【 Weak current College 】 shunt set flow valve related works---Power By 【 China power house network 】

Shunt Assembly flow valve is a shunt valve, collecting valve and flow set valve. Shunt valve is the hydraulic system consists of the same energy to two execution components supply the same flow (same amount shunt) to implement two actuators speed synchronized or definite relationship. Set flow valve, you from the two implementation component collection, traffic or the amount of oil in order to achieve this speed synchronization or definite relationship. Shunt Assembly flow valve is also a flow divider and collecting valve function. Equal flow divider principle of structure. Set for imported oil pressure, flow rate q0-p0, the valve after two road through two area equivalent fixed orifice 1, 2, respectively, oil, a b, and then from the variable throttle mouth 3-, 4-outlet through out I and II to two actuators. If the implementation component of the load are equal, the shunt mouth outlet pressure p4, p3 = because valve two tributaries road size completely symmetrical, so the output flow are symmetric, q1 = q1 = q0/2, and p1 = p2. When due to load the asymmetric ¡ù p4, p3 and p4 p3 > set, valve core is in the middle movement too late, because two tributaries of the same total resistance, will certainly make q1p2. At this point the valve in asymmetric hydraulic pressure to the left so that the variable throttle mouth, 3 4 decrease the throttle mouth, thereby reducing the q1, q2, until q1 ≈ q2, p2, p1 ≈ cartridge is a new equilibrium position stabilized. That is, exports to the two implementation components of the flow are equal, when the two element dimensions are identical, the velocity is synchronizes. Split-cycle, p0 is greater than P1 and P2, and so the valve is in phase 5 and 6 from the State, each hook. If load pressure p4 p3 >, if the valve remained in the Middle, will result in p1 p2 >. This is the integrated cartridge will move left, variable throttle mouth 3 reduce the rise in the p1, p2, p1 ≈ spool stopping movement. Because both fixed orificearea 1 and 2 are equal, so the two fixed orifice flow q2 q1 ≈, not subject to the export pressure p3 and p4 change. Set flow condition, p0 is less than P1 and P2, and so the two spool is mutual pressed state. Set load pressure p4 > p3, if the valve remained in the Middle, will result in p1 p2 >. When pressed into one of the spool to the left to decrease the throttle mouth, p2, p1, p2 until ≈ stop valve. The q2 q1 ≈ without inlet pressure p3 and p4 change.