Patent ID: 6209324
Filing Date: 2001-04-03
Classification: F02B,F02M,Y02T

Abstract:
An Exhaust turbocharger for an internal combustion engine comprising:a main compressor for compressing fresh air to be supplied to the engine,an additional compressor for compressing the combustion exhaust gases recycled to engine,a turbine that can be driven by the exhaust gases from the engine and which serves to drive the main compressor and the additional compressor,an exhaust return line by which the exhaust gases to be returned to the engine are supplied to the additional compressor, anda boost air line by which the air compressed in the main compressor is supplied to the engine,wherein the turbine has a variable geometry and a first control member is located in the exhaust return line to selectively connect the exhaust return line to the intake side of the additional compressor and to the boost air line.