Diesel-internal combustion engine operating method, involves operating diesel internal combustion engine with less air/fuel mixture after operating temperature of flue gas purification system is reached

摘要

The method involves operating a diesel internal combustion engine with a stoichiometric air/fuel mixture until an operating temperature of a flue gas purification system is reached. The diesel internal combustion engine is operated with less air/fuel mixture after operating temperature of the flue gas purification system is reached. The flue gas purification system is arranged in a flow direction of the flue gas, and another flue gas purification system is provided with three-way conversion properties.