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Pump with rotating inlet

  • US 8,075,837 B2
  • Filed: 06/26/2008
  • Issued: 12/13/2011
  • Est. Priority Date: 07/14/2003
  • Status: Active Grant
First Claim
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1. An impeller for use in a molten metal pump, the impeller for mounting in a pump chamber and for displacing molten metal entering the pump chamber, the impeller including:

  • a connective portion for connecting the impeller to a provided rotor shaft; and

    a bearing ring comprising;

    a bearing surface coaxial with the rotor shaft, and one or more grooves on the bearing surface, the grooves for reducing the build up of molten metal between the bearing surface and a corresponding bearing surface on a provided pump base.

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