Micro channel unit

Details Micro channel unit Micro channel unit

2005-03-15

2005-03-15

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

C138S037000, C137S806000, C137S833000

Reexamination Certificate

active

06866067

ABSTRACT:
A micro channel unit having a shape designed to reduce a pressure drop when fluid passes through a connecting channel portion is provided. The micro channel unit includes a micro channel with a width of micrometer dimensions through which liquid flows. The micro channel includes a plurality of straight channel portions and connecting channel portions that connect each pair of adjacent straight channel portions. The connecting channel portions are wider than the straight channel portions connected by the connecting channel portions. The use of the micro channel unit can reduce the pressure drop when fluid passes through the connecting channel portions, thereby reducing the amount of power required to drive the fluid flow and further enabling miniaturization of microfluidic devices such as pumps and peripheral devices.

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Lim, S. & Choi, H. 2003, “Optimal Shape Design of Pressure-driven Curved Micro Channels with Hydrophilic and Hydrophobic Walls”; Nanotech 2003, San Francisco, CA USA, Feb. 23-27, 2003 (vol. 1, pp. 170-173).
Lim, S. & Choi. H. 2004; “Optimal Shape Design of a Pressure-driven Curved Micro Channel”; 42nd AIAA Aerospace and Sciences Meeting and Exhibit, Reno, NV USA, Jan. 5-8, 2004, AIAA-2004-624.

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