The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2023
Filed:
Sep. 30, 2022
Hangzhou City University, Hangzhou, CN;
Shanghai Marine Equipment Research Institution, Hangzhou, CN;
Qiang Zuo, Hangzhou, CN;
Xian Zhang, Shanghai, CN;
Yaolan Jin, Shanghai, CN;
Zhuhua Deng, Hangzhou, CN;
Wei Shao, Hangzhou, CN;
Pengfei Wang, Hangzhou, CN;
Jie Xiong, Hangzhou, CN;
Liying Lou, Hangzhou, CN;
Yanwei Zhao, Hangzhou, CN;
Longlong Leng, Hangzhou, CN;
HANGZHOU CITY UNIVERSITY, Hangzhou, CN;
SHANGHAI MARINE EQUIPMENT RESEARCH INSTITUTE, Shanghai, CN;
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.