Catalysts for diesel engines and diesel engine, which relates to a filter incorporating such a catalyst.

摘要

The invention describes the preparation of novel catalytic systems based on cu nb k and / or cu ta.sub.k supported, intended to reduce the temperature of soot combustion of diesel engine. The temperature, determined by a thermobalance to which the rate of combustion of the soot is a maximum is situated at 250 - 350 degree c. with a start of combustion to approximately 200 degrees c. in addition, these catalysts are insensitive to the presence of so2 . They have a low selectivity for co. Their performance is a clear improvement with respect to those of the catalytic systems known.