Browsing Virginia Tech Patents by Subject "B64D2033/0206"
Now showing items 1-1 of 1
(United States Patent and Trademark Office, 2000-09-05)An array of adaptive or fixed Herschel-Quincke tubes aligned in a circumferential or helical array about an inlet of a turbofan engine. The array of tubes effectively divide the acoustic energy generated by the engine. One ...