Air-intake duct system for internal combustion engines

摘要

Systems are already known in which recycling of exhaust gases takes place via a separate valve with lines with which, in some instances, inaccurate distribution of exhaust gases results. The novel system has the features of the exhaust-gas recycling duct (4) having a line section (5) which protrudes into the air-intake duct (3) and has a valve seat (6) which interacts with a valve disc (7) of an electromagnetic actuating drive (8). By this means, very good distribution of exhaust gases can be achieved and the design is mechanically very simple.