(Solved): Cylinder is double acting.  The diameter is 2-in.  The rod diameter is inch. Speed of ...

Cylinder is double acting.  The diameter is 2-in.  The rod diameter is ½ inch.

Speed of cylinder piston (in/minute) depends on:

• rate of oil flow (in³/minute)
• cylinder CSA (in²)

Important: Watch for units.  1-gallon = 231 in³

Formula 1-6

flow rate = speed of cylinder X Area of cylinder bore (Q = vA)

units for flow are  in3min      units for speed of cylinder are  inmin       units for area are in²

Given: The pump flows oil at 6 GPM.  The cylinder has a diameter of 2-in.

Important: Show your step-by-step calculations below, complete with units.

1. How fast is the extension stroke speed? (ANS:7.3insec ).
2. How fast is the retraction stroke speed? (ANS:7.8insec ).