COOLING DEVICE OF SUPERCHARGER OF INTERNAL COMBUSTION ENGINE COMPRISING BLOW-BY GAS CIRCULATION DEVICE

摘要

The purpose of the present invention is to suppress the occurrence or accumulation of deposits in a compressor of a supercharger in an internal combustion engine comprising a blow-by gas circulation device. The present invention pertains to a cooling device of a supercharger (60) of an internal combustion engine (10) comprising a blow-by gas circulation device (50). The cooling device comprises a cooling air inlet passage (70). The blow-by gas circulation device leads in a blow-by gas upstream of a compressor. The cooling air inlet passage leads cooling air into a diffuser passage (64) of the compressor. The cooling air inlet passage leads cooling air into the diffuser passage at an acute angle relative to the flow direction (IA) of intake air flowing through the diffuser passage.