Fabricated crown plate for Francis-type hydraulic turbine runner

Details Fabricated crown plate for Francis-type hydraulic turbine runner Fabricated crown plate for Francis-type hydraulic turbine runner

1975-08-18

1977-03-15

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

416213R, 415172R, 416174, F01D 514

Patent

active

040121704

ABSTRACT:
A fabricated crown for a Francis-type hydraulic turbine runner. The crown is fabricated from an integrally formed inner circular portion and a pair of outer semi-circular portions welded thereto. The inner circular portion provides a rigid section of high integrity to which the runner shaft is connected.

REFERENCES:
patent: 2691812 (1954-10-01), Misch
patent: 2784936 (1957-03-01), Schmidt
patent: 2807871 (1957-10-01), Wagner et al.
patent: 3797965 (1954-03-01), Tonooka et al.
patent: 3874819 (1975-04-01), Tamura et al.

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