公开(公告)号：US06614339B2

公开(公告)日：2003-09-02

申请号：US09919474

申请日：2001-07-31

申请人： Robert Neville Parry ,  Richard Craig Alexander ,  James Jeffery Benke

发明人： Robert Neville Parry ,  Richard Craig Alexander ,  James Jeffery Benke

IPC分类号： H01H8538

CPC分类号： H01H85/43 ,  H01H9/342

摘要： An exhaust control device for use with a circuit interrupter includes a casing having a first expansion chamber and a second expansion chamber that are operationally disposed upstream of a heat sink and a damper, with the second expansion chamber being in fluid communication with the first expansion chamber and being in register with an inlet of the casing. The first expansion chamber extends between the inlet and the heat sink. The heat sink is a porous member that is annular in cross-section and includes a central cavity formed therein, the second expansion chamber being disposed in the central cavity. The first and second expansion chambers are configured to separate a blast of gases from the circuit interrupter into first and second pressure waves that sequentially travel through the heat sink and the damper, which reduces the peak intensity of the blast, extends its duration, and reduces its ionization level.

摘要翻译： 一种与断路器一起使用的排气控制装置包括具有第一膨胀室和第二膨胀室的壳体，第一膨胀室和第二膨胀室可操作地设置在散热器和阻尼器的上游，第二膨胀室与第一膨胀室流体连通 并且与壳体的入口对准。 第一膨胀室在入口和散热器之间延伸。 散热器是一种多孔构件，其是横截面为环形的并且包括形成在其中的中心空腔，第二膨胀室设置在中心空腔中。 第一和第二膨胀室被构造成将气流从电路断路器分离成第一和第二压力波，该第一和第二压力波依次穿过散热器和阻尼器，这降低了爆炸的峰值强度，延长了其持续时间，并且减小了 其电离水平。