Hydraulic actuation power pack and hydraulic system

By integrating the motor, hydraulic pump, oil cylinder and solenoid valve into the housing to form a compact structure, and adopting a built-in channel and multi-stage oil circuit design, the problems of large size of hydraulic actuator power components, oil leakage and low driving accuracy are solved, and efficient and stable hydraulic system operation is achieved.

CN224496939UActive Publication Date: 2026-07-14CHANGSHU TONGRUN AUTO ACCESSORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHU TONGRUN AUTO ACCESSORY
Filing Date
2025-08-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing hydraulic actuators are bulky and require a lot of installation space due to their distributed layout. They also have many external pipelines that are prone to oil leakage, long power transmission paths that lead to decreased drive accuracy, high system complexity and failure rate, and cumbersome cylinder motion control logic with high energy consumption.

Method used

The integrated layout design integrates the motor, hydraulic pump, cylinder and solenoid valve into the base, forming a compact axial structure. It has built-in oil inlet and return channels, and the oil flow is controlled by the solenoid valve. Combined with multi-stage oil circuit design and pressure regulating valve, it realizes stable oil delivery and return.

Benefits of technology

It significantly improves the structural compactness and operational stability of the hydraulic actuator power unit, reduces installation space requirements, reduces the risk of oil leakage and failure rate, improves energy efficiency and drive precision, and ensures the smoothness of cylinder movement and the accuracy of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224496939U_ABST
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Abstract

The utility model relates to the technical field of jack manufacturing, especially a hydraulic execution power assembly and hydraulic system. The motor is in transmission connection with the hydraulic pump, the motor and the oil cylinder are fixed on opposite ends of the seat body respectively, and the hydraulic pump and the electromagnetic valve are integratedly installed in the seat body. The seat body is internally provided with independent oil inlet channels and oil return channels. When the oil cylinder works outward, the oil is sucked into the oil inlet channel through the hydraulic pump, is pumped into the oil cylinder after pressure boosting, when the oil cylinder reaches the preset position and needs to be pressure maintained, the motor stops driving the hydraulic pump, and the electromagnetic valve is in the closed state, when external force causes the oil cylinder to retract, the electromagnetic valve is conducted, the oil returns through the oil return channel and pressure relief is completed. In this way, the integrated layout improves the operation stability of the hydraulic system, the shortened transmission path reduces energy loss, the built-in oil circuit reduces oil leakage and fault occurrence, and the control of the electromagnetic valve guarantees the stability and accuracy of the oil cylinder action, so that it is suitable for various complex working conditions.
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