with movement of the bushing blocked, in order to deform the end surface, push the outer wall of the bushing against the inner wall of the pipe structure, and fix the bushing in the pipe structure. In the relationship between the controller rod structure and a ball which acts as a gate-member for the valve, an elongated stem rod having a sleeve about it may be used in fixing the ball to the controller rod structure. The stem rod may be mounted by fixing it to the elongated sleeve, a distance from the gate-member side of the controller rod structure that is substantially greater than the distance of the position of the ball from the gate-member side of the controller rod structure.
    • 质量流体流量控制器具有阀,其由控制器杆结构控制,该控制器杆结构基本上可枢转地安装在金属隔膜上,该金属隔膜随着杆结构的运动而伸展和伸展。 杆结构的致动是通过致动器线的膨胀和收缩,致动器线被加热以用于膨胀并允许冷却用于收缩。 通过控制器的主流体流动路径是直的。 提供平行传感器流体流动路径的传感器导管使用在开口中延伸到主要流体流动路径并且沿着穿过这种开口的方向被倒圆的金属密封件构件连接就位。 沿着初级流体流动路径的压力下降,以产生通过传感器导管的流动,由具有芯的流体限流器提供,该流体限流器具有沿芯部的一定数量的导线,该芯线被挤压在芯部和锥形流体流动通道壁 在传感器管道附近输入和输出连接。 芯的形式可以使用球形或圆锥形。 阀座衬套安装在管状结构中,通过在衬套的端面施加力,通过衬套的移动阻止主体流体流动路径,从而使端面变形,推动套管的外壁抵抗 管结构的内壁,并将衬套固定在管道结构中。 在控制杆结构和用作阀门的阀之间的关系中,可以使用具有围绕其的套筒的细长杆杆将球固定到控制杆结构。 杆杆可以通过将其固定到细长的套筒上而安装,距离控制器杆结构的门构件侧的距离大大地大于球从控制器杆的门构件侧的位置的距离 结构体。