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Cummins Est du Canada Inc

Cummins Est du Canada Inc. Jocelyn Martel Directeur de succursale Cummins Est du Canada . Bienvenue. EPA Heavy-Duty Engine Emission Standards. Steady State Test. NOx + HC. NOx (Unregulated). Transient Test. NOx. NOx + HC. PM (Unregulated). NOx. PM. NOx + HC. PM. (Proposed)

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Cummins Est du Canada Inc

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  1. Cummins Est du Canada Inc Jocelyn Martel Directeur de succursale Cummins Est du Canada

  2. Bienvenue

  3. EPA Heavy-Duty Engine Emission Standards Steady State Test NOx + HC NOx (Unregulated) Transient Test NOx NOx + HC PM (Unregulated) NOx PM NOx + HC PM (Proposed) NOx = 0.20 PM = 0.01 Urban Bus PM

  4. 90% 73% Summary of Improvements • Particulate Emissions • NOx Emissions

  5. 20+% 50-60% 100+% 67% Summary of Improvements • Engine • Fuel Economy • Performance • Maintenance Intervals • Life-to-overhaul

  6. 200+ Programmable Features 60+ Programmable Features Increasing Flexibility

  7. Our Products Must Meet Customer Needs : Smart Power Highly Sociable Low Initial Cost Low Maintenance Fuel Efficient High Performance Reliable and Durable 7 Technology Themes

  8. Emissions Technology Options • Potential Emissions Solutions Considered for 2002 • Cooled EGR or Uncooled EGR • Miller Cycle • Retarded Injection Timing • Pilot / Multiple Injections • Variable Injection Pressure (Common Rail) • After-treatment Solutions

  9. The Challenge: Alter the Combustion Event 6000 Have a Flame Temperature Low Enough to Control NOx 5500 Temperature [R] 5000 4500 Have a Flame Temperature High Enough to Control Dry Particulate 4000 -30 -20 -10 0 10 20 30 40 50 60 70 80 Crank Angle [CA]

  10. History of Flame Temperature Control to Reduce Exhaust Emissions 6000 Effects of aftercooling 5500 Flame Temperature [R] 5000 1978 Engines 4500 1988 Engines 1994 Engines 4000 -30 -20 -10 0 10 20 30 40 50 60 70 80 Crank Angle [CA]

  11. Air Handling System - 2.5 gm NOx + NMHC Turbocharger Speed VG Control Valve VG Valve Position Sensor VG Turbocharger EGR Valve Position Sensor EGR Control Valve EGR Cooler Venturi ) ( ) ( Mixing Device EGR Measurement

  12. Variable Geometry Turbocharging • Integrated electronic controls • Improves performance • vehicle acceleration from low speeds • Reduces turbo-lag • Increases engine braking power • Allows for higher power from smaller engines • Reduces driver shifts • Improves fuel economy • Lowers emission levels

  13. Uncooled EGR 15% Fuel Penalty Cooled EGR 10% Retarded Injection Timing 5% NOx 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 What is the Trade-Off? NOx versus Fuel Economy Current development work aimed at driving this down. ISB rating is 2% BETTER with EGR

  14. 20% Lean NOx Catalyst 15% Catalyst-Out Engine-Out Fuel Penalty 10% Retarded Injection Timing D=9% 5% Cooled EGR 0 NOx 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Why not after-treatment?Lean NOx catalyst system is significantly worse in fuel economy

  15. Engine Design -- Mutually Dependent Design Capabilities Behr-Cummins JV 1000/day High Peak Cylinder Pressure 35,000+ psi capability “Paradigm shift” - Translates to better fuel economy High Peak Injection Pressure Heat Rejection Capability High Turbo Compressor Pressure Variable Engine Delta-P Control Titanium Compressor Wheel 3,000 Holset VG Turbo 40,000

  16. Air Handling System

  17. Intake and EGR Mixing Device

  18. Merci de votre participation

  19. Questions ?

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