Load sensitive pressure compensation multiway valve for excavator
A pressure-compensated, load-sensitive technology, applied in the field of hydraulic control valves, which can solve the problems of no flow control, high manufacturing cost, and large volume.
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[0030] The best embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0031] Such as figure 1 and 2 As shown, the excavator load-sensitive pressure compensation multi-way valve described in the embodiment of the present invention includes a valve body 21, an oil inlet valve 1, a rotary valve 2, a left travel valve 3, and a right travel valve arranged on the valve body 21 in sequence. 4. Arm valve 5, boom valve 6, backup valve 7, bucket valve 8, oil return valve 9, and the oil inlet 10 and oil return 11 arranged at the left end of the valve body 21, the oil inlet valve 1 , rotary valve 2, left travel valve 3, right travel valve 4, stick valve 5, boom valve 6, backup valve 7, bucket valve 8, and oil return valve 9 are respectively provided with oil inlet 10; the valve The body 21 is an integral structure formed by integral casting. The valve body 21 is provided with an oil inlet channel 23 communicating w...
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