Patent ID: 7128082

Claim:
A method of controlling a main fluid flow comprising: positioning an array of fluidic oscillators, comprising: a first fluidic oscillator carrying an oscillating flow of a control fluid, comprising: a first throat, a first input port connected to said first throat, a first control port and a second control port connected to said first throat, a first output port and a second output port extending from said first throat, a first feedback line connected to said first output port and said first control port and a second feedback line connected to said second output port and said second control port; connecting a plenum to said first input port to supply said control fluid to said first fluidic oscillator; disposing a first feedback chamber along said first feedback line and a second feedback chamber along said second feedback line to provide a plurality of feedback paths for said control fluid to cause oscillatory fluid motion between said first output port and said second output port; and varying the volume of said first feedback chamber and the volume of said second feedback chamber to achieve a desired frequency of oscillation.