Exhaust gas recirculation device for heat engine, has recycling duct with bypass junction at downstream of heat exchanger, where bypass junction is connected to bypass duct, and end of recycling duct is connected to exhaust duct

摘要

The device has a recycling duct (13) whose one end is connected to an exhaust duct (5) of a heat engine (1), and another end is connected to an inlet duct (3) of the engine. A heat exchanger (16) is disposed on a section of the recycling duct for cooling recycled gas. The recycling duct has a bypass junction (17) at a downstream of the heat exchanger, where the bypass junction is connected to a bypass duct (19). The heat exchanger has inlet/outlet channels (21) for circulating a coolant between the exchanger and heat producing device. An independent claim is also included for a method for controlling exhaust gas of a heat engine.