2009 Fuel Reformer, LNT and SCR Aftertreatment System Meeting Emissions Useful Life Requirements.pdf

2009 Fuel Reformer, LNT and SCR Aftertreatment System Meeting Emissions Useful Life Requirements.pdf

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2009 Fuel Reformer, LNT and SCR Aftertreatment System Meeting Emissions Useful Life Requirements

? 2008 Eaton Corporation. All rights reserved. Fuel Reformer, LNT and SCR Aftertreatment System Meeting Emissions Useful Life Requirements James McCarthy, Jr. Eaton Corporation 2009 DOE DEER Conference Dearborn, MI August 5, 2009 2 22009 DOE DEER Conference – Dearborn, MI Topics ? Introduction to Eaton Aftertreatment ? Vehicle and Dyno Test Results ? Durability Test Results ? System Packaging ? Summary 3 32009 DOE DEER Conference – Dearborn, MI Introduction Eaton Aftertreatment System How it Works: ? Engine NOx is reduced by the Lean NOx Trap (LNT) and Selective Catalytic Reduction (SCR) catalysts. ?The LNT stores NOx and undergoes controlled periodic regeneration, releasing the NOx as nitrogen and ammonia. ?The SCR collects the released ammonia and uses it to continuously treat the remaining NOx. ?A Diesel Particulate Filter (DPF) traps Particulate Matter (PM) and undergoes periodic regeneration. LNT – Lean NOx Trap SCR – Selective Catalyst Reduction DPF – Diesel Particulate Filter Controller ModuleDiesel Pipe/mixer assembly sensors fuel pressure control shut-off Reformer ? Hydrogen/CO Production LNT ? 1st Stage NOx Control ? Ammonia Production DPF ? PM Control SCR ? 2nd Stage NOx Control ? NH3 Storage and Usage fuel doser 4 42009 DOE DEER Conference – Dearborn, MI Introduction Value Proposition Controller Module fuel doser Pipe/mixer assembly Diesel sensors fuel pressure control shut-off Reformer LNT DPF SCR LNT – Lean NOx Trap SCR – Selective Catalyst Reduction DPF – Diesel Particulate Filter Customer Values Product Differentiation ? Compliance with strict diesel emission standards ? Single fluid system (one dosing system needed) ? Independent of urea solution infrastructure ? Eliminates urea sensors and compliance-related penalties ? Reliable aftertreatment system ? Flexible, customized and smaller packaging ? Scalable with engine power (size) 5 52009 DOE DEER Conference – Dearborn, MI Topics ? Introduction to Eaton Aftertreat

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