Patents by Inventor Jingfang WEI

Jingfang WEI 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).

  • Multi-redundancy electromechanical servo system for regulating liquid rocket engine and implementation method therefor
    Patent number: 11359579
    Abstract: A multi-redundancy electromechanical servo system for regulating a liquid rocket engine, comprising a triple-redundancy servo controller (1), a double-redundancy servo driver (2), double-winding electromechanical actuators (4, 5), a triple-redundancy position sensor (6), a thrust regulator (8) and a mixed ratio regulator (9). Engine thrust, a mixed ratio regulation instruction and a feedback signal of the triple-redundancy position sensor are inputted to the triple-redundancy servo controller, and the triple-redundancy servo controller outputs thrust and mixed ratio regulation PWM wave control signals to the double-redundancy servo driver. The double-redundancy servo driver outputs a three-phase variable-frequency variable-amplitude sine wave current to drive the double-winding electromechanical actuators to drive the thrust regulator and the mixed ratio regulator to move, thus achieving engine thrust and mixed ratio regulation.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: June 14, 2022
    Assignee: XI' AN AEROSPACE PROPULSION INSTITUTE
    Inventors: Bin Li, Hui Chen, Xiaoguang Zhang, Yalong Yang, Jingfang Wei, Yushan Gao, Guochuang Dong, Dongying Ma, Weiyu Chen, Xingxing Pu
  • MULTI-REDUNDANCY ELECTROMECHANICAL SERVO SYSTEM FOR REGULATING LIQUID ROCKET ENGINE AND IMPLEMENTATION METHOD THEREFOR
    Publication number: 20200362796
    Abstract: A multi-redundancy electromechanical servo system for regulating a liquid rocket engine, comprising a triple-redundancy servo controller (1), a double-redundancy servo driver (2), double-winding electromechanical actuators (4, 5), a triple-redundancy position sensor (6), a thrust regulator (8) and a mixed ratio regulator (9). Engine thrust, a mixed ratio regulation instruction and a feedback signal of the triple-redundancy position sensor are inputted to the triple-redundancy servo controller, and the triple-redundancy servo controller outputs thrust and mixed ratio regulation PWM wave control signals to the double-redundancy servo driver. The double-redundancy servo driver outputs a three-phase variable-frequency variable-amplitude sine wave current to drive the double-winding electromechanical actuators to drive the thrust regulator and the mixed ratio regulator to move, thus achieving engine thrust and mixed ratio regulation.
    Type: Application
    Filed: February 21, 2019
    Publication date: November 19, 2020
    Inventors: Bin LI, Hui CHEN, Xiaoguang ZHANG, Yalong YANG, Jingfang WEI, Yushan GAO, Guochuang DONG, Dongying MA, Weiyu CHEN, Xingxing PU
  • Hat
    Patent number: D948172
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: April 12, 2022
    Assignee: SHENZHEN ECODI TECHNOLOGY CO., LTD
    Inventor: Jingfang Wei