Method for producing an impeller for turbine pumps provided with

Details Method for producing an impeller for turbine pumps provided with Method for producing an impeller for turbine pumps provided with

1998-03-05

2000-07-04

Look, Edward K.

Metal working

Method of mechanical manufacture

Impeller making

29889, 416186R, 416DIG2, B23P 1500

Patent

active

060820004

ABSTRACT:
A turbine pump impeller provided with vanes of the double-curvature type, obtained monolithically by die casting and comprising, between two disk-shaped elements, a plurality of double-curvature vanes. In each vane, the two surfaces that are struck by the fluid are obtained from a sequence of transverse curved portions formed by circular arcs centered on a common spatial central axis.

REFERENCES:
patent: 3206807 (1965-09-01), Hoffman et al.
patent: 4720243 (1988-01-01), Katayama et al.
patent: 5328332 (1994-07-01), Chiang
patent: 5438755 (1995-08-01), Giberson
patent: 5573374 (1996-11-01), Giberson
patent: 5944485 (1999-08-01), Maumus et al.

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