Exhaust gas feedback device - is used to reduce concn. of nitrous oxide in exhaust gases from petrol IC engines and comprises two superimposed metal plates.

摘要

The exhaust gas feedback device incorporates two superimposed metal plates, of which at least one has a first inflated area (3) with a relatively large cross-section for the formation of a main channel (4) and at least a second inflated area (5) in connection with one side of the first such area, and which has a relatively small cross-section. A branch channel (6) is thus formed in connection with the main channel (4). The metal plates are joined to each other except in the areas which are inflated and the second metal plate has a gas inlet (7) in connection with the main channel (4) and at least one gas outlet (8) in connection with the branch channel (6) and for connection with a suction elbow. USE/ADVANTAGE - To reduce the content of nitrous oxide in the exhaust gases of a petrol-driven IC engine.