公开(公告)号：US5078572A

公开(公告)日：1992-01-07

申请号：US467485

申请日：1990-01-19

申请人： Lutfi Amra ,  Ronald E. Gilbert ,  George S. Mordue

发明人： Lutfi Amra ,  Ronald E. Gilbert ,  George S. Mordue

IPC分类号： B01D35/26 ,  C22B9/05 ,  F04D7/06 ,  F04D13/04 ,  F04D29/70

CPC分类号： F04D29/708 ,  B01D35/26 ,  C22B9/055 ,  F04D13/04 ,  F04D7/065

摘要： A molten metal pump includes a filter that prevents ingestion of foreign material such as dross from molten metal within which the pump is immersed. The filter is a large structure that is secured to the base of the pump surrounding the pump's inlet. The filter forms a cavity adjacent the pump's inlet. The filter has a low porosity while maintaining a high flow rate for the pump. The filter is a semi-toroidal structure that is attachable to a pump base having an upper inlet. The filter surrounds the pump's inlet. The filter includes a central opening through which access can be had to the pump's impeller for purposes of inspection, repair, or replacement without disturbing the attachment between the filter and base.

摘要翻译： 熔融金属泵包括防止从浸入其中的熔融金属吸收异物诸如渣滓的过滤器。 过滤器是一种大型结构，其固定在泵的入口周围的泵的底部。 过滤器在泵的入口附近形成一个空腔。 过滤器具有低孔隙率，同时保持泵的高流量。 过滤器是可连接到具有上部入口的泵基座的半环形结构。 过滤器围绕泵的入口。 过滤器包括一个中央开口，为了检查，修理或更换的目的，可以通过该中心开口进入泵的叶轮，而不会干扰过滤器和底座之间的连接。

公开(公告)号：US5286163A

公开(公告)日：1994-02-15

申请号：US532889

申请日：1990-06-05

申请人： Lutfi Amra ,  Ronald E. Gilbert ,  George S. Mordue

发明人： Lutfi Amra ,  Ronald E. Gilbert ,  George S. Mordue

IPC分类号： B01D35/26 ,  C22B9/05 ,  F04D7/06 ,  F04D13/04 ,  F04D29/70

CPC分类号： F04D29/708 ,  B01D35/26 ,  C22B9/055 ,  F04D13/04 ,  F04D7/065

摘要： A molten metal pump includes a filter that prevents ingestion of foreign material such as dross from molten metal within which the pump is immersed. The filter is a large structure that is secured to the base of the pump surrounding the pump's inlet. The filter forms a cavity adjacent the pump's inlet. The ratio of the surface area of the filter to the inlet area of the pump is very large due in part to a corrugated end wall included as part of the filter. The filter has a low porosity while maintaining a high flow rate for the pump.

摘要翻译： 熔融金属泵包括防止从浸入其中的熔融金属吸收异物诸如渣滓的过滤器。 过滤器是一种大型结构，其固定在泵的入口周围的泵的底部。 过滤器在泵的入口附近形成一个空腔。 过滤器的表面积与泵的入口面积的比例非常大，部分原因在于作为过滤器的一部分包括的波纹端壁。 过滤器具有低孔隙率，同时保持泵的高流量。