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Controls switch to rich operation to NOx to harmless Nitrogen
Filter regeneration and LNA regeneration are separate
Complex; costly; & fuel economy loss
Reference: Volvo Filter Diesel Injector NO x Sensor DOC Valves DOC Diesel Oxidation Catalyst LNA Bypass
Selective-Catalysts Reduction (SCR) Aqueous Urea Solution Tank Ammonia Slip Catalyst Engine 1 2 3 4 5 6 T Air Induction Pump and Injector Atomized Urea Solution Catalyzed Particulate Filter SCR Catalyst Air to Air Cooler C Reference: DDC Turbo-Charge NO EGR