Molten metal pump with filter
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United States of America Patent
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-
Jan 7, 1992
Grant Date -
N/A
app pub date -
Jan 19, 1990
filing date -
Jan 19, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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