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Motor size vs. flow rate, shaft torque, shaft power and hydraulic power.
Equations for hydraulic pumps:
Q = D n / 1000 (1)
Q = flow rate (l/min)
D = displacement of piston (cm3/rev)
n = revolutions (rpm)
- rev = revolution
- rpm = revolution per minute
T = D p / 20 π (2)
T = torque (Nm)
p = pressure (bar)
Ps = T n / 9554 (3)
Ps = shaft power (kW)
Ph = Q p / 600 (4)
Ph = hydraulic power (kW)
Hydraulic and pneumatic systems - fluids, forces, pumps and pistons.
Comparing different types of hydraulic pumps and their maximum pressures and flow.
Typical hydraulic cylinders and acting area vs. cylinder diameter.
The volumetric displacement of hydraulic cylinders.
Calculate hydraulic cylinder force.
The power required for hydraulic pumping.
Calculate hydraulic pump volume capacity.
Introduction tutorial to positive displacement pumps basic operating principles.
Calculate pumps hydraulic and shaft power.
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