| 摘要 |
PROBLEM TO BE SOLVED: To generate microbubbles with a simple structure not requiring a swirl by a high pressure pump. SOLUTION: A microbubble generator generates microbubbles of dissolved air by using cavitation caused when high-speed water flow passes through a plurality of nozzles arranged at a narrow distance, and comprises (a) an inlet side first nozzle 3 for water passing whose cross sections orthogonal to its center axis decreases gradually from the inlet 2e to the outlet 2f, (b) an outlet side second nozzle 4 for water passing which is disposed to be connected to the inlet side first nozzle 3 through a communicating passage 8 and whose cross sections orthogonal to its center axis increases gradually from the inlet 4e to the outlet 4f, and (c) a side chamber 8b which opens only to the communicating passage 8. COPYRIGHT: (C)2009,JPO&INPIT
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