EXHAUST GAS RECIRCULATION COOLER

摘要

PROBLEM TO BE SOLVED: To prevent clogging of a pipeline caused by the accumulation of acid attachment in an exhaust gas recirculation system of an internal combustion engine of a motor vehicle and to save the space in the installation of the exhaust gas recirculation system. SOLUTION: A device for transferring gas between an inlet hole 203 and an outlet hole 202 of an internal combustion engine is provided with a first outer member 200 of approximately tube shape having a first end part 206 and a second end part 207 with an outer tubular wall extending between, and a plurality of second inner members 204 of approximately tube shape stored in the first outer member 200 of approximately tube shape and corrugated at least at a part of the whole length.