Hydraulic system and engineering machine
A hydraulic system and hydraulic pump technology, applied in the hydraulic field, can solve the problems of difficult high-speed operation of the whole machine and good fretting performance
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[0042] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0043] An embodiment of the present invention provides a hydraulic system, including: a hydraulic pump, a main control valve, a differential pressure regulating valve, and a controller; wherein,
[0044] The pressure difference regulating valve is set between the oil discharge port of the hydraulic pump and the load feedback oil port of the main control valve, and is used to adjust the pressure difference between the above oil discharge port and the load feedback oil port; For receiving the throttle signal; the first output end is connected with the differential pressure regulating valve, and is used to control the differential pressure adjustment amount of the differential pressure regulating valve according to the throttle signal.
[0045] In the hydraulic system provided in this embodiment, the hydraulic ...
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