Process for realising a catalytic layer in a combustion chamber of an internal combustion engine by means of a plasma-spray.

摘要

The present invention relates to a process for producing a catalytic layer especially in the combustion chamber of an internal-combustion engine. This process involves depositing in a precombustion chamber (1) a ceramic material (10) of open porosity of between approximately 5 and 20 %, projected onto the wall of the precombustion chamber by means of a plasma jet (3), and a material of catalytic effect deposited by liquid means on the ceramic material (10) and impregnating the open pores of the ceramic support. This process allows decontamination at source of the exhaust gases emitted by the engines of any motor vehicles. <IMAGE>