Adjustable blowing slot for circulation control airfoil

Details Adjustable blowing slot for circulation control airfoil Adjustable blowing slot for circulation control airfoil

1977-09-21

1979-01-30

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Drive by fluid reaction jet on working member

Articulated or flexible connection

416 90A, B64C 2108

Patent

active

041370082

ABSTRACT:
A circulation control airfoil having an edge slot formed by upper and lower uct panels. A plurality of struts are spaced along the length of the edge slot and are adjustably attached to the upper and lower duct to maintain the edge slot height. A reinforcing saddle is provided at each attachment position on the panels for distributing load applied to the struts over a large area of the duct panels. Each strut is provided with a differential lead thread system which provides high resolution adjustment capability for the edge slot.

REFERENCES:
patent: 2493041 (1950-01-01), Stalker
patent: 3172620 (1965-03-01), Darby
patent: 3719439 (1973-03-01), Dawson et al.
patent: 3873233 (1975-03-01), Linck
patent: 3889903 (1975-06-01), Hilby
patent: 3891163 (1975-06-01), Wilkerson et al.

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