Balanced airflow control valve for helicopter blade

Details Balanced airflow control valve for helicopter blade Balanced airflow control valve for helicopter blade

1973-09-24

1976-06-22

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

039648389

ABSTRACT:
An airflow control valve for a circulation control rotor helicopter blade wherein the airflow path is equally distributed about the closure element so as to prevent the generation of unbalanced pressure forces.

REFERENCES:
patent: 2372030 (1945-03-01), Stalker
patent: 2457936 (1949-01-01), Stalker
patent: 2493041 (1950-01-01), Stalker
patent: 3139936 (1964-07-01), Davidson et al.
patent: 3524711 (1970-08-01), Cheeseman et al.

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