Piston engine for motor vehicles with forced mixing of gases due to feeding hot exhaust gases into relatively cool fresh air, for low gas mixture temperature

摘要

The engine has fresh air feed (3), exhaust guide (7) and exhaust return (11), to feed exhaust gas from guide into fresh air feed. A mixer unit (14) has an exhaust intake connected to the exhaust return, and a fresh air intake, connected to the feed. It contains mixer components for forced mixing of exhaust and fresh air. An air outlet of the unit is connected to the fresh air feed and exhaust mixed with fresh air passes from the mixer unit through the air outlet.