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how does a rod in tube work?

I know I know, heat pushes the rod out, but how? what actual mechanism drives the rod to move out, then back in?

1 Answer

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  • goober
    Lv 7
    1 decade ago
    Favorite Answer

    I think you mean a piston in a cylinder as in a steam locomotive.

    The piston is double acting. Steam enters the cylinder behind the piston to push its rod out. When it reaches the limit of travel, the steam there is vented and then steam enters the cylinder in front of the piston to drive it back.

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