公开(公告)号：US5909878A

公开(公告)日：1999-06-08

申请号：US797896

申请日：1997-02-10

申请人： Andreas Schrufer ,  Walter Ittner ,  Reinhard Svejkovsky ,  Andreas Schopf ,  Dieter Ziegenbein

发明人： Andreas Schrufer ,  Walter Ittner ,  Reinhard Svejkovsky ,  Andreas Schopf ,  Dieter Ziegenbein

IPC分类号： F16J15/34

CPC分类号： F16J15/3404

摘要： A mechanical face seal assembly for sealing a rotating member with respect to a stationary member comprises at least a pair of cooperating annular sealing elements, of which one is mountable in a non-rotating manner with respect to the stationary member and the other for common rotation with the rotating member. Between the rotating member and the non-rotating sealing element an annular space is defined, the radial dimension of which varies between a region of minimum radial dimension and a region of maximum radial dimension, which are offset circumferentially to each other. Inlet means for introducing a buffer liquid into the annular space at or near to the region having a maximum radial dimension and outlet means for discharging said buffer liquid from said annular space at or near to the region having a minimum radial dimension are provided. At least one delivery-promoting recess is formed in a portion of the rotating member oriented axially to said annular space for promoting a flow of the buffer liquid along the annular space from the inlet to the outlet means and for receiving gas bubbles released from the buffer liquid when pressurized in the annular space.

摘要翻译： 用于相对于固定构件密封旋转构件的机械表面密封组件包括至少一对协作的环形密封元件，其一个可相对于固定构件以不旋转的方式安装，而另一个用于共同旋转 与旋转构件。 在旋转构件和非旋转密封元件之间限定环形空间，其径向尺寸在最小径向尺寸区域和最大径向尺寸区域之间变化，该区域彼此周向偏移。 提供用于将缓冲液引入到具有最大径向尺寸的区域处或附近的环形空间的入口装置，并且用于将所述缓冲液体从处于或接近具有最小径向尺寸的区域的所述环形空间排出的出口装置。 至少一个递送促进凹部形成在旋转构件的轴向定向到所述环形空间的部分中，用于促进缓冲液体沿着环形空间从入口到出口装置的流动并且用于接收从缓冲器释放的气泡 在环形空间中加压时液体。