Fuel Systems

1. Fuel Systems

2. Fuel Systems • Purpose of the fuel system • Store fuel • Deliver fuel • Pump fuel • Filter fuel • Mix air and fuel • Meter air and fuel

3. Fuel Systems • Parts of the fuel system: • Tank cap • Tank • Lines • Filter • Pump • Carburetor

4. Fuel Systems • Types of fuel • Gasoline • Kerosene • Diesel • LP- Liquefied Petroleum-Propane • Natural Gas • Alcohol • Gasoline • Hydrocarbon compounds • Hydrogen and carbon molecules C8H15

5. Fuel Systems • Gasoline additives • Anti-icing or Deicer • Metal deactivators and Rust inhibitors • Detergents • Ethanol 10% max.(grain) • Methonal 5% max.(wood) • MTBE (methyl tertiary butyl ether) 11% max. • Reformulated or oxygenated gas

6. Fuel Systems • Volatility • The ease at which a liquid can vaporize • Volatility changes • High volatility for cold temperature • Low volatility for hot temperatures

7. Fuel Systems Combustion • The burning of air and fuel

8. Fuel Systems • Detonation • A second burning of the fuel after the spark occurs which causes the engine to knock

9. Fuel Systems • Preignition • Ignition of the air-fuel mix before the spark

10. Fuel Systems • Knock, a noise caused by preignition or detonation • Octane • The ability of a fuel to resist knocking • Isooctane and heptane as base line • RON + MON / 2

11. Fuel Systems • Stoichiometric • Chemically correct air fuel mixture • 14.7 parts of air to 1 part of fuel • Rich mixture • Air-fuel mix with more fuel than required • Lean mixture • Air-fuel mixture with less fuel than required

12. Fuel Systems • Byproduct of combustion • O2 oxygen • H2O water • CO2 carbon dioxide • C8H15 hydrocarbons • CO carbon monoxide • Nox oxides of nitrogen

13. Have a nice day!