1. IBEX 2007 Session 310 The Evolution of Automotive Fuel Tanks Presented by: Roy Giacomazzi Senior Development Engineer

2. Automotive Fuel Tank (1955 Chevy)

3. Automotive Fill Pipe (1955 Chevy)

4. Automotive fuel tank evolution has been driven by: Customer Satisfaction Safety Federal and CARB regulations

5. Customer Satisfaction Issues Automatic Nozzle Shutoff Premature Shutoff Spitback Failed Nozzles Vapor Space Tank Filling on Slopes Tank Capacity Range of Fill Rates

6. Fill Pocket Design Simple physics prevents fuel from spitting back during refueling event.

7. Automatic Shutoff Nozzle Sensor Port

8. Fuel Tank Fill System

9. Changes Driven by Evap Emission Regulations Carbon Canister with Engine Purge Pressure/Vacuum Cap Low Permeation Components

10. Fuel System with Evap Canister Carbon Canister

12. Fuel Cap with Pressure/Vacuum Relief

13. Fuel System Validation Fuel Volatility Fuel Tank, Dispensed Fuel and Ambient Temperatures Fuel Level Tank Angle or Slope Tank Configuration Others

14. Industry Collaboration Vehicle Fuel System Designers Fuel Component Suppliers Oil Industry Gasoline Retailers

15. Summary Automotive fuel systems have evolved to address customer satisfaction issues and various emission and safety regulations. Extensive validation of any new fuel system configuration is required.