2002 Ford F150 Bi-fuel Supplement 1st Printing - Page 11

Introduction Compressed natural gas (CNG) • Typical compressed natural gas (CNG) fuel system shown. 1. Fuel tank -CNG fuel cylinder. Depending upon application, more than one fuel tank may be used. 2. Solenoid tank valve -One electronically-actuated (normally closed) solenoid valve that will automatically stop the flow of CNG from the fuel tank(s) when the engine is turned off. 3. CNG fueling point -Allows refueling of the CNG fuel tank(s) using standard automotive natural gas dispensing equipment. 4. Coalescent fuel filter -Removes impurities from the natural gas before it enters the high pressure fuel regulator. 5. High pressure fuel regulator -Reduces fuel pressure from the fuel tank(s) to 690 kPa (100 psi). 6. Computer and metering valve assembly (Compuvalve) -Controls the quantity of natural gas being delivered to the engine as vehicle speed and load requirements demand. 7. Fuse and relay module -Contains the necessary electrical fuses and relays required to operate your Gaseous Fuel Injection System. 8. Fuel selector switch -Allows you to select the fuel you want to use (CNG or unleaded gasoline). 11