Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing with axial – conical flow runner
Patent
1986-09-18
1987-12-29
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing with axial, conical flow runner
415500, F01D 2524
Patent
active
047157810
ABSTRACT:
A cover for turbines or pumps which is substantially less expensive than a cover having a cast construction. The cover is made of welded metal plates in a shape which generally corresponds to that of Kaplan type turbines, pumps or the like, and includes a number of thick walled rings and shells having a conical shape or envelope. The cover has a flat ring which is supported between the outer covering of the machine and a first, conical shell which surrounds the shaft of the machine and tapers narrower toward the runner of the machine. A second shell, also conical, defines a lesser conical angle than the first shell. It extends from the exterior of the first shell and axially toward the runner, surrounding the shaft, and is disposed for directing radially inward water flow axially toward the runner. At least one bearing is mounted between the flat ring and the shaft. The flat ring and the first and second shells are sheet metal and are welded together.
REFERENCES:
patent: 1693600 (1928-12-01), Grant
patent: 2875979 (1959-03-01), Danel et al.
Bronowski Helmut
Dahlke Christian
Garrett Robert E.
J. M. Voith GmbH
Kwon John T.
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