EXHAUST SYSTEM FOR VEHICLE WITH COMPRESSION IGNITION ENGINE WITH "START-SHUTDOWN" SYSTEM Russian patent published in 2015 - IPC F01N3/28 F02N11/08 

FIELD: engines and pumps.

SUBSTANCE: invention relates to vehicle exhaust system with engine start-shutdown system. This invention consists in the following: vehicle comprises compression ignition engine with control device and offgas neutralizer. Engine control device defines idling conditions In case idling occurs, the engine is completely shut down Neutralizer comprises cellular carrier solid piece coated with catalytically reactive primer containing one or more noble metals. Said primer is arranged between first upstream primer area and second downstream primer area. Said reactive primer ply in said first area abuts on reactive primer ply in second downstream reactive primer area. Thermal mass in said first upstream reactive primer area is smaller than that in said second area. Total content of noble metal in said first area is larger than that in said second area. Cellular carrier solid piece features total length whereat said first area is confined by its upstream end while downstream end is confined by the point between 20% and 40% of total length of carrier solid piece is measured from inlet end.

EFFECT: higher activity of oxidizing neutralizer at processing of exhaust gas.

11 cl, 1 dwg, 1 tbl