公开(公告)号：US12031637B1

公开(公告)日：2024-07-09

申请号：US18540768

申请日：2023-12-14

Applicant: HANGZHOU CITY UNIVERSITY ,  ZHEJIANG UNIVERSITY

Inventor： Qilin Jin ,  Qiang Zuo ,  Qianqian Lu ,  Yu Huang ,  Longlong Leng ,  Jiaqi Hu ,  Yongzhuang Liu ,  Binbin Chen

IPC: F16K31/04 ,  F15B13/04 ,  F15B13/044 ,  F16K11/078 ,  F16K31/40

CPC classification number: F16K31/043 ,  F15B13/0402 ,  F15B13/0406 ,  F15B13/0444 ,  F16K11/078 ,  F16K31/047 ,  F16K31/40

Abstract: A two-dimensional electro-hydraulic servo valve based on a dual-redundancy transmission mechanism, including a valve body, a valve spool inside the valve body, and a valve sleeve on an outside of the valve spool. A low-pressure chamber is disposed between the valve spool and the valve sleeve; the valve body is connected to a servomotor through a transmission mechanism; the transmission mechanism includes a spool fork and a motor toggle, and each end of the motor toggle is connected to a spherical connector; the spherical connector is rotatable with a centerline of a connection end of the motor toggle as an axis; each end of the spool fork is slidably connected to a corresponding spherical connector; a middle part of the spool fork is connected to the valve spool, and a middle part of the motor toggle is connected to a rotor of the servomotor.