EXHAUST LINE FOR A MOTOR VEHICLE WITH A CLOSED RECOVERY CYCLE FOR EXHAUST GAS HEAT ENERGY, AND ASSOCIATED CONTROL METHOD
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United States of America Patent
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Issued Date -
Apr 19, 2012
app pub date -
Mar 25, 2010
filing date -
Mar 25, 2009
priority date (Note) -
Abandoned
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Abstract
An exhaust line of a motor vehicle includes a heat exchanger having a first side for circulating the exhaust gases and a second side for circulating a heat exchange fluid, and a closed recovery cycle for one portion of the heat energy of the exhaust gases, in which said heat exchange fluid circulates, wherein the second side of the heat exchanger is inserted inside the closed cycle. The heat exchanger includes an intermediate wall interposed between the first and second sides of the heat exchanger. The intermediate wall comprises at least one closed cavity including a phase change material. The intermediate wall has a first exchange surface in thermal contact with the exhaust gases and a second exchange surface in thermal contact with the heat exchange fluid.
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