Hangzhou City University

Shanghai Marine Equipment Research Institute

Yaolan Jin

Xian Zhang

Pengfei Wang

Qiang Zuo

Zhuhua Deng

Wei Shao

Longlong Leng

Yanwei Zhao

Liying Lou

Jie Xiong

An electro-hydraulic servo valve, which has an adjustable null position and can be directly driven by the motor, is provided and includes four parts: a slide valve assembly, a two-dimensional motor, a magnet resetting-to-null mechanism, and a displacement sensor, and the four parts are set coaxially arranged. The slide valve assembly is a conventional two-dimensional servo valve structure. The two-dimensional motor may directly drive the valve core to rotate to further control a size of an opening opened by a valve. The magnet resetting-to-null mechanism is configured to reset the valve to the null position. The displacement sensor may monitor a position of the valve core in real-time and feedback signals to achieve closed-loop controlling.

Two-dimensional motor-direct-driving electro-hydraulic servo valve with adjustable null position

Growing community of inventors

Shanghai, China

Yaolan Jin