Frequency-synchronized fluidic oscillator array
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United States of America Patent
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Aug 10, 2021
Grant Date -
May 16, 2019
app pub date -
Oct 11, 2018
filing date -
Oct 11, 2017
priority date (Note) -
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Abstract
Various implementations include a fluidic oscillator array including at least two fluidic oscillators, each including an interaction chamber, fluid supply inlet, outlet nozzle, and feedback channels. The interaction chambers have a first and second attachment wall. Fluid streams flow from the fluid supply inlets, into the interaction chambers, and exit through the outlet nozzles. A feedback channel is coupled to each of the first and second attachment walls. Each feedback channel is in fluid communication with the interaction chamber and has an intermediate portion disposed between a first and second end of the feedback channels. Fluid from the fluid stream flows into the first ends of the respective feedback channels, causing the fluid stream to oscillate between the first and second attachment walls. Adjacent feedback channels of adjacent fluidic oscillators share a common intermediate portion, causing the exiting fluid streams of each fluidic oscillator to oscillate at the same frequency.
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