Resonator and crankcase ventilation system for internal combustion engine

An internal combustion engine assembly, comprising:

• an engine block having a crankcase portion configured to at least partially house a crankshaft, and a cylinder case portion proximate to the crankcase portion and defining a plurality of cylinder bores therein, each of the plurality of cylinder bores having a piston reciprocally movable therein;
• an air intake system in fluid communication with each of the plurality of cylinder bores and configured to selectively deliver air-charges thereto;
• a valve cover operatively attached to the engine block, and in fluid communication with the crankcase portion to receive blowby gases therefrom;
• an oil separation unit positively attached to and in fluid communication with the valve cover, and configured to separate entrained oil particulates from blowby gases evacuated therethrough from the valve cover;
• and
• a sound dissipating resonator positively attached to the engine block and having a resonator body defining a resonator volume therein, the resonator body fluidly communicating the oil separation unit to the air intake system, whereby blowby gases are evacuated from the oil separation unit and delivered to the air intake system through the resonator volume.

An internal combustion engine assembly, comprising:

• an engine block having a crankcase portion at least partially housing a crankshaft therein, and a cylinder case portion having first and second cylinder banks each of which defines at least one cylinder bore therein, each of the at least one cylinder bores having a piston reciprocally movable therein and operatively connected to the crankshaft, wherein the first and second cylinder banks are oriented with respect to one another such that they form an angle of less than 180 degrees and define a generally V-shaped interbank valley therebetween;
• an air intake system in fluid communication with each of the at least one cylinder bores and configured to selectively deliver air-charges thereto;
• a cam cover operatively attached to the engine block and configured to at least partially house a camshaft therein, wherein the cam cover is in fluid communication with the crankcase portion to receive blowby gases therefrom;
• an oil separation unit positively attached to and in fluid communication with the cam cover, and configured to separate entrained oil particulates from blowby gases evacuated therethrough from the cam cover;
• a sound dissipating resonator positively attached to the engine block and having a resonator body defining a resonator volume therein, the resonator body in fluid communication between the oil separation unit and the air intake system and fluidly communicating the same, whereby blowby gases are evacuated from the oil separation unit and delivered to the air intake system through the resonator volume;
• and
• a turbocharger device at least partially located within the V-shaped interbank valley, the turbocharger device being in fluid communication with the air intake system and configured to provide compressed airflow thereto, wherein the turbocharger device has an air inlet hose in fluid communication with the resonator body to receive blowby gases therefrom for reintroduction to the air intake system.