Fluid transportation device
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United States of America Patent
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N/A
Issued Date -
Jun 25, 2009
app pub date -
Dec 16, 2008
filing date -
Dec 21, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A fluid transportation device includes a valve seat, a valve cap, a valve membrane, multiple buffer chambers, and an actuating module. The valve seat has an inlet channel and an outlet channel. The valve cap is disposed on the valve seat. The valve membrane is arranged between the valve seat and the valve cap. The multiple buffer chambers include a first buffer chamber between the valve membrane and the valve cap and a second buffer chamber between the valve membrane and the valve seat. Each of the first buffer chamber and the second buffer chamber has a flow-guiding structure extended from an outer edge to a center thereof. The actuating module has a periphery fixed on the valve cap. A pressure cavity is defined between the actuating module and the valve cap. Another flow-guiding structure is formed at an inner edge of the pressure cavity.
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