Patent ID: 8267669
Filing Date: 2012-09-18
Classification: F04B,F04D,H02K

Abstract:
1. A magnetic induction pump for pumping molten metal, said pump comprising: a motor; a shaft operatively connected to said motor; at least one bipolar permanent magnet operatively connected to and extending from said shaft in a spoke configuration; a non-magnetic conduit for the passage of molten metal, said conduit being substantially arcuate in shape; wherein each of said at least one bipolar permanent magnet is oriented on the same lateral side of said conduit such that said conduit is not captured between opposed bipolar permanent magnets; and wherein said motor moves said shaft and said bipolar permanent magnet about said conduit thereby inducing an electric current in molten metal in said conduit to pump said molten metal through said conduit with said molten metal coming into contact with only said conduit; and wherein a height of said at least one bipolar permanent magnet is greater than or equal to approximately 2 to 3 times a height of said conduit.