Electrically driven multilateral overflow pulse attenuation control system and multilateral overflow system

Abstract

The application relates to an electrically driven multilateral overflow pulse attenuation control system and a multilateral overflow system. The control system comprises a pressure sensor, a controller, an executing mechanism and a multilateral overflow valve; the controller is used for generating a control command controlling the executing mechanism based on a fluid pressure signal collected by the pressure sensor; the multilateral overflow valve comprises a valve core and a valve core sleeve; the valve core is provided with m through holes to form bypass overflow inlets; the valve core sleeve is provided with n through holes to form bypass overflow outlets; the valve core and the valve core sleeve are coaxially arranged; the valve core rotates around a rotary shaft to conduct at least one bypass overflow inlet with at least one bypass overflow outlet to form an overflow passage; the executing mechanism is used for driving the valve core to rotate around the rotary shaft and / or reciprocate along a direction of the rotary shaft. According to a solution of the present application, the valve core is controlled to move to enable the overflow inlet and the overflow outlet to be matched to form the overflow passage, and flow pulse generated in a main pipeline can be at least partially offset.

Description

technical field [0001] The application relates to the field of hydraulic systems, in particular to an electric-driven multilateral overflow pulsation attenuation control system and a multilateral overflow system. Background technique [0002] The hydraulic system has been widely used in many important industrial sectors such as aviation, spaceflight, and shipbuilding due to its advantages of high power density and high rigidity against load. With the development of hydraulic systems in the direction of high speed, high pressure, and high power, the vibration and noise problems of hydraulic energy pipeline systems are becoming more and more serious, which has become a bottleneck restricting the development of hydraulic systems in the direction of high pressure and low noise. [0003] At present, most hydraulic systems use axial piston pumps to provide hydraulic energy, because axial piston pumps have the advantages of high output pressure, high work efficiency and high reliab...

AI Technical Summary

Problems solved by technology

Therefore, the bandwidth of the shock absorber cannot meet the increasing frequency requirements of fluid pulsation in hydraulic systems, which has become a bottleneck in the application of traditional fluid pulsation active control methods based on the principle of bypass overflow in high-speed hydraulic systems.

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