Durability Experience California Air Resources Board耐久性经验加利福尼亚空气资源局.pptVIP

Durability Experience with Electronic Controlled CNG and LPG Engines A. Lawson, R. Stothers, G. Salgado, G. Tilley Off-Road Mobile Source Technology Review Workshop February 2, 2000 GFI SYSTEM DURABILITY EXPERIENCE CNG Vehicles - 50,000 Miles Emissions Durability Heavy Duty CNG AND LPG Engines - Up To 2000 Hours Engine Emissions Durability Testing PROPANE SYSTEM MY 1999-2000 BI-FUEL GFI-FORD ALLIANCE PRODUCT PLANS  VEHICLE EMISSIONS DURABILITYCOMPARISON OF GFI AND OEM SYSTEMSLIGHT DUTY CNG TRUCKS ENGINE EMISSIONS DURABILITYHEAVY DUTY CNG ON HIGHWAY ENGINE EMISSIONS DURABILITYHEAVY DUTY LPG ON HIGHWAY ESTIMATED USEFUL LIFE EMISSIONS FROM CARB TEST ENGINES USING LPG PROJECTED 5000 HR DFs USEFUL LIFE EMISSIONS FROM A GFI INDUSTRIAL ENGINE CONCLUSIONS LPG and CNG Emissions DFs Have Been Generated Which Are Considered Representative, or Worst Case Values for Off-Highway Applications These DFs Appear To Be Much Higher Than What CARB Has Been Considering, Which May Be Based on Lower Mileage Automotive Experience Application of the Higher DFs to a Common Industrial LPG Engine Still Meets the 2004 Standards An Off-Road LPG and CNG Fuel Specification Will Be Required to Guarantee Useful Life Emissions Performance * LPG 5.4L GFP F-Series Trucks ULEV CNG 5.4L GFP F-Series Trucks ULEV LPG 5.4L GFP E-Series Vans LEV CNG 5.4L GFP E-Series Vans LEV CNG 2.0L GFP Contour Passenger Car TLEV LPG 6.8L V10 Chassis Cab Incomplete Vehicle ULEV