Patent ID: 8539770

Claim:
An exhaust arrangement ( 16 ) for an internal combustion engine ( 10 ) comprising: a first exhaust duct ( 18 ) for an exhaust flow from the engine ( 10 ); a second exhaust duct ( 20 ) for an exhaust flow from the engine ( 10 ); a valve arrangement ( 22 , 24 ) configured to selectively direct exhaust from the engine during an exhaust stroke to the first exhaust duct ( 18 ) during a first phase of the exhaust stroke, and to the second exhaust duct ( 20 ) during a subsequent second phase of the exhaust stroke; a turbine ( 28 ) having an inlet ( 26 ) connected to the first exhaust duct ( 18 ) and an outlet ( 40 ); and a compressor ( 32 ) drivingly connected to and driven by the turbine ( 28 ), and having an inlet ( 34 ) connected to the second duct ( 20 ) and an outlet ( 38 ).