Circulation controlled rotor blade

Details Circulation controlled rotor blade Circulation controlled rotor blade

1977-06-27

1978-12-26

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 2718

Patent

active

041313909

ABSTRACT:
A circulation controlled rotor blade which reduces rotor flutter by introing a laminar flow over the trailing edge. A trailing edge structure has a deformable tube to control a spanwise slot formed by the juxtaposition of an upper trailing edge lip over the deformable tube. The laminar flow is created by compressed fluid directed through the rotor blade and through the slot.

REFERENCES:
patent: 3172620 (1965-03-01), Darby
patent: 3554664 (1971-01-01), Cheeseman et al.
patent: 3873233 (1975-03-01), Linck
patent: 3889903 (1975-06-01), Hilby
patent: 3964838 (1976-06-01), Spargo

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