Abstract: Turbocharger compressor wheels rotate at high speeds resulting in noise which is emitted therefrom. To widen the performance band of turbochargers certain efficiency improvements have increased the noise emitted therefrom above the normal level of acceptability by the operator and spectators. The present device for reducing noise emitted therefrom includes a noise reduction system. The system includes a series of deflector fins forming a torturous path between the series of deflector fins associated with the turbocharger compressor inlet and form a torturous path in a secondary inlet. The series of deflector fins have a preestablished spacing therebetween to further enhance the reduction of noise emitted from the turbocharger.

Abstract: Turbocharger compressor wheels rotate at high speeds resulting in noise which is emitted therefrom. To widen the performance band of turbochargers certain efficiency improvements have increased the noise emitted therefrom above the normal level of acceptability by the operator and spectators. The present device for reducing noise emitted therefrom includes a noise reduction system. The system includes a series of deflector fins forming a torturous path between the series of deflector fins associated with the turbocharger compressor inlet and form a torturous path in a secondary inlet. The series of deflector fins have a preestablished spacing therebetween to further enhance the reduction of noise emitted from the turbocharger.

Abstract: A turbocharged internal combustion engine system including a liquid-cooled internal combustion engine, a heat exchanger for cooling the liquid, a pump for pumping cooled liquid from the heat exchanger to the engine, and a turbocharger including a rotary turbine and a rotary compressor, a housing containing the turbine and the compressor, a shaft interconnecting the turbine and the compressor and bearings journalling the shaft within the housing between the turbine and compressor. Exhaust gases from the engine are directed through the turbine to drive the same and air from the compressor is directed to the engine. A liquid passage is located in the turbocharger housing and is operatively interposed between the turbine and the bearing. The passage has a lower inlet and an upper outlet and liquid coolant from the engine is directed to the inlet.

Abstract: A turbocharged internal combustion engine system including a liquid-cooled internal combustion engine, a heat exchanger for cooling the liquid, a pump for pumping cooled liquid from the heat exchanger to the engine, and a turbocharger including a rotary turbine and a rotary compressor, a housing containing the turbine and the compressor, a shaft interconnecting the turbine and the compressor and bearings journalling the shaft within the housing between the turbine and compressor. Exhaust gases from the engine are directed through the turbine to drive the same and air from the compressor is directed to the engine. A liquid passage is located in the turbocharger housing and is operatively interposed between the turbine and the bearing. The passage has a lower inlet and an upper outlet and liquid coolant from the engine is directed to the inlet.