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Distinguish between a single-acting cylinder and a double-acting cylinder in pneumatic control. - Leaving Cert Engineering - Question i - 2012
Question i
Distinguish between a single-acting cylinder and a double-acting cylinder in pneumatic control.
Worked Solution & Example Answer:Distinguish between a single-acting cylinder and a double-acting cylinder in pneumatic control. - Leaving Cert Engineering - Question i - 2012
Step 1
Single-acting Cylinder
Answer
A single-acting cylinder is a pneumatic output device that operates using compressed air to move the piston in one direction. When the compressed air is no longer applied, a spring or the weight of the load typically returns the piston to its original position. This makes it efficient for applications that require linear motion in one direction only.
Step 2
Double-acting Cylinder
Answer
A double-acting cylinder, on the other hand, utilizes compressed air to move the piston in both directions. It requires air input for both extending and retracting the piston. Once the air supply is switched off, the piston remains in place, thanks to the internal design of the cylinder. This allows for more control and versatility in applications requiring movement in both directions.