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Ultrasonic airinduct

 USES ultrasonic wave to pump air into the engine
 
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The technology already exsist in those ceramic oscillating fans. Uses a high powered version for the induct of a Ramjet. This will enamble a ramjet or even a scramjet to operate from 0m/s
—SIVOLC, Jul 12 2004

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       Can you elaborate? Too sketchy to visualize. Perhaps some background?
—RayfordSteele, Jul 12 2004
   

       Hmm. How would the ultrasonic device be powered? For a scramjet, you'd need a power source capable of supplying a steady stream of supersonic air.
—david_scothern, Jul 13 2004
   

       I can't find anything online about those "ceramic oscillating fans". The description reminds me of synthetic jets, but I don't actually know how those work.   

       // For a scramjet, you'd need a power source capable of supplying a steady stream of supersonic air. //   

       Could it operate as a subsonic (inefficient) ramjet blown by this invention until it gets up to Mach 1 airspeed and then receives supersonic ram air?
—notexactly, Jan 14 2016
   


 

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