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State the difference between a single-acting cylinder and a double-acting cylinder in pneumatic control. - Leaving Cert Engineering - Question e - 2009
Question e
State the difference between a single-acting cylinder and a double-acting cylinder in pneumatic control.
Worked Solution & Example Answer:State the difference between a single-acting cylinder and a double-acting cylinder in pneumatic control. - Leaving Cert Engineering - Question e - 2009
Step 1
Single Acting Cylinder
Answer
A single acting cylinder is a type of pneumatic device that utilizes compressed air to move the piston in one direction only. The return movement of the piston is achieved through the use of a spring or gravity when the air supply is removed. This means that the cylinder requires constant air supply to perform work and will return to its original position once the air is cut off.
Step 2
Double Acting Cylinder
Answer
In contrast, a double acting cylinder uses compressed air to move the piston in both directions. It requires air input to extend and can maintain its position without air supply, as the design allows it to stay in place. To return the piston to its starting position, air must be supplied again. This setup allows for more versatile and continuous operations, making it suitable for more complex tasks.