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2 Stroke Engines<br />Jesse Sopko<br />TED 346<br />Dr. Kallis<br />
Facts<br />2 Strokes per cycle of the engine<br />Intake and exhaust are performed simultaneously<br />Intake occurs at th...
Positives and Negatives<br />Positive<br />Negative<br />Light Weight<br />Simple<br />More powerful than four stroke engi...
How it works<br />Intake: Fuel and air mix is drawn into the crank case by vacuum and then into the cylinder. <br />Compre...
Examples<br />Dirt Bike <br />Lawn mowers<br />Outboard engines<br />Chain saws<br />Line Trimmers<br />Jet Skis<br />Snow...
Question<br />Where have you used a two stroke engine before?<br />
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2 Stroke Engines

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2 Stroke Engines

  1. 1. 2 Stroke Engines<br />Jesse Sopko<br />TED 346<br />Dr. Kallis<br />
  2. 2. Facts<br />2 Strokes per cycle of the engine<br />Intake and exhaust are performed simultaneously<br />Intake occurs at the end of the power stroke <br />Invented by Dugald Clerk in 1881<br />Fires on every revolution of the crank shaft<br />Light weight and simple<br />
  3. 3. Positives and Negatives<br />Positive<br />Negative<br />Light Weight<br />Simple<br />More powerful than four stroke engines of equivalent size<br />High power to weight ratio<br />Inefficient<br />Terrible polluter<br />Large amount of unused fuel is expelled <br />
  4. 4. How it works<br />Intake: Fuel and air mix is drawn into the crank case by vacuum and then into the cylinder. <br />Compression: Fuel air mix is then compresses inside the cylinder.<br />Power: Fuel air mix is ignited forcing the piston down exposing the exhaust port.<br />Exhaust: The exhaust gases are forced out by the incoming fuel air mix.<br />
  5. 5. Examples<br />Dirt Bike <br />Lawn mowers<br />Outboard engines<br />Chain saws<br />Line Trimmers<br />Jet Skis<br />Snowmobiles<br />Model Air Planes<br />Light Motorcycles<br />Go carts<br />Ultra lights<br />Scooters<br />
  6. 6. Question<br />Where have you used a two stroke engine before?<br />

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