Motor assembly
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United States of America Patent
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Nov 22, 2016
Grant Date -
Dec 31, 2015
app pub date -
Sep 4, 2015
filing date -
Mar 5, 2013
priority date (Note) -
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Abstract
A motor assembly for a motor vehicle includes an internal combustion engine that has an exhaust gas purification device and a heat engine. The heat engine has at least one closed working space that is filled with a gas. The at least one closed working space includes first and second cylinders, which are each movably mounted in the longitudinal direction between initial and expansion positions. The heat engine includes at least one heating unit for heating the gas in at least one heating region of the closed working space and at least one cooling unit for cooling the gas in at least one cooling region of the closed working space. The gas heated in the heating region pushes the first piston from its initial position into its expansion position, and then flows through the overflow line into the cooling region such that the second piston is then pushed into its expansion position. The overflow line leads at least in sections through the exhaust gas purification device.
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