Patents by Inventor Yaolan Jin

Yaolan Jin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Two-dimensional motor-direct-driving electro-hydraulic servo valve with adjustable null position
    Patent number: 11703067
    Abstract: 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.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: July 18, 2023
    Assignees: HANGZHOU CITY UNIVERSITY, SHANGHAI MARINE EQUIPMENT RESEARCH INSTITUTE
    Inventors: Qiang Zuo, Xian Zhang, Yaolan Jin, Zhuhua Deng, Wei Shao, Pengfei Wang, Jie Xiong, Liying Lou, Yanwei Zhao, Longlong Leng