发明授权
- 专利标题: Normally double-closed microvalve
- 专利标题(中): 通常双闭合微型阀
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申请号: US11223828申请日: 2005-09-09
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公开(公告)号: US07631852B2公开(公告)日: 2009-12-15
- 发明人: Martin Richter , Juergen Kruckow
- 申请人: Martin Richter , Juergen Kruckow
- 申请人地址: DE Munich
- 专利权人: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 当前专利权人: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 当前专利权人地址: DE Munich
- 代理商 Daniel J. Santos
- 主分类号: F16K31/126
- IPC分类号: F16K31/126 ; F04B17/00
摘要:
A normally closed microvalve includes a fluid inlet, a fluid outlet, a deflectable closing element, which, in the closed state of the microvalve, is seated on a sealing lip, such that the fluid inlet is fluidically disconnected from the fluid outlet, and in the opened state of the microvalve, is spaced apart from the sealing lip, and a deflectable holding structure which is connected to the closing element such that, between the same, a space exists, which is in fluidic communication to the fluid outlet. An influence of a force onto the holding structure and the closing element in a first direction provides an opening-action to the microvalve, while an influence of a force onto the holding structure and the closing element in a second direction provides a closing-action. The fluid inlet and the closing element are arranged such that a pressure at the fluid inlet exerts a force in the second direction. An effective surface of the holding structure, which, when a pressure is applied to the fluid outlet, causes a force in the second direction, is greater than an effective surface of the closing element, which, when a pressure is applied to the fluid outlet, causes a force in the first direction.
公开/授权文献
- US20060027772A1 Normally double-closed microvalve 公开/授权日:2006-02-09
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