Exhaust gas purification device for vehicle engine comprises nitrogen oxides adsorber with adsorber channels connected in parallel

摘要

Exhaust gas purification device comprises nitrogen oxides adsorber with adsorber channels connected in parallel. The nitrogen oxides-containing gas stream is fed to first part of adsorber channels and hydrogen-containing gas stream is fed to second part of adsorber channels. The adsorber channels assigned to first part and adsorber channels assigned to second part can be exchanged depending on the number of them.