Bubble formation device and bubble formation method
AssigneeKagoshima University
InventorsTakashi Goshima, Yudai Mikuni
Life of this patent
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Abstract
A bubble formation apparatus (500) includes: a rotor (100); a container (200) in which the rotor (100) is housed together with a liquid (LQ) and a gas (GS); and a rotary device (300) that causes rotation of the rotor (100) with the rotor (100) being pressed against an inner lower surface (221) that is the inner surface of the container (200). A bubble is formed by periodically repeating pressurization and depressurization of a mixture of the gas (GS) and the liquid (LQ) in a gap between the inner lower surface (221) and a portion, pressed against the inner lower surface (221), of the rotor (100) due to the rotation of the rotor (100) by the rotary device (300).
Claims18
A bubble formation apparatus comprising:
- a rotor;
- a container in which the rotor is housed together with a liquid and a gas, the container having an inner lower surface, an inner upper surface facing the inner lower surface, and an inner side surface that joins the inner upper surface and the inner lower surface to each other;
- and
- a rotary device that causes rotation of the rotor with (i) a locally narrowed first gap being provided between the inner lower surface and a portion, pressed against the inner lower surface, of the rotor by the rotor being pressed against the inner lower surface of the container and (ii) a locally narrowed second gap being provided between the inner side surface and the rotor by the rotor being closer to a portion of the inner side surface of the container,
- wherein a bubble is formed by (I) periodically repeating local pressurization of a mixture of the gas and the liquid in the first gap and depressurization of the mixture performed when the mixture flows out from the first gap, and (II) periodically repeating local pressurization of the mixture in the second gap and depressurization of the mixture performed when the mixture flows out from the second gap, due to the rotation of the rotor by the rotary device.
A bubble formation method comprising:
- encapsulating a rotor, together with a liquid and a gas, in a container having an inner lower surface, an inner upper surface facing the inner lower surface, and an inner side surface that joins the inner upper surface and the inner lower surface to each other;
- and
- causing rotation of the rotor with (i) a locally narrowed first gap being provided between the inner lower surface and a portion, pressed against the inner lower surface, of the rotor by the rotor being pressed against the inner lower surface of the container and (ii) a locally narrowed second gap being provided between the inner side surface and the rotor by the rotor being closer to a portion of the inner side surface of the container,
- wherein in the causing the rotation, a bubble is formed by (I) periodically repeating local pressurization of a mixture of the gas and the liquid in the first gap and depressurization of the mixture performed when the mixture flows out from the first gap and (II) periodically repeating local pressurization of the mixture in the second gap and depressurization of the mixture performed when the mixture flows out from the second gap, due to the rotation of the rotor by the rotary device.
A bubble formation apparatus comprising:
- a rotor;
- an enclosure in which the rotor is housed together with a liquid and a gas, the enclosure having an inner lower surface, an inner upper surface facing the inner lower surface, and an inner peripheral surface that joins the inner upper surface and the inner lower surface to each other;
- and
- a rotary device that causes rotation of the rotor with the rotor being pressed against the inner lower surface of the enclosure and closer to one side of the inner peripheral surface,
- wherein the rotary device is magnetically coupled to the rotor via the enclosure, to thereby cause the rotor to rotate with the rotor being pressed against the inner lower surface of the enclosure.
Dependencies are inferred from the claim text.