The Working Principle:
The Dusty Air Must Enter Tangent To The Nozzle Body. So That Air Vortexes Around And Dust Is Spun Against The Nozzle Body Falls and Separates Down. Cleaner Air Escapes Up Through The Center To Second Stage. A HEPA Filter Is A Must! No Scramjet Nozzles...
A Prototype Model Illustrating The Working Principle In Action:
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