Taiyuan University of Technology

Guangdong Global Egrow (zhaoqing) Cross-border E-commerce Co., Ltd.

Jing Yang

Long Quan

Lei Ge

Yunxiao Hao

Huimin Hao

Jiahai Huang

He Liu

Bin Zhao

Youshan Gao

Disclosed is a flow control system for digital and mechanical redundant pressure compensation. On the basis of an original pressure compensation valve, two-position three-way electromagnetic valves are added to control the opening and closing of pressure compensation valves. Furthermore, pressure sensors and a controller are added, so that the system has a digital pressure compensation function. When the pressure sensor breaks down, the flow control system is switched to a mechanical compensation mode to achieve mechanical pressure compensation, the problem that system flow cannot be controlled when the sensor breaks down is solved, and the purpose of redundancy control is achieved. Moreover, the pressure compensation valve in the loop where the highest load is located can be controlled to be completely opened through the two-position three-way electromagnetic valve to reduce pressure loss of the valve port, and the pressure is not affected by load fluctuation.

Flow control system for digital and mechanical redundant pressure compensation

Container for cleaning a cosmetic brush

A double-loop control system with a single hydraulic motor relates to a technical field of hydraulic transmission control, including a hydraulic motor (), a positive control loop (), a negative control loop (), a hydraulic pump (), an accumulator (), and an oil tank, wherein the hydraulic motor () adopts a unique thrust structure with four inlet/outlet ports; the positive control loop () and the negative control loop () independently control the hydraulic motor (), wherein the positive control loop () and the negative control loop () drive together or only one drives; or braking kinetic energy and potential energy of loads are stored in the accumulator () for energy recovery. The present invention uses only one hydraulic motor for satisfying different work conditions and different load driving requirements with advantages such as simple structure, high system reliability and high energy efficiency.

Double-loop control system with single hydraulic motor

Growing community of inventors

Shanxi, China

Jing Yang