Feature Post

Monday, October 24, 2011

The Operation Of The Steam Engine

The following diagram shows the main components of a steam engine piston. This type of engine would be typical of a steam locomotive.

The engine shown is a steam double effect, since the valve allows high pressure steam to act alternately on both sides of the piston. The following animation shows the engine of action.

You can see that the slide valve is responsible for letting the steam at high pressure on both sides of the cylinder. Control valve bar is usually attached to your head, cross connected with the activity of the cross slide valve as well. (There is a steam locomotive, this linkage also allows the engineer put the train in reverse.)

You can see in this picture that the exhaust steam simply vents into the air. This explains two things steam locomotives:
  • It explains why the station should take water - the water is steadily lost steam pipe.
  • It explains that the "Choo-Choo" sound comes from. When you open the cylinder valve to release the steam escape, the escaping steam under great pressure and makes a "choo!" sounds in their output. When the train is the first start, the piston moves slowly, but as the train starts rolling the piston gains speed. The effect of this is the "Choo Choo Choo Choo ...- ..... .... chu-chu" means when you start to move.

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