Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Passage or casing attached removable liner or wear member
Patent
1992-04-28
1993-06-15
Look, Edward K.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Passage or casing attached removable liner or wear member
264255, 264257, F04D 2902
Patent
active
052194612
ABSTRACT:
A replaceable lining for a centrifugal pump casing includes a continuous substantially rigid shell made of thermoset plastic resin material reinforced with woven roving fiberglass fabric sheets and randomly dispersed glass fibers. The lining also includes an elastomer layer bonded to an inner surface of the rigid shell. Both the elastomer layer and the shell have a volute section and a semicylindrical or semiconical discharge section integral therewith. The discharge section of the shell is provided along an outer surface with a set of outwardly projecting arcuate reinforcement ribs spaced along the discharge section. The ribs are integral with the shell. The shell is preformed and adhesively bonded to the elastomer layer during a compression molding step of a manufacturing process.
REFERENCES:
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patent: 4120605 (1978-10-01), Hurst
patent: 4234291 (1980-11-01), Hurst et al.
patent: 4321742 (1982-03-01), Hurst et al.
patent: 4566850 (1986-01-01), Grzina
patent: 4776760 (1988-10-01), Grisz
patent: 5029878 (1991-07-01), Ray
Hood, Jr. Claude R.
Hyll John
Ostler Jay L.
Purdy Steven G.
Turley Roger S.
Baker Hughes Incorporated
Coleman Henry D.
Lee Michael S.
Look Edward K.
Sudol R. Neil
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