公开(公告)号：US20100200087A1

公开(公告)日：2010-08-12

申请号：US12367912

申请日：2009-02-09

申请人： LAWRENCE J. ANDREWS ,  JEFFREY D. KERR ,  TIMOTHY J. BOTTI

发明人： LAWRENCE J. ANDREWS ,  JEFFREY D. KERR ,  TIMOTHY J. BOTTI

IPC分类号： F16K15/00

CPC分类号： F16K15/021 ,  F16K11/044 ,  Y10T137/2567 ,  Y10T137/7856 ,  Y10T137/7904 ,  Y10T137/7908 ,  Y10T137/7913 ,  Y10T137/7914

摘要： A check valve includes a valve body defining an internal chamber and a valve seat disposed within the internal chamber adjacent to one of the first and second ends of the valve body. A poppet is mounted for linear movement along a poppet axis within the internal chamber between the first and second ends of the valve body and has a predetermined cross-sectional shape in a direction transverse to the poppet axis, a peripheral rim defining a movement guiding surface, a frustoconical surface provided in one axial end of the poppet and oriented in a direction toward the one end of the valve body, a sealing bead disposed on the frustoconical surface, and a predetermined plurality of passages formed in a predetermined pattern through at least one of the peripheral rim and the frustoconical surface in open communication with an opposed axial end of the poppet.

摘要翻译： 止回阀包括限定内腔的阀体和与阀体的第一和第二端中的一个相邻的内室内的阀座。 一个提升阀被安装成沿阀体轴线在阀体的第一和第二端之间沿着提升轴线直线运动，并且在横向于提升轴的方向上具有预定的横截面形状，外周边缘限定运动引导面 ，提供在提升阀的一个轴向端部并且朝向阀体的一端的方向定向的截头圆锥形表面，设置在截头圆锥形表面上的密封珠，以及通过至少一个形成为预定图案的预定多个通道 的周边边缘和截头圆锥形表面与提升阀芯的相对的轴向端开放连通。