Patent ID: 8495875
Filing Date: 2013-07-30
Classification: F02B,Y02T

Abstract:
1. A turbocharger for an internal combustion engine, in which mechanical energy flow is generated from engine exhaust gas flow and is fed to provide intake airflow to the internal combustion engine, said turbocharger comprising: an exhaust gas turbine positioned for receiving engine exhaust gas from an externally-positioned internal combustion engine, wherein the exhaust gas turbine is operative for providing mechanical energy from the engine exhaust gas; an intake airflow compressor positioned at an engine intake airflow conduit of the externally-positioned internal combustion engine for providing air under pressure to the externally-positioned internal combustion engine; a mechanical energy converter connected between the exhaust gas turbine and the intake airflow compressor for receiving mechanical energy provided by the exhaust gas turbine and for providing mechanical energy to the intake airflow compressor; and a rotatable electrical energy converter operatively connected with the mechanical energy converter for receiving mechanical energy from the exhaust gas turbine and for converting received mechanical energy output into electrical energy, wherein the electrical energy converter is operative for converting received electrical energy from an electrical energy accumulator into mechanical energy for supply to the mechanical energy converter and to the intake airflow compressor, whereby a flow of electrical energy from the electrical energy converter can be selectively branched to the electrical energy accumulator from a received flow of mechanical energy by the electric energy converter, and whereby a flow of electrical energy can be provided to the electrical energy converter from the electrical energy accumulator to drive the intake airflow compressor.