VIRTUAL VALVE IN A MEMS-BASED COOLING SYSTEM
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United States of America Patent
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Issued Date -
Jun 17, 2021
app pub date -
Dec 16, 2019
filing date -
Dec 16, 2019
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Abstract
An active cooling system is described. The active cooling system includes at least one cooling element that has a vent therein and is in communication with a fluid. The cooling element(s) are actuated to vibrate to drive the fluid toward a heat-generating structure and to alternately open and close at least one virtual valve corresponding to the vent. The virtual valve is open for a low flow resistance and closed for a high flow resistance. The vent remains physically open for the virtual valve being closed.
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