Patent ID: 6324847
Filing Date: 2001-12-04
Classification: F02B,F02M,Y02T

Abstract:
An internal combustion engine, comprising:a plurality of combustion cylinders;a first exhaust manifold and a second exhaust manifold, each said first exhaust manifold and said second exhaust manifold coupled with a plurality of said combustion cylinders;an intake manifold coupled with said plurality of combustion cylinders;an EGR system disposed in fluid flow communication between said first exhaust manifold and said intake manifold;a turbocharger including a compressor having an inlet receiving combustion gas and an outlet in fluid flow communication with said intake manifold, and a turbine drivingly coupled to said compressor, said turbine having a turbine casing and a turbine wheel disposed in said casing, said casing defining a bifurcated inlet and an outlet, said turbine bifurcated inlet having a first inlet path in fluid flow communication with said first exhaust manifold and a second inlet path in fluid flow communication with said second exhaust manifold, said first inlet path being of smaller volume than said second inlet path;a mixer in fluid flow communication to receive fluid flows from said EGR system and from said compressor outlet, and to provide a mixture of said flows to said intake manifold; anda fluid bypass conduit interconnecting said compressor outlet and said intake manifold for selectively bypassing said mixer.