Device and method for stirring at least one liquid
AssigneeHahn-Schickard-Gesellschaft fuer angewandte Forschung e.V.
InventorsNils Paust, Arne Kloke, Felix Von Stetten, Jens Liebeskind
Life of this patent
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Abstract
A device for stirring at least one liquid includes a fluidics module rotatable about an axis of rotation, a liquid chamber for the liquid within the fluidics module, an introducer for introducing mutually separate phase volumes of a phase different from the liquid, said phase volumes having a different density than the liquid, into the liquid within the liquid chamber, and a driving device for subjecting the fluidics module to such a rotation that the phase volumes are moved radially inward or outward in relation to the axis of rotation through the liquid due to the different density of the phase volumes and of the liquid and due to the centrifugal forces caused by the rotation.
Claims11
A method of stirring at least one liquid, comprising:
- providing a fluidics module comprising a fluid chamber and a liquid chamber, said fluid chamber being fluidically connected to a radially outer portion of the liquid chamber via a fluid line,
- subjecting the fluidics module to rotation about an axis of rotation and generating, in a gas within the fluid chamber, an overpressure such that separate gas bubbles are introduced into at least one liquid arranged within the liquid chamber via the fluid line, the gas of the separate gas bubbles having a smaller density than the at least one liquid,
- wherein while the fluidics module is subject to said rotation, the separate gas bubbles are moved radially inward in relation to the axis of rotation of the fluidics module through the at least one liquid due to the smaller density of the gas bubbles and due to the centrifugal forces caused by the rotation,
- wherein, while the fluidics module is subject to said rotation, the at least one liquid is prevented from passing through the fluid line from the liquid chamber into the fluid chamber.
A method of stirring at least one liquid, comprising:
- providing a fluidics module comprising a fluid chamber and a liquid chamber, said fluid chamber being fluidically connected to a radially inner portion of the liquid chamber via a fluid line,
- subjecting the fluidics module to rotation about an axis of rotation and generating, in a second liquid in the fluid chamber, an overpressure such that separate drops of the second liquid are introduced into a first liquid arranged within the liquid chamber via the fluid line, the second liquid having a larger density than the first liquid,
- wherein, while the fluidics module is subject to said rotation, the separate drops of the second liquid are moved radially outward in relation to the axis of rotation of the fluidics module through the first liquid due to the larger density of the second liquid and due to the centrifugal forces caused by the rotation,
- wherein, while the fluidics module is subject to said rotation, the first liquid is prevented from passing through the fluid line from the liquid chamber into the fluid chamber.
Dependencies are inferred from the claim text.