Turbocharged internal combustion engine arrangement

摘要

A turbocharger 2, 3 internal combustion engine (40) is provided with a combustion chamber 7 to provide extra exhaust gas to drive the turbine 2. The turbocharger is coupled to a motor/generator 4 which can be used as a motor for starting and as a generator during normal running. A turbine 20 downstream of the turbine 2 may assist drive of the motor/generator 4. A further turbocharger (23, 24, Fig. 4) may be flow connected in series with the turbocharger 2, 3 and the combustion chamber 7 and motor/generator 4 may be associated with another turbine/compressor unit (20, 30).