COOLING DEVICE
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United States of America Patent
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Issued Date -
Sep 29, 2011
app pub date -
Oct 21, 2008
filing date -
Dec 19, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A cooling device is made compact without impairing the desired cooling efficiency. A secondary cooling device (70) has a heat exchanging part (46) for condensing a vaporized coolant flowing in a condensation path (47) into a liquid coolant, and an evaporator (EP) arranged under the heat exchanging part (46) to vaporize the liquid coolant flowing in an evaporation pipe (52) into the vaporized coolant. The secondary cooling device (70) has a plurality of natural circulation circuits (72) independent of one another. In each natural circulation circuit (72), the liquid coolant flows down from the condensation path (47) of the heat exchanging part (46) to the evaporation pipe (52) of the evaporator (EP) through a liquid piping (48), and the vaporized coolant flows from the evaporation pipe (52) of the evaporator (EP) to the condensation path (47) of the heat exchanging part (46) through a gas piping (50).
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