Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing having multiple parts releasably clamped
Patent
1992-06-03
1993-11-02
Kwon, John T.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing having multiple parts releasably clamped
415206, 403330, 403 11, F04D 2942
Patent
active
052579042
ABSTRACT:
A volute housing is disclosed for use with a centrifugal fan, blower or the like, and includes a housing body defined by opposite spaced sidewalls, a volute peripheral wall disposed between the sidewalls and defining therewith and with an impeller a volute chamber, and the sidewalls each having a generally minimum radial dimension located at a tongue of the volute chamber which progressively increases to a maximum radial dimension located at a throat of the volute chamber. The sidewalls include first sidewall portions which are generally parallel to each other between the tongue and a transition zone 180.degree. therefrom, and second sidewall portions of the sidewalls from the transition zone to the volute throat at approximately 360.degree. are in diverging relationship in a direction away from the transition zone whereby fluid/air flowing through the housing body expands progressively axially outwardly as it flows between and along the second sidewall portions.
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"Fan Engineering" by Richard D. Madison, Published by Buffalo Forge Co.
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