Method for producing an impeller for turbine pumps provided with vanes having an improved profile
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United States of America Patent
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Jul 4, 2000
Grant Date -
N/A
app pub date -
Mar 5, 1998
filing date -
Mar 14, 1997
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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.
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