Finned coaxial cooler
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United States of America Patent
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Jun 8, 2021
Grant Date -
Feb 2, 2017
app pub date -
Jul 15, 2016
filing date -
Jul 30, 2015
priority date (Note) -
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Abstract
A heat exchanger (100) for an exhaust gas recirculation system includes one or more rigid tubes (103), each having one or more internal cooling fins (111) that act as heat exchange surfaces to transfer heat from a gas to the walls of the rigid tubes. The rigid tubes are cooled by a liquid coolant contained within an outer jacket (113) surrounding the tubes. The rigid tubes may be straight and smooth, and may be alternated with one or more bellows sections (108, 104) which provide flexibility to the heat exchanger.
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