Thermoelectric gas sample cooler
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United States of America Patent
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Nov 14, 1995
Grant Date -
N/A
app pub date -
Jan 19, 1994
filing date -
Jan 19, 1994
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Abstract
A thermoelectric cooler for cooling a sample of hot, continuously flowing gas involves a mechanical heat flow path passing from the flowing gas through a heat-exchanging tube channeling the gas, a heat-conductive block housing the tube, a thermoelectric element having a cold side abutting the block, a heat sink abutting a hot side of the thermoelectric element, and cooling air streams passing through slots in the heat sink. The heat sink is a unibody, jointless metallic body having relatively thin fins defining the slots. A high pressure blower drives turbulent air streams through the slots of the heat sink, and a thermal switch is disposed on the heat sink near the hot side of the thermoelectric element.
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