Patent ID: 7698894

Claim:
An internal combustion engine, comprising: a crankcase having an internal cavity; an intake manifold connected to the crankcase; an exhaust manifold connected to the crankcase; a turbocharger having a turbine and a compressor, wherein the turbine is connected to the exhaust manifold, wherein the compressor is connected to the intake manifold and includes: a compressor housing having a main air inlet and an annular wall defining an inducer bore; and a secondary inlet passage disposed around the inducer bore, the secondary inlet passage having an inlet slot operatively intersecting the inducer bore to permit the entry of a fluid thereinto through an inlet port, wherein the inlet slot defines an augmented inducer diameter region; a low pressure exhaust outlet passage connected to the turbine; a low pressure intake passage connected to a main inlet of the compressor; and a flow path for communicating at least one of the crankcase and the low pressure exhaust outlet passage to an inlet port of the secondary inlet passage that is separated from the main air inlet for enabling the compressor to draw fluid from at least one of the crankcase and the low pressure exhaust passage without the fluid entering the compressor through the main air inlet.