Provided is an engine exhaust gas purification device which reduces or eliminates the electric power required for raising the pressure of exhaust gas recirculation (EGR) gas extracted from the upstream side of an exhaust gas turbocharger to be used for EGR...

For exhaust gas recirculation in internal combustion engines operating, for example, with low sulphur marine diesel oil, an exhaust gas cooler (260) with a cooling unit (272) may be applied that uses a liquid injection system (270) to maintain clean and/or...