Hydraulic Systems Calculations Approach

Question 1

For Pressure Control Valves, how is the minimum area approximated in Q = CdAo*SQRT(2delP/rho)?

Answer 1

Approximate the area as a strip, with the length of the circumference and the width of the opening (may need to be calculated from trigonometry)

Question 2

For Regenerative Circuits, how are flow rates dealt with?

Answer 2

For the extending stroke, the flow rate into Port A = flow from pump + flow from Port B, and vice versa for the retracting stroke.

Question 3

For calculating Pump Displacement, when to use Pitch Circle Diameter?

Answer 3

Used in calculating the piston displacement using trigonometry.