Installation of an internal combustion engine with catalyst accumulator azo oxide and method for operating the same.

摘要

The invention relates to a set of internal combustion engine with a combustion engine (1) and corresponding SYSTEM EXHAUST ENGINE (4), a cleaning system EXHAUST FUMES WITH A storage catalytic converter NO X (5) disposed in one of the branches EXHAUST, A PROBE LAMBDA (6) TO DETERMINE THE PROPORTION OF AIR ENGINE AND MEANS FOR DESULFATIZACION PERIODICA CATALYST A HIGHER TEMPERATURE AND PROPORTION RICA AIR THEREOF, AS WELL AS A method of operating SUITABLE for this installation. ACCORDING TO THE INVENTION, DESULFATIZACION MEDIA CONTAINING means secondary air feed (8, 9) for injecting secondary air into THE NO X storage catalytic converter. ACCORDING TO THE PROCEDIMIENT OR DURING PHASES Desulphation the engine works with a rich air ratio and doses secondary air to the catalyst. UTILIZATION FOR EXAMPLE IN AUTOMOBILES.