Stationary blade design for L-OC row

Details Stationary blade design for L-OC row Stationary blade design for L-OC row

1990-10-24

1993-05-18

Look, Edward K.

Rotary kinetic fluid motors or pumps

Means, disposition or arrangement for causing supersonic...

4151737, 416223A, 416DIG5, F01D 904

Patent

active

052117030

ABSTRACT:
A stationary blade of a steam turbine having a rotor and an inner cylinder for mounting the stationary blade in a row with plural identical stationary blades, comprising an airfoil having a leading edge, a trailing edge, a pressure-side concave surface and suction-side convex surface extending between the leading and trailing edges. A stagger angle being defined by as an angle of a chord between the leading and trailing edges to a longitudinal axis of the rotor; an outer ring for connecting a proximal end of the airfoil to the inner cylinder; an inner ring connected to a distal end of the airfoil; and a seal assembly carried by the inner ring and sealingly engaging the rotor; wherein the stagger angle ranges from about 42.degree. at the distal end of the airfoil to about 52.degree. at the proximal end.

REFERENCES:
patent: 784670 (1905-03-01), Fullagar
patent: 2640679 (1953-06-01), Wheatley et al.
patent: 2934259 (1960-04-01), Hausmann
patent: 3475108 (1969-10-01), Zickhur
patent: 4626174 (1986-12-01), Sato et al.
patent: 4900223 (1990-02-01), Groenendaal, Jr.
patent: 4900230 (1990-02-01), Patel
patent: 4915581 (1990-04-01), Groenendaal, Jr. et al.

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