| 摘要 |
The invention is a method and apparatus for generating vortex rings in a fluid medium. The apparatus is immersed in a body of water, and an air pump feeds gas in the form of air directly into the base of the apparatus through a gas inlet or the gas is provided from a container with a finite quantity of gas. A nozzle extends from the gas inlet to a pocket located on an underside of a lever. As air is pumped into the pocket, the air forms a single bubble, and when the force of the air mass exceeds the weight of the lever, the lever rises and the air mass travels as a cohesive unit to an exit nozzle. When the lever reaches the maximum height displacement defined by a resilient upper stop, the air exits the lever through a nozzle and forms a vortex ring.
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