Impeller of centrifugal fluid-type rotary machine

Details Impeller of centrifugal fluid-type rotary machine Impeller of centrifugal fluid-type rotary machine

1986-09-22

1988-01-19

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

416186R, F04D 2922

Patent

active

047202432

ABSTRACT:
An impeller of a centrifugal fluid-type rotary machine includes impeller blades each having a concave and convex surface of which the shape is formed of parallel generatrices inclined with respect to a rotary shaft by an angle defined for each impeller blade. A method of manufacturing the impeller includes inclining a main plate material of the impeller with respect to a plane of a table of a machine tool by a desired angle, fixedly mounting the plate on the table after placing the plate on a rotation indexable jig, controlling three axial positions of the plate in the right and left, front and rear and upper and lower direction by a three-axis controller and cutting out the main plate or side plate by a cutting tool to integrally form the impeller blades on the plate.

REFERENCES:
patent: 1959703 (1934-05-01), Birmann
patent: 2407469 (1946-09-01), Birmann
patent: 2465671 (1949-03-01), Van Millingen et al.
patent: 2480807 (1949-08-01), De Vlieg
patent: 2782691 (1957-02-01), Feagans
patent: 2962941 (1960-12-01), Stein et al.
patent: 2985952 (1961-05-01), Nutter et al.
patent: 4594052 (1986-06-01), Niskanen

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