Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
Patent
1990-07-10
1992-11-24
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Radial flow devices
415200, F01D 514
Patent
active
051658585
ABSTRACT:
An impeller for a molten metal pump having a cup-shaped body comprised of a sidewall and a closed end portion that define a cavity. A plurality of shear vanes extend radially from the outer surface of the impeller, particularly from the end portion of the impeller. The impeller also has a plurality of openings extending laterally through its sidewall, wherein the openings have center lines disposed parallel to lines extending radially from the center of the cavity. The openings may be equidistantly spaced about the periphery of the sidewall. The impeller may also be comprised of a bearing member forming a portion of the sidewall.
REFERENCES:
patent: 1645614 (1927-10-01), Monahan
patent: 2276404 (1942-03-01), Lundquist
patent: 3291473 (1966-12-01), Sweeney et al.
patent: 4664592 (1987-05-01), Grzina
patent: 4786230 (1988-11-01), Thut
Gilbert Ronald E.
Mordue George S.
Curatolo Joseph
Evans Larry
Kwon John T.
McCollister Scott
The Carborundum Company
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