Patent ID: 8534047
Filing Date: 2013-09-17
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. A method comprising: providing a system including a combustion engine, a combustion engine breather system comprising an air intake side constructed and arranged to deliver combustion air to the engine, a combustion exhaust side constructed and arranged to capture combustion exhaust from the engine, a first exhaust gas recirculation assembly extending from the air intake side to the combustion exhaust side, the first exhaust gas recirculation assembly comprising a primary exhaust gas recirculation line and a cooler in fluid communication therewith constructed and arranged to cool fluid flowing through the cooler, and a bypass line constructed and arranged to flow exhaust gas around the cooler and so the gas flowing through the bypass line is not substantially cooled by the cooler; obtaining information representative of the amount of NOX and the amount of particulate matter being produced by the combustion engine; adjusting the amount of NOX and the amount of particulate matter being produced by the combustion engine comprising controlling the amount of combustion engine exhaust gas re-circulated through the exhaust recirculation gas cooler and through an exhaust recirculation gas cooler bypass using the information; and wherein the system further comprises a controller system and wherein the obtaining information comprises the controller system receiving information from a temperature sensor in the primary exhaust gas recirculation line.