公开(公告)号：US20040020842A1

公开(公告)日：2004-02-05

申请号：US10410170

申请日：2003-04-10

申请人： Pet Mate Limited

发明人： Steve Martin Brooks ,  Robert Ivan John Wiedemann ,  David Goodwin

IPC分类号： B01D033/58

CPC分类号： B01D29/055 ,  B01D29/668 ,  B01D29/70 ,  B01D29/705 ,  B01D29/902 ,  B01D2201/186

摘要： A self-cleaning assembly comprising an enclosed casing 1 with a movable piston 31 and filters 32,33 therein. The preferred assembly has a casing 1 with a dirty water inlet 5, a first outlet 6 for clean filtered water and a second outlet 7 for the removal of sludge from the casing. The filter assembly is constructed and arranged to provide, in its normal operating mode, a liquid flow path through the filter 32,33 in a first direction between the dirty water inlet 5 and the clean water outlet 6 and, in a cleaning mode, to provide a liquid flow path in a second direction between the dirty water inlet 5 and the sludge outlet 7. In the cleaning mode, the movable member 31 compresses the filters 32,33 during the liquid flow in the second direction and contaminant is released therefrom for removal from the filter assembly via the second outlet 7. In an alternative embodiment, the sludge outlet 7 is omitted and sludge is removed from the casing via the outlet 6.

摘要翻译： 一种自清洁组件，包括具有可移动活塞31的封闭壳体1和其中的过滤器32,33。 优选的组件具有带有脏水入口5的壳体1，用于清洁过滤水的第一出口6和用于从壳体去除污泥的第二出口7。 过滤器组件被构造和布置成在其正常操作模式中提供在脏水入口5和清洁水出口6之间沿着第一方向穿过过滤器32,33的液体流动路径，并且在清洁模式下， 在脏水入口5和污泥出口7之间沿第二方向提供液体流路。在清洁模式中，可移动部件31在第二方向的液体流动期间压缩过滤器32,33，并且从其中释放污染物 通过第二出口7从过滤器组件移除。在替代实施例中，省略了污泥出口7，并且通过出口6将污泥从壳体中移出。