公开(公告)号：US11988180B2

公开(公告)日：2024-05-21

申请号：US17958933

申请日：2022-10-03

Applicant: HARBIN ENGINEERING UNIVERSITY

Inventor： Jianhui Zhao ,  Xiangdong Lu ,  Heng Zhang ,  Yu Xu ,  Weilong Liu

IPC: H01F7/08 ,  F02M51/06 ,  H01F7/122 ,  H01F7/16

CPC classification number: F02M51/0621 ,  F02M51/0635 ,  H01F7/122 ,  H01F7/1615

Abstract: The present invention provides a permanent magnet-electromagnet synergistic coupling-based high-speed solenoid valve with a high dynamic response and a low rebound, including a shell and an iron core. The iron core is installed in the shell, an axial center through hole is formed in a middle of the iron core, a spring limiting sleeve is installed in the axial center through hole, an armature and a reset spring cavity are sequentially formed below the iron core, an upper portion of a valve rod is located in the spring limiting sleeve, an upper disc permanent magnet, a lower disc permanent magnet and a spring washer are arranged in the spring limiting sleeve, and a giant magnetostrictor is installed between the upper disc permanent magnet and the lower disc permanent magnet. By means of the present invention, electromagnetic force generated during pickup of the armature can be effectively improved.