Internal Combustion Engine

This Demonstration shows a simplified version of how an internal combustion engine works. At the beginning, a vaporized gasoline and air mixture enters through the intake valve and is compressed by the piston. The piston continues to move upward until the spark plug fires. The resulting ignition and power expansion then pushes the piston back down, while the exhaust valve opens. Then the four-step cycle repeats.
  • Contributed by: Sarah Brown
  • After work by: My Schoolhouse Educational Designers


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