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Next Generation Natural Gas Engine

Explore the latest advancements in natural gas engines for buses and trucks, offering economic benefits, emissions leadership, and enhanced efficiency. Discover how these engines are shaping the future of transportation.

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Next Generation Natural Gas Engine

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  1. Next Generation Natural Gas Engine 2007

  2. Joint Venture Company • New market development & demonstration initiatives • Alternative fuel industry & government relations • Next generation technology programs • Corporate finance & communications • Global manufacturing (India, China, Brazil) & supply chain management • Base diesel engine platform & OEM alliances • Global distribution and service network • Industry & government relations . • Develop, market and sell leading line of gaseous fueled, high performance, low emission, economically viable engines • Create OEM availability; develop sales channels and industry alliances • Control product specifications, pricing, marketing, international manufacturing initiatives

  3. Why Natural Gas Engines for Buses & Trucks? Emissions Leadership • Meet 2010 EPA Emissions in 2007 Economic Benefits • Continued reliability improvement • Improved Efficiency • Greatest benefits in high fuel use applications • Energy Security • Reduced reliance on imported oil • Pathway to hydrogen

  4. CWI Engine Reliability Improvement

  5. Key Characteristics-Diesel vs. NGNatural Gas Engines Continuous Improvement

  6. 7 C8.3 G C Gas Plus 6 5 4 Relative Cost 3 2 1 0 1999 3 1999 4 2000 1 2000 2 2000 3 2000 4 2001 1 2001 2 2001 3 2001 4 2002 1 2002 2 2002 3 2002 4 Build Quarter C Gas Plus Reliability Improvement C8.3G / C Gas Plus - Reliability Six Fold Reliability Improvement

  7. Customer Profile: Pierce Transit • Transit agency for Tacoma/Pierce County, WA • Total fleet: 235 buses • Purchased 38 C Gas Plus-powered 40’, low-floor buses in 2002 • 100% natural gas fleet by 2005 “The C Gas Plus is head-and-shoulders above the other natural gas engines in our fleet.” “Reliability of the natural gas vehicles is very much comparable, and in many cases, better than their diesel counterparts” Ron Shipley, Pierce Transit

  8. Miles Between Engine-Related Road Failures Data Sample: Pierce Transit

  9. Customer Profile: Washington Metropolitan Area Transit Authority • Transit agency for Washington, D.C. • Total fleet: 1,550 buses • Purchased 164 C Gas Plus-powered 40’, New Flyer buses in 2002 • And Another 150 in Orion Buses in 2005 "We are exceeding the clear air requirements with the CWI C Gas Plus without compromising reliability“ "From a reliability standpoint the CWI C Gas Plus engines far exceed our goals" Phillip Wallace, WMATA

  10. Data Sample:WMATA Mean Distance Between Failures Diesel Fleet: 1,416 Gas Fleet: 164 Miles

  11. NREL/WMATA Test-Miles Between Road Calls Road calls- (on-road failure of in service bus) are a direct indicator of reliability for transit buses Source: National Renewable Energy Laboratory- Washington Metropolitan Area Transit Authority: Compressed Natural Gas Transit Bus Evaluation. NREL/TP-540-37626 – Pages 26/27

  12. 2007 ISL G

  13. HD Emission Standards Continue to Evolve Urban Bus Phase-In Period

  14. Introducing Next Generation Natural Gas Engine technology • ISL G will meet 2010 emissions standards ahead of schedule • 85% lower NOx than C Gas Plus • 34% more torque at idle • Improved efficiency=improved fuel economy • Maintenance Free Exhaust System

  15. The Three Key Emission Technologies for 2007 Diesel Engines • Cooled Exhaust Gas Recirculation (CEGR) • Variable Geometry Turbocharger (VGT) • Diesel Particulate Filter (DPF) Cummins Cummins Turbo Technologies Cummins Emissions Solutions

  16. The Two Key Emission Technologies for 2007 ISL G Natural Gas Engines • Cooled Exhaust Gas Recirculation (CEGR) • Three Way Catalyst (TWC) Cummins Cummins Emissions Solutions

  17. Next Generation Natural Gas Technology Stoichiometric Featuring Cooled EGR • Lowest emissions with use of simple passive TWC • Higher efficiency with combustion enhancements • 8.9 litre stoichiometric EGR engine with ratings 250- 320 hp • Improved clutch engagement torque • Higher efficiency/improved fuel economy • Reliability/Durability • Cummins diesel parts 0.2 NOx in 2007 vs. 1.2 Phase in Provision

  18. What is a 3-Way Catalyst? • Simple passive device, like oxidation catalyst • Meets EPA Urban Bus useful life requirement • Maintenance Free

  19. 2007 ISL G - Specifications * Note: ISL G 260 and 250 will be available Jan 2008

  20. 2007 ISL G RatingsRating Matching Example Peak PowerPeak TorqueTransmission MatchApplication 320 @ 2000 1000 @ 1300 Allison B500 Urban Bus Allison 4500RDS Truck 300 @ 2100 860 @ 1300 Allison 3500 RDS Truck 280 @ 2000 900 @ 1300 Allison B400 Urban Bus School Bus 260 @ 2200 660 @ 1300Allison 3500 RDSSweeper Yard Spotter 250 @ 2200 730 @ 1300Allison B300 Shuttle Bus School Bus Note: ISL G 260/250 will be available Jan 2008 ISL G rated speed is the same as ISL diesel, eliminating the need to review and adjust final drive ratios

  21. No Compromise in Performance Preliminary Data ISL G clutch engagement torque is 34% higher than CWI’s current products Significantly higher low speed torque will improve vehicle acceleration

  22. Matched Ratings

  23. Stoichiometric EGR Uses high EGR rates in combustion process in place of excess air (Lean Burn). Oxygen free exhaust allows for the use of a three way catalyst Three Way Catalyst Exhaust Aftertreatment simple passive device, highly effective hydrocarbon, CO, and NOx control. Maintenance Free Improved torque throughout operating range New Electronic Control Module provides full monitoring and control of engine sensors, fuel system and ignition system Cummins Cooled EGR lowers in cylinder temperature and reduces oxygen concentration Low installed weight (1570 lb wet) Highest power to weight ratio in its class 2007 ISL G Features

  24. 2007 ISL G – Key Benefits • Shared block and components with 2007 ISL diesel • Over 80% parts commonality • 5% efficiency Improvement Target • Lean Burn vs. Stoich EGR combustion. • 34% more clutch engagement torque • Better performance • Transit 280 hp rating torque improved to 900 lb-ft (+6%) • Rated speed 2200 rpm • (same as diesel)

  25. OEM Availability • Working with all traditional OEM’s on the transition from C Plus and L Plus engines. • Transit and Refuse OEM’s have pre production engines for installation engineering • 280, 300, 320 ratings • Follows the engineering of the ISL diesel • Similar packaging and cooling requirements • 6 cylinder, cooled EGR, air to air aftercooling • Commercial availability – June 1, 2007

  26. ISL G Applications/OEMs REFUSE URBAN TRANSIT VOCATIONAL FUTURE

  27. More information? • For more information, contact your Cummins Westport regional sales manager, or local Cummins Distributor • Visit www.cumminswestport.com

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