How it works

How it works

A steam engine works by pressure! A fire heats water to make steam. The steam goes up and into a tube and down into a valve. The steam goes through the Valve and straight to the cylinder. The steam pushes the piston back and forth to make the wheels spin and the steam goes up into the air. And then it starts all over again!

Steam line and boiler

Thursday, March 14, 2013


This is a single-acting steam engine. That means that the steam only pushes the piston one way. The flywheel pushes it back again.
  1. The valve lets steam into the cylinder. 
  2. The piston moves in the cylinder and makes the flywheel spin.
  3. When the piston gets to the end the valve opens.
  4. The piston pushes the steam out through the open valve.
  5. When the piston gets to the other end the valve closes and the cycle starts all over again.

Click here to see it on YouTube

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