发明名称 |
Fluidic device and method for separation of neutrally buoyant particles |
摘要 |
<p>A technique using a curved channel of a spiral device to introduce a centrifugal force upon neutrally buoyant particles flowing in a fluid, e.g. water, to facilitate improved separation of such particles from the fluid is provided. As these neutrally buoyant particles flow through the channel, a tubular pinch effect causes the particles to flow in a tubular band. The introduced centrifugal force perturbs the tubular band (e.g. forces the tubular band to flow in a manner offset from a center of the channel), resulting in an asymmetric inertial migration of the band toward the inner wall of the channel. This allows for focusing and compaction of suspended particulates into a narrow band for extraction. The separation principle contemplated herein implements a balance of the centrifugal and fluidic forces to achieve asymmetric inertial equilibrium near the inner sidewall.
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申请公布号 |
EP2060312(A3) |
申请公布日期 |
2011.03.16 |
申请号 |
EP20080168573 |
申请日期 |
2008.11.07 |
申请人 |
PALO ALTO RESEARCH CENTER INCORPORATED |
发明人 |
LEAN, MENG H.;SEO, JEONGGI |
分类号 |
B01D45/04;B01D45/12;G01N15/02 |
主分类号 |
B01D45/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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