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2.  Internal Combustion Engines  External Combustion Engines  Electric Motors / Hybrids

3.  An internal combustion engine is an engine in which the combustion of a fuel (ie. Gasoline, Diesel, Propane, etc.) occurs with an oxidizer (air) in a combustion chamber. Cont.

4.  In this engine Chemical Energy is converted to Mechanical Energy by the force of the rapidly expanding gases pushing on the piston.

5.  4-Stroke Gas  4-Stroke Diesel  2-Stroke Gas  2-Stroke Diesel  Gas Turbine

6.  Nikolaus Otto invented it in 1867  Four Strokes are:  Intake  Compression  Power  Exhaust

12.  Pros  Easy to Refuel  Light Weight  Inexpensive  Cons  Only 30% Effcient

13.  Rudolf Diesel – 1892  Diesel Engines Use Compression Ignition

14.  Compression Ignition  Super heated gasses ignite fuel  No Spark Plugs  Super High Compression Ratio Comp. Ratio Cont.

15.  Compression Ratio – V @ BDC : V @ TDC

16.  Diesel in action Diesel in action  More Action More Action

17.  Small, light weight, simple engine  Used in:  Dirt Bikes, Lawn Mowers, Snowmobiles, Jet Skis, chainsaws, Etc.  Picture Picture

19. ADVANTAGES:DISADVANTAGES  Less Moving Parts  Light Weight  Twice as Powerful  Operating Position  Frequent Rebuilds  Pollution  Burns Oil

20.  These engines were introduced in the 1930s and power a large number of the diesel locomotives found in the United States.  Currently, 2-stroke Diesels power “super” cargo ships

21.  Typical engines have 6 to 14 cylinders (for a total displacement on the order of 1,556,002 cubic inches!).  A typical horsepower rating for one of these engines is 43,000 to 109,000HP!

22.  2-Stroke Diesel Engine 2-Stroke Diesel Engine  Most powerful engine in the world Most powerful engine in the world

23.  Dr. Felix Wankel  AKA, the Wankel or Wankel Rotory  Rotary in motion Rotary in motion