Exhaust gas heat exchanger

Details Exhaust gas heat exchanger Exhaust gas heat exchanger

F - Mech Eng,Light,Heat,Weapons

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F28F 1/06 (2006.01) F01N 3/04 (2006.01) F02M 25/07 (2006.01) F28D 7/10 (2006.01) F28D 9/00 (2006.01) F28F 3/08 (2006.01) F28F 13/06 (2006.01)

Patent

CA 1090778

ABSTRACT A heat exchanger for utilization in an exhaust gas recirculation system of an automotive internal combustion engine to reduce the temperature level of the exhaust gas from the combustion cycle that is metered from the exhaust manifold and recycled through the combustion cycle. The heat exchanger includes a pair of generally conformably nesting shells providing a relatively narrow chamber or envelope for fluid movement generally encompassing a central chamber in the inner shell for the hot gases; the central chamber having a turbulizer or fin member to enhance move- ment of heat outwardly from the exhaust gas passing there- through to the fluid circulating through the outer envelope. The inner chamber may have a central spreader acting to move the exhaust gas outwardly toward the outer wall of the inner shell.

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