Interstage cooling system of a multi-compressor turbocharger, engine and turbocharger comprising such a cooling system, and method of operating the turbocharger

摘要

An interstage cooling system (10) for the turbocharger of an internal combustion engine is disclosed. Diffuser vanes (38), turning vanes 48 and/or deswirling vanes (40) are used as the heat exchangers in the interstage duct (12). A coolant fluid is supplied to the heat exchangers and flows between the heat exchangers, in series, through internal coolant links or through internal cavities as defined by the turbocharger housing. <IMAGE>