METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE HAVING HIGH PRESSURE AND LOW PRESSURE EXHAUST GAS RECIRCULATION
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United States of America Patent
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Issued Date -
May 15, 2014
app pub date -
Nov 11, 2013
filing date -
Nov 10, 2012
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method for operating an internal combustion engine, a turbine of an exhaust gas turbocharger situated in an exhaust system of the internal combustion engine being driven by exhaust gas from the internal combustion engine, and a compressor of the exhaust gas turbocharger powered by the turbine and situated in a combustion air system of the internal combustion engine compressing combustion air, exhaust gas being diverted in a high pressure exhaust gas recirculation loop upstream from the turbine and mixed with the combustion air downstream from the compressor, exhaust gas being diverted in a low pressure exhaust gas recirculation loop downstream from the turbine and mixed with the combustion air upstream from the compressor, exhaust gas being purified by a low pressure exhaust gas recirculation filter in the LP-EGR loop, a predetermined value for a total exhaust gas recirculation flow.
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