DISPOSITIVO PER IL RICICLO DI GAS DI SCARICO PER MOTORI A COMBUSTIONE INTERNA.

摘要

In an exhaust-gas recycling device for internal-combustion engines, especially diesel engines, in which the exhaust-gas recycling quantity is controlled as a function of the engine running via an exhaust-gas recycling valve mounted in the exhaust-gas recycling line, it is to be possible to regulate the exhaust-gas recycling flow quantity independently of flow resistances changing in the fresh-gas intake and exhaust-gas lines. For this purpose, changes of flow resistance in the fresh-gas intake and exhaust-gas lines are fed as additional pressure control signals to the exhaust-recycling valve. A change of flow resistance in the exhaust-gas line can occur particularly as a result of a soot burn-off filter which is installed there an on which the soot is burnt off at irregular time intervals.