| 摘要 |
PURPOSE: An oxygen feeder system employs an ejector to replace a conventional water wheel(a propeller type) system and maintain a desired concentration of dissolved oxygen in water for fish raising. CONSTITUTION: The oxygen feeder system re-circulates water from the fish tank with a pump through a compressed water tank for an ejector to suck air through an active air tank to deliver the air to the compression tank. Numerals in the drawing indicates: 1 floats, 6 a motor, 7 a pump, 8 a compressed water tank, 9 an ejector, 9-1 ejector of two or more, 10 an active air tank, 11 a connective pipe.
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