Pumps for pumping molten metal

Details Pumps for pumping molten metal Pumps for pumping molten metal

1999-02-04

2000-11-28

Verdier, Christopher

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Passage or casing attached removable liner or wear member

415200, 415206, F04D 706

Patent

active

061526916

ABSTRACT:
A nonmetallic pump for pumping molten metal includes a base with an impeller chamber, at least one molten metal inlet opening to the base, at least one molten metal outlet opening from the base, and an impeller connected to one end of a motor driven shaft and rotatable in the impeller chamber. The base includes a shell portion and a one-piece insert formed of nonmetallic heat-resistant material disposed in the impeller chamber. The insert includes a generally circular bore in which the impeller is disposed and a wall extending so as to form a spiral-shaped volute opening around the bore. An egress channel extends from the volute opening toward the molten metal outlet opening. Also included are methods for making the insert and base.

REFERENCES:
patent: 4786230 (1988-11-01), Thut
patent: 5597289 (1997-01-01), Thut
patent: 5622481 (1997-04-01), Thut
patent: 5716195 (1998-02-01), Thut
patent: 5951243 (1999-09-01), Cooper
patent: 6019576 (2000-02-01), Thut
Brochure, Pump Equation for the Eighties, H.T.S.

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