EGR and blow-by flow system for highly turbocharged diesel engines

In combination:

• a turbocharged diesel engine assembly including a diesel engine, a turbocharger, an engine gas flow line from said diesel engine for routing engine gas out of said diesel engine, and a fresh charge air flow line from said turbocharger to said diesel engine so as to deliver fresh charge air from said turbocharger to said diesel engine;
• a venturi conduit placed in said fresh charge air flow line between said turbocharger and said engine, said venturi conduit having a throat area and defining a flow path therethrough for said fresh charge air;
• and
• a control valve attached to said throat area and having a passageway therethrough and being disposed in flow communication with the flow path through said venturi conduit, said passageway intersecting said flow path at a location which coincides with said throat area, said passageway being connected in flow communication with said engine gas flow line whereby engine gas exiting from said diesel engine and flowing through said engine gas flow line is able to be blended with fresh charge air due to a low static pressure created by said venturi, the introduction of engine gas into said venturi conduit being controlled by said control valve.