专利名称：Pump having a pump housing with one or
more feeding grooves
发明人：Ulf Arbeus申请号：US09/185271申请日：19981103公开号：US06139260A公开日：20001031
摘要：A pump of a centrifugal- or a half axial type meant for pumping liquids, mainlysewage water, the pump having a pump housing and a pump impeller. The pump impellerincludes a hub provided with one or several vanes, the leading edges of which beingstrongly swept backwards. Feeding grooves are arranged in the surrounding pumphousing in a surface opposed the vanes.
申请人：ITT MANUFACTURING ENTERPRISES, INC.
代理人：Menotti J. Lombardi
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