Calculate P ₁ , P ₂ , P ₃ , P _p , Q ₁ , Q ₂ , Power losses in the DCV, Power losses in the FCV, pump real flow rate

The speed of a hydraulic cylinder is controlled by means of a series pressure-compensated flow valves, as shown in the given circuit.

Given:

Relief valve:

Cracking pressure = 6 MPa

Override pressure = 0

Hydraulic cylinder:

f = 2000 Ns/m

v = 0.1 m/s

F = 9000 N

Piston diameter = 60 mm

Rod diameter = 25 mm

No inner leakage

Pump: V = 25 cm/rev n = 1000 rpm 1, = 0.95 11 = 0.93 n = 1 Directional control valve: Q=6x10-AP PQ XIIw P (M) Pp M P=0 PQ P=0 "