Stator vane assembly for gas turbines

Details Stator vane assembly for gas turbines Stator vane assembly for gas turbines

1975-03-28

1976-11-16

Raduazo, Henry F.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

Radially sliding

415200, 415214, 415217, F01D 902, F01D 514

Patent

active

039921271

ABSTRACT:
A stator vane assembly is provided, particularly for the first row of stationary vanes of a gas turbine, utilizing ceramic vanes. Each individual vane assembly consists of an airfoil vane with a separate end cap at each end for supporting the vane in position. In accordance with the invention, the engaging surfaces of the vane and of each adjacent end cap are curved surfaces of compound curvature forming engaging pivot and seat surfaces, the major and minor radii of the pivot surface being less than the corresponding major and minor radii of the seat surface, and the curvature of the pivot surface being such that thermal ratcheting of the vane with respect to the end caps is prevented.

REFERENCES:
patent: 1891948 (1932-12-01), Rice
patent: 2595829 (1952-05-01), Dean
patent: 2801076 (1957-07-01), Terrell et al.
patent: 2819869 (1958-01-01), Meyer, Jr.
patent: 3843279 (1974-10-01), Crossley et al.
patent: 3857649 (1974-12-01), Schaller et al.
patent: 3864056 (1975-02-01), Gabriel et al.
patent: 3867065 (1975-02-01), Schaller et al.

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