Surface for directional fluid transport including against external pressure

A capillary structure for passive, directional fluid transport, includes a capillary having a forward direction and a backward direction extending in an x-y plane and a depth extending in a z-direction, the capillary including first and second capillary units each having a diverging section having a...

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Bibliographische Detailangaben
Hauptverfasser: Ng, Wing-Chak, Forthofer, Marsha R, Goeders, Karen M, Buchberger, Gerda, Baumgartner, Werner, Hischen, Florian
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A capillary structure for passive, directional fluid transport, includes a capillary having a forward direction and a backward direction extending in an x-y plane and a depth extending in a z-direction, the capillary including first and second capillary units each having a diverging section having a backward end, a forward end, and a width in the y-direction, wherein the width increases from the backward end to the forward end, wherein the backward end of the second capillary unit diverging section is connected to the forward end of the first capillary unit diverging section to form a transition section having a step decrease in width from the forward end of the first capillary unit diverging section to the backward end of the second capillary unit diverging section, and wherein the depth in the transition section is less than the depth in each diverging section.