Patent ID: 7343908
Filing Date: 2008-03-18
Classification: F02B,F02M,Y02T

Abstract:
1. An internal combustion engine, comprising: a block defining at least one combustion cylinder; an intake manifold fluidly coupled with at least one said combustion cylinder; an exhaust manifold fluidly coupled with at least one said combustion cylinder; a turbocharger including a turbine fluidly coupled with said exhaust manifold, and a compressor fluidly coupled with said intake manifold; an EGR valve fluidly coupled between said exhaust manifold and said intake manifold, said EGR valve including a valve stem, a shield surrounding said valve stem, a purge air inlet associated with said valve stem, said purge air inlet being in fluid communication with said compressor, and a purge air chamber defined by said shield, said purge air chamber in communication with said purge air inlet.