Device for mixing exhaust gas with fresh air to be returned to a combustion engine

摘要

A device 1 has an air inlet channel 3 with at an end an inlet opening 5 for fresh air 6 and at the other end an outlet opening 7 for a mixture of air and exhaust gas 8. A part 9 of a wall 11 of the air inlet channel is provided with mixing openings 13-17 for supply of exhaust gas. The device 1 further comprises an exhaust gas recirculation channel 19 connected to the mixing openings and provided with an inlet opening 21 for exhaust gas 22. The exhaust gas recirculation channel is over a part of its length in contact with the air inlet channel 3. Over this part the exhaust gas recirculation channel 19 is separated from the air inlet channel 3 by the part 9 of the wall provided with mixing openings 13-17. In the length direction of the channels the mixing openings are behind each other. The other end of the exhaust gas recirculation channel 19 is open and constitutes an outlet opening 23 which is continuously flowing to one of the mixing openings 13.