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John Deere Engine Pollution Prevention

John Deere Engine Pollution Prevention

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John Deere Engine Pollution Prevention

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  1. John Deere Engine Pollution Prevention Patrick Hosty Robert Weathers

  2. Regulated Emissions< 0.5% Diesel Emissions Products of Combustion Oxygen 6% Nitrogen 75.5% 8% Water Vapor 10% Carbon Dioxide

  3. .8 .6 .4 .2 .0 Off-road Emissions Regulations: 20<100 hp Tier 2: 2001-2004 Tier 3: 2006-2008 Tier 4: 2011-2012 Tier 1: 1996-2001 .8 .8 .8 .6 .6 .6 Particulates (g/kWh) -40% .4 .4 .4 .2 .2 .2 .0 .0 .0 0 2 4 6 8 10 0 2 4 6 8 0 2 4 6 8 0 2 4 6 8 NOx + HC (g/kWh) 20 < 100 hp • Off-road Tier 3 implemented 2006 - 2008 • EPA Tier 4 regulation likely for 2011-2012

  4. Tier reductions

  5. Tier 2 Technologies • Reducing Pm: • Optimized fuel air mixture • Increase injection pressure PM & Fuel Consumption - g/kW hr • Reducing NOx: • Combustion development • Reduce charge air temperature • Retard timing NOx (Oxides of Nitrogen) - g/kW hr

  6. Tier 2 Engine and Vehicle Changes • Tier 2 Engine Changes • Higher pressure fuel injection system • Electronic control of fuel delivery and timing • Air system changes • Tier 2 Vehicle Changes • Charge air cooling on more applications • Redesigned cooling packages on some applications • Electronic interface to engine on most applications • Fuel coolers some applications

  7. Tier 2 Compliance: Impact on Vehicles • Machine power, torque, transient response, cold start, productivity will equal or exceed Tier 1 • Reliability and durability will be equal to Tier 1 • Total operating cost comparable to Tier 1 (application dependent) • Cleaner Tier 2 vehicles should demand higher resale value

  8. Tier 2Impact on End User • Engine changes to fuel injection system, air system • Minor changes to vehicles • Vehicle performance, reliability, total operating cost comparable to Tier 1

  9. Tier 3 Technologies • Reducing Pm: • Optimized fuel air mixture • Increase injection pressure • Post Injection • Oxidation Catalyst A Tradeoff: Fuel Consumption / Heat Rejection vs. Emissions Compliance • Reducing NOx: • Combustion development • Reduce charge air temperature • Retard Timing • Exhaust Gas Re-circulation PM & Fuel Consumption - g/kW hr NOx (Oxides of Nitrogen) - g/kW hr

  10. Tier 3 Engine and Vehicle Changes • Tier 3 engine changes • Exhaust gas re-circulation (EGR) • Variable geometry turbocharger • 4 valves per cylinder (>100HP) • Advanced electronic controls • High-pressure fuel systems • Impermeable gas lines • Tier 3 vehicle changes • Charge air cooling on most applications • Larger radiators, fuel tanks, air cleaners, mufflers, etc. • Improved air flow management and fan systems • Vehicle changes to accommodate cooling needs

  11. Tier 3 Compliance: Impact on Vehicles • Machine power, torque, transient response, cold start, productivity will equal or exceed Tier 2 • Reliability and durability will be equal to Tier 2 • Total operating costs may increase • Fuel consumption ~5% greater than Tier 2 (application dependent) • Deere’s objective is no fuel consumption increase • Packaging will meet customer expectations for visibility and machine operation • Cleaner Tier 3 vehicles should demand higher resale value

  12. Tier 3 Impact on End User • Significant engine changes • EGR, VG turbocharger, etc. • Significant vehicle changes • to accommodate additional cooling needs • Performance and reliability comparable with Tier 2 vehicles • Total operating costs may increase due to increased fuel consumption

  13. Current Ozone Regulations Current Ozone Standard Future Ozone Standard Future standards likely implemented 2003-2005

  14. Emission Reference Info • EPA Emissions & Retrofit Information http://www.epa.gov/otaq/retrofit/ • EPA Certification Information http://www.epa.gov/oms/certdata.htm • Texas http://www.tnrcc.state.tx.us/oprd/sips/terp.html • California http://www.arb.ca.gov/diesel/dieselrrp.htm • Dieselnet http://www.dieselnet.com/standards.html

  15. Oil Improvements • Higher Fire Temps/ Pressures in engines (after 1990) • Prevent forming of carbon deposits, sludge and soot • Different additives for less deposits • Different viscosities-15w40 vs 0w40 2.7% in fuel savings. (3.78 gal/mo/machine)

  16. What is in the future? • Catalytic converters? • Reduce Phosphorus in combustion • Low Sulfur Diesel fuel • New standard of oils (new additives)

  17. John Deere Portable Power Equipment

  18. 2 Cycle Technology

  19. New 2 Cycle Technology

  20. Questions?