Patent ID: 8904763

Claim:
An exhaust gas apparatus of an internal combustion engine, comprising: at least one selective catalytic converter; a first catalytic converter disposed upstream of the at least one selective catalytic converter; an inlet point of reducing agent of the selective catalytic converter, the first catalytic converter being disposed upstream of the inlet point of reducing agent; and a second catalytic converter disposed downstream of the selective catalytic converter; wherein the first catalytic converter is a three-way catalytic converter and the proportion of exhaust gas which passes through the selective catalytic converter before being treated in the second converter is adjustable by a volume-adjusting and closure device, the volume-adjusting and closure device permitting a continuously variable adjustment of the proportion of exhaust gas which passes through the selective catalytic converter, and wherein the volume-adjusting and closure device is connected in parallel to a series circuit of the first catalytic converter and the selective catalytic converter.