US Patent Application No: 2011/0271,661

HEAT EXCHANGER METHOD AND APPARATUS FOR ENGINE EXHAUST GAS RECIRCULATION SYSTEM

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Nov 10, 2011
Publication date
May 7, 2010
filing date
12/775,608
serial no
Published
status

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Abstract

A method for operating an internal combustion engine configured to operate lean of stoichiometry includes reducing temperature of a portion of an exhaust gas feedstream recirculated to an intake system of the engine, and reducing mass flowrate of particulate matter and hydrocarbons borne in the recirculated portion of the exhaust gas feedstream upstream of the heat exchanger effective to reduce deposition of particulate matter and hydrocarbons onto and adhesion to surface areas of the heat exchanger.

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Patent Owner(s)

Patent Owner	Address	Total Patents
GM GLOBAL TECHNOLOGY OPERATIONS LLC	DETROIT, MI	7524

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Knafl, Alexander	-	7	2
Szymkowicz, Patrick G	Shelby Township, MI	19	75

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