Patent ID: 8978359
Filing Date: 2015-03-17
Classification: F01N,F02B,Y02T

Abstract:
1. A turbocharged internal combustion engine, comprising: an engine block with a first end side opposing a second end side having a plurality of cylinders connected to a crankshaft having an axis of rotation, the crankshaft; having a longitudinal axis along the axis of rotation extending between the first end side and the second end side; a two-stage turbocharged system comprising a low-pressure stage turbocharger mounted along the first end side of the engine block and comprising a first turbine and a first compressor configured for pre-compressing charge air during operation of the turbocharged internal combustion engine, a high-pressure stage turbocharger mounted along the second end side of the engine block and comprising a second turbine and a second compressor configured for compressing the pre-compressed charge air during operation of the turbocharged internal combustion engine, a compressor connection fluidly connecting the first compressor and the second compressor; and a turbine connection fluidly connecting the first turbine and the second turbine; a selective catalytic reduction catalyst positioned within a catalyst section of the turbine connection; an exhaust manifold fluidly connecting exhaust outlets of the plurality of cylinders with an inlet of the second turbine; and an outlet of the second turbine connecting to an inlet of the first turbine; and an injection system with an injection inlet configured for injecting a chemical substance for the selective catalytic reduction through the injection inlet into the exhaust manifold and/or the second turbine.