| 摘要 |
A propulsion unit comprises an elongated chamber having a front closed end and a rear open end with a side opening having a decreasing cross section inwardly of the chamber and directing incoming fluid tangentially of curved internal chamber walls for imparting a spin motion to such fluid for immediately redirecting fluid motion into an inwardly spiraling and longitudinally spreading flow outwardly of the open chamber end to propel the chamber forwardly. The unit operates with random wave motion as well as with expanding gases from a combustion chamber.
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