06725847 is referenced by 46 patents.

A system for protecting an internal combustion engine employing cooled recirculated exhaust gas (EGR) from excessive condensation includes an auxiliary emission control device (AECD) operable to determine when engine operating conditions correspond to a condensing condition resulting in condensation of water at the outlet of the EGR cooler and/or within the intake manifold or intake conduit of the engine. When such conditions occur, the AECD is operable to close the EGR valve and monitor engine operating conditions. When engine operating conditions no longer correspond to the condensing condition, control of the EGR valve is restored to an air handling system associated with the engine.

Title
Condensation protection AECD for an internal combustion engine employing cooled EGR
Application Number
10/120051
Publication Number
6725847 (B2)
Application Date
April 10, 2002
Publication Date
April 27, 2004
Inventor
Wayne Eberhard
Columbus
IN, US
Matthew M Lipinski
Elizabeth Town
IN, US
Michael G Barbieri
Columbus
IN, US
B Jerry Song
Columbus
IN, US
Thomas A Dollmeyer
Columbus
IN, US
Larry J Brackney
Columbus
IN, US
George Brunemann
Cincinnati
OH, US
Agent
Barnes & Thornburg
US
Assignee
Cummins
IN, US
IPC
F02M 25/07
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