What device converts compressed air energy into linear motion?

What device converts compressed air energy into linear motion?

• A. Pneumatic cylinder (actuator)
• B. Hydraulic pump
• C. Electric motor
• D. Rotary vane

Answer: (A)

Converting compressed air energy into linear motion is done by a pneumatic cylinder, also known as an actuator. Inside, compressed air pushes a piston, and that push moves the piston rod in a straight line, producing linear motion. This is a direct energy-to-motion conversion in one direction (or both, in double-acting cylinders, with air driving movement in both directions). Hydraulic pumps power hydraulic systems by pressurizing fluid, not air, so they don’t convert compressed air into linear motion. Electric motors convert electrical energy into rotational motion rather than linear motion directly. Rotary vane devices are rotary machines that operate around a rotating axis, not to produce straight-line movement from compressed air energy.

Converting compressed air energy into linear motion is done by a pneumatic cylinder, also known as an actuator. Inside, compressed air pushes a piston, and that push moves the piston rod in a straight line, producing linear motion. This is a direct energy-to-motion conversion in one direction (or both, in double-acting cylinders, with air driving movement in both directions).

Hydraulic pumps power hydraulic systems by pressurizing fluid, not air, so they don’t convert compressed air into linear motion. Electric motors convert electrical energy into rotational motion rather than linear motion directly. Rotary vane devices are rotary machines that operate around a rotating axis, not to produce straight-line movement from compressed air energy.