Engine Presentation

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  • Also mention: Push rod DOHC SOHC Maybe 2 stroke not needing them
  • Interferance + non-interferance engines

Transcript

  • 1. I'm going to tell you about engines (that's an engine) @zeenoside facebook.com/zeenoside [email_address]
  • 2. Types of engine
    • 4 Stroke
    • 2 Stroke
      • Normally Single Cylinder
    • Rotary
    • 6. Deltic
  • 7. What does an engine need?
    • Fuel (Diesel, Petrol, LPG, etc)
    • 8. Air
    • 9. Spark (Catalyst)
    • 10. Compression
  • 11. Engine Basics – Cylinders + Pistons
    • Piston goes up and down inside cylinder
    • 12. Piston is attached to crankshaft
    Piston Crown Gudgeon Pin Connecting Rod (con rod) Bearings (and con rod cap)
  • 13. Engine Basics - Crankshaft
    • Pistons attach to the crankshaft which is presented to the outside of the engine allowing the power to be used.
  • 14. Engine Basics – Valves + Camshafts
    • Allows fuel + air to go inside the cylinder at the right time.
    • 15. Allows exhaust gas to escape the cylinder at the right time
    • 16. Camshaft presses on the top of the valves in order to open and close them
  • 17. Why ”4 Stoke”?
  • 21. Timing – what's it do?
    • Allows the valves to open at the right time for the piston
    • 22. Methods:
      • Timing Belt (cam belt)
      • 23. Timing chain
  • 24. Fuelling
    • EFI (Fuel injection)
      • Injects fuel into intake valve based on crank position
      • 25. Very tunable
      • 26. Lots of sensors
    • Carburetors (magic)
      • Injects fuel based on amount of air being sucked in + magic
      • 27. Uses phrases like ”diaphrams”, ”floats”, ”jets”, ”needles”
      • 28. Very delicate
  • 29. Spark generation
  • 30. The computer side of things
    • The computer (ECU) needs to manage:
      • Camshaft advance/retard (lol!!)
      • 31. Fuelling
        • Via MAP/MAF sensors
        • 32. Crank Position sensor (CPS)
      • Temperature (fan control)
      • 33. Boost (if fitted with turbo charger or super charger)
      • 34. ”Choke”/Cold start
      • 35. Idle speed
  • 36. Other systems to consider
    • Lubrication system
    • 37. Cooling system
    • 38. Charging system
    • 39. Turbo/Super charging (forced induction)
  • 40. Interested in learning more?