Patent ID: 8409495
Filing Date: 2013-04-02
Classification: F04D,F05D,Y10T

Abstract:
1. A rotor device for use in a molten metal pump, the device comprising: a top and a bottom; a plurality of openings through which molten metal can pass, wherein each of the openings is defined in part by an inlet perimeter; a plurality of imperforate rotor blades for displacing molten metal, wherein each of the plurality of rotor blades has a leading face that includes a first portion that directs molten metal downward and a second portion beneath the first portion that directs molten metal outward, and a trailing face that includes a recess that increases the size of one of the openings to help permit molten metal to pass therethrough and into a pump chamber; wherein as the device is rotated, the openings, the inlet perimeters, and the rotor blades rotate.