Fluid reaction surfaces (i.e. – impellers) – Diverse impellers or working members
Patent
1984-08-03
1987-01-06
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Diverse impellers or working members
415170B, 415213B, 416186R, F04D 104
Patent
active
046343440
ABSTRACT:
A pump of centrifugal type having both an impeller unit and an expeller unit coupled together for effecting frictionless hydraulic seal during operation within an appropriate housing therefor. By providing an expeller unit separate from the impeller unit, the portions of the impeller unit which wear fastest can be replaced as needed without the need for replacing other components as soon. This greatly reduces the cost of maintenance and replacement. Also, rotor vanes and stacked separator discs in a preferred embodiment provide for greatly reduced manufacturing and assembly costs, and yet allow the flexibility of easy replacement of only parts that are severely worn or corroded as needed. Both the method of making and the method of assembly are encompassed by this invention.
Furthermore, all of the component elements are preferably rubber covered for maximum protection against abrasion and corrosive action of the liquid being pumped.
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Choquette Henry T.
Zagar Irvin F.
A. R. Wilfley and Sons, Inc.
Powell Jr. Everette A.
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