Beihang University

Beijing Aerospace Propulsion Institute

Beijing Aerospace Petrochemical Technology & Equipment Engineering Corporation Limited

Shuai Wu

Lei Liu

Yang Gao

Shuai Li

Xuebin Wang

Zongxia Jiao

Yaoxing Shang

Zengning Song

Limin Dai

Xiangyu Chen

Weiyi Hao

A fast blind plate switching device, comprising a sealing structure, a clamping structure, a support structure and an execution mechanism. The blind plate has an open-state structure and a blind-state structure. The support structure is used for connecting pipelines at two sides and providing support for the whole device. The clamping structure and the sealing structure are located inside the support structure. The clamping structure is driven by the execution mechanism, and under the drive of the execution mechanism, the clamping structure presses on the blind plate () to eliminate a gap between two sides of the blind plate, so that a seal is formed by means of the sealing structure. When a gap is formed away from the blind plate (), the open/blind state of the blind plate () is switched.

Fast blind plate switching device

A smart load-sensing EHA, comprising a variable displacement hydraulic pump, a symmetrical hydraulic cylinder, a feedback module, a pressure-following valve and an execution mechanism. The symmetrical hydraulic cylinder includes a symmetrical plunger, a first cylinder and a second cylinder separated by the plunger. The variable displacement hydraulic pump includes an oil inlet and an oil outlet. An output of the feedback module is to output a greater one of pressures at the first input and the second input to the execution mechanism. The pressure-following valve is connected between the output of the feedback module and an input end of the execution mechanism to reduce an instantaneous flow input to the input end of the execution mechanism and adjust pressure at the input end thereof. The execution mechanism is to receive an output of the feedback module and generate signal for changing displacement of the variable displacement hydraulic pump.

Intelligent load-sensing electro-hydrostatic actuator

Growing community of inventors

Beijing, China

Shuai Wu