Water hydraulic fluid switching transmission (FST) has lower environmental load and lower energy loss in valves for using only ON/OFF valves. In addition, improvement of transmission efficiency can be expected by using accumulator as the second driving source and making use of waste energy by energy recovering action. This paper concerned with experimental results and a design of simulator of t...

Abstract The hydraulic scissor lift is a widely used special lifting equipment. In its repeated ascent and descent, the gravitational potential energy of platform wasted. To address this problem, new energy-saving system based on accumulator proposed in paper. A simulation model established. shows that can recover up to 73% while reducing installed power electric motor by 60%, specifically from...

In order to address the problems of low energy storage capacity and short battery life in electric vehicles, this paper, a new electromechanical-hydraulic power coupling drive system is proposed, an vehicle proposed based on system. The realizes mutual conversion between mechanical energy, hydraulic through electromechanical–hydraulic coupler. This paper describes structural characteristics wor...

In this paper one presents an electro-hydrostatic servo-actuator (EHA) driven by a brushless d.c. motor. The constructive solution studied here was chosen due to the current trends in making All-Electric Aircraft (AEA). EHA contains two subsystems: the electrical subsystem and the hydraulic subsystem. The hydraulic subsystem is composed by a local gear pump, a hydraulic cylinder with bilateral ...