Turning gradient control valve
A technology of priority valve and one-way valve, applied in the direction of fluid pressure actuation device, servo motor assembly, mechanical equipment, etc., can solve the problems of system vibration, steering hydraulic shock, sudden change of flow, etc., to reduce cavitation noise and flow noise , The oil flow switching is stable, and the effect of ensuring the stability
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[0009] Such as Figure 1 ~ Figure 2 As shown, the hydraulic steering priority valve is composed of 1. a plug, 2. a sealing ring, 3. a damper, 4. a spool, 5. a valve body, 6. a first orifice, and a spring. Three main undercut grooves are processed on the valve body 5 to communicate with the three main oil through holes, namely the first hole P, the second hole CF, and the third hole EF. The first hole P communicates with the pump oil, and the second Hole CF leads to the steering circuit, and the third hole EF leads to other working circuits. The left end of the valve body 5 is equipped with a plug 1, and the right end is equipped with a spring 7 and a pipe joint 10 with a detachable second orifice 8. The pipe joint 10 and The steering load sensing port LS is connected, and the valve core 4 is installed in the valve body 5. Its initial position is at the leftmost position under the limit of the spring 7 and the plug 1. At this time, the valve port of the first hole P to the secon...
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