Patent ID: 6681171
Filing Date: 2004-01-20
Classification: F01P,F02B,F02D,F02M,Y02T

Abstract:
A system for reducing or eliminating EGR condensation within an intake manifold of an internal combustion engine having an EGR circuit for recirculating exhaust gas to be combined with charge air upstream of the intake manifold, the engine including a charge air circuit having a turbocharger with a compressor for compressing intake air and having a charge air cooler positioned downstream from the turbocharger compressor, the system comprising:means for selectively increasing charge air temperature prior to combining the charge air with recirculated exhaust gas in response to a command signal; and a controller in communication with the means for selectively increasing charge air temperature, the controller monitoring current ambient and engine operating conditions and generating the command signal when the current ambient and engine operating conditions are favorable for condensation.