Patent ID: 6398525
Filing Date: 2002-06-04
Classification: F01C,F04D,F16D,Y10S

Abstract:
A device for pumping or otherwise conveying molten metal, the device comprising:a) a motor; b) a motor shaft extending from the motor having a first end and a second end; c) a coupling having a first coupling member and a second coupling member, the first coupling member connected to the second end of the motor shaft; d) a rotor shaft having a first end and a second end, the first end connected to the second coupling member; e) a pump casing having an inlet, a pump chamber in fluid communication with the inlet and a discharge in fluid communication with the pump chamber; f) a first bearing surface formed in the pump casing; and g) a monolithic graphite rotor attached to the second end of the rotor shaft and positioned within the pump chamber, the monolithic graphite rotor having a second bearing surface that aligns with the first bearing surface, the second bearing surface not including any separate bearing members.