Patents by Inventor Sihao Fu

Sihao Fu 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).

  • Pneumatic proportional valve with high frequency response and low power consumption
    Patent number: 12203554
    Abstract: A pneumatic proportional valve includes a torque motor and a pneumatic rotary valve. The torque motor includes permanent magnets, magnetically permeable yokes, an upper armature, a lower armature, an upper skeleton, a skeleton column, a lower skeleton, an exciting coil, a coil skeleton, a spring support, a spring plate and load springs. The torque motor has a single coil structure with an axis of the exciting coil coinciding with a rotation axis of the armatures, and the coil is arranged between the upper armature and the lower armature. The torque motor has the upper armature and the lower armature, and the upper armature and the lower armature have a total of four armature arms, which can form eight air gaps with an upper one and a lower one working in pair, form four pairs of magnetic circuits in parallel with each other under the excitation of a control coil.
    Type: Grant
    Filed: August 16, 2023
    Date of Patent: January 21, 2025
    Assignee: Zhejiang University
    Inventors: Shuo Liu, Sihao Fu, Jiajie Ma, Yong Cai, Yu Chen, Zhiyong Sun, Wanglin Lin
  • PNEUMATIC PROPORTIONAL VALVE WITH HIGH FREQUENCY RESPONSE AND LOW POWER CONSUMPTION
    Publication number: 20240401707
    Abstract: A pneumatic proportional valve includes a torque motor and a pneumatic rotary valve. The torque motor includes permanent magnets, magnetically permeable yokes, an upper armature, a lower armature, an upper skeleton, a skeleton column, a lower skeleton, an exciting coil, a coil skeleton, a spring support, a spring plate and load springs. The torque motor has a single coil structure with an axis of the exciting coil coinciding with a rotation axis of the armatures, and the coil is arranged between the upper armature and the lower armature. The torque motor has the upper armature and the lower armature, and the upper armature and the lower armature have a total of four armature arms, which can form eight air gaps with an upper one and a lower one working in pair, form four pairs of magnetic circuits in parallel with each other under the excitation of a control coil.
    Type: Application
    Filed: August 16, 2023
    Publication date: December 5, 2024
    Inventors: Shuo Liu, Sihao Fu, Jiajie Ma, Yong Cai, Yu Chen, Zhiyong Sun, Wanglin Lin