Patent ID: 6401455
Filing Date: 2002-06-11
Classification: B01D,F01N,Y02T

Abstract:
An exhaust emission control system for an exhaust gas of a diesel engine, comprising:an exhaust pipe having a main axis; an exhaust gas inlet pipe aligned along said main axis of said exhaust pipe and connected to said exhaust pipe for receiving an exhaust gas having a flow direction; an injection device disposed in said exhaust pipe for injecting a reducing agent; a mixing device disposed in said exhaust pipe entirely upstream of said injection device, as seen in the flow direction of the exhaust gas; a catalyst device disposed in said exhaust pipe externally to said mixing device; and a further mixing device disposed between said injection device and said catalyst device; said exhaust pipe extending along said main axis upstream of said injection device and extending along said main axis downstream of said injection device; said exhaust pipe having a widened region for receiving said catalyst device and a transitional region adjacent said widened region; and said further mixing device being disposed at said transitional region.