1. Internal Combustion Engine

2. Warm UP
If we take an engine and advance the spark timing when will the spark occur? If we take an engine and retard the spark timing when will the spark occur? What is the optimal timing of an engine (before of after top dead center)?

3. Class Review of Last weeks Engine Introduction
What are the 4 strokes of an engine?
How does a 2 cycle differ from a 4 cycle?
Why are fossil fuels preferred to alternative fuels?
What are the components of the top end of an engine?

4. top half of the enternal combutstion engine (parts list, sketch these)
Head and valve train, looking up from cylinder

5. Valve train and Spark Plug
Push rods, rocker arms, valve cover, stem of the valves and valve springs assembly

6. Cylinder and Piston
3 rings on the piston and the importance of each

7. Mechanical Ignition
Fly wheel and Coil

8. Bottom Half of Engine Crank shaft, Cam, Lifters and timing gears
Most Important!!! Oil sump

9. What would happen if our engine didn’t have any gaskets?
Pair and Share…….
What would happen if our engine didn’t have any gaskets?
Gaskets

10. Intake and carburetor
Fuel Air Mix, Throttle control and Choke

11. Efi (Electronic fuel Injection)
Fuel is injected at high pressure just the intake valve
Computerized system regulates amount and timing of Fuel based on multiple sensors

12. GDI (Direct Injection System)

13. EFI or GDI
Time to vote……with discussion Which is the most efficient and Why?

14. Warm Up
What does a Gas engine have that a diesel engine not have

15. Cat 3408C

16. Diesel Engine Diesel is a heavier fuel than Gasoline
Has more pollutants than other fuels due to the nature of the fuel
Is much more efficient than other fuels
Complete burn is reason for the vaporized pollution
Diesel Engine

17. Weinkle Engine

18. Rotary Engine Also known as a weinkle engine
Used in Germany during WWII
Mazda tried it in the RX7 and RX8 sports car

19. Gas Turbine

20. Gas Turbine
Used in aircraft
Used as Jet/Helicopter engine