Patents by Inventor Heju JI

Heju JI 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).

  • Patent number: 11047818
    Abstract: The present invention discloses an integrated online measurement system for thermophysical property parameters of nanofluid cutting fluid, consisting of a gas path system, a fluid path system, a nanofluid thermal conductivity measurement device, a measurement device for a convective heat transfer coefficient and a nanofluid/workpiece heat partition ratio of the nanofluid cutting fluid, and a grinding force and grinding temperature measurement device or a milling force and milling temperature measurement device; the nanofluid thermal conductivity measurement device is located in the fluid path system; the gas path system provides pressure for the nanofluid in the fluid path system, two nozzles lead out from the fluid path system, and the nanofluid gas spray ejected by the nozzle I is sprayed onto the surface of a workpiece I to form the measurement device for the nanofluid convective heat transfer coefficient and the nanofluid/workpiece heat partition ratio; and the nanofluid gas spray ejected by the nozzle II
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: June 29, 2021
    Inventors: Changhe Li, Min Yang, Runze Li, Yanbin Zhang, Xianpeng Zhang, Heju Ji, Yali Hou, Naiqing Zhang, Qidong Wu
  • Patent number: 10969058
    Abstract: A continuous supply precision minimum quantity lubrication pump supporting different lubrication conditions, including a pump system, a gas source processor, a driving system, an oil cup, a water pump, a two-position three-way solenoid valve, a water tank and an emulsion storage tank, wherein the processor is connected with the pump system through a bidirectional joint, the oil cup is connected with the pump system through an oil cup joint, the water pump is installed in a driving box body of the driving system and is connected with the pump system through a hose, the water tank and the emulsion storage tank are connected with the two-position three-way solenoid valve, the two-position three-way solenoid valve is connected with the driving system, and the driving system and the water pump are respectively driven by a stepping motor I and a stepping motor II.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: April 6, 2021
    Assignee: QINGDAO UNIVERSITY OF TECHNOLOGY
    Inventors: Changhe Li, Yanbin Zhang, Dongzhou Jia, Min Yang, Naiqing Zhang, Heju Ji, Zhaorong Bing, Yali Hou, Qidong Wu
  • Publication number: 20200086441
    Abstract: The present invention discloses an MDOF (multi-degree-of-freedom) micro-lubrication intelligent spray head system for a CNC milling machine, comprising an annular rotating platform, a longitudinal telescopic part, a rotating part, an intelligent spray head mounting platform and an information acquisition system. The annular rotating platform comprises a rotating piece which rotates along a horizontal circumferential direction; a bottom of the rotating piece is connected with at least one longitudinal telescopic part; a lower end of the longitudinal telescopic part is connected with the rotating part; the rotating part rotates within a set angle range by taking a point connected with the longitudinal telescopic part as an axis; the intelligent spray head mounting platform is connected with the rotating part and moves along with the rotating part; and the information acquisition system is mounted on the intelligent spray head mounting platform.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Changhe LI, Menghua SUI, Wentao WU, Naiqing ZHANG, Qidong WU, Jun LI, Zhiguang HAN, Heju JI, Teng GAO, Yanbin ZHANG, Min YANG, Dongzhou JIA, Qingan YIN, Xiaoyang ZHANG, Yali HOU
  • Publication number: 20200072774
    Abstract: The present invention discloses an integrated online measurement system for thermophysical property parameters of nanofluid cutting fluid, consisting of a gas path system, a fluid path system, a nanofluid thermal conductivity measurement device, a measurement device for a convective heat transfer coefficient and a nanofluid/workpiece heat partition ratio of the nanofluid cutting fluid, and a grinding force and grinding temperature measurement device or a milling force and milling temperature measurement device; the nanofluid thermal conductivity measurement device is located in the fluid path system; the gas path system provides pressure for the nanofluid in the fluid path system, two nozzles lead out from the fluid path system, and the nanofluid gas spray ejected by the nozzle I is sprayed onto the surface of a workpiece I to form the measurement device for the nanofluid convective heat transfer coefficient and the nanofluid/workpiece heat partition ratio; and the nanofluid gas spray ejected by the nozzle II
    Type: Application
    Filed: November 4, 2019
    Publication date: March 5, 2020
    Inventors: Changhe LI, Min YANG, Runze LI, Yanbin ZHANG, Xianpeng ZHANG, Heju JI, Yali HOU, Naiqing ZHANG, Qidong WU
  • Publication number: 20190301673
    Abstract: A continuous supply precision minimum quantity lubrication pump supporting different lubrication conditions, including a pump system, a gas source processor, a driving system, an oil cup, a water pump, a two-position three-way solenoid valve, a water tank and an emulsion storage tank, wherein the processor is connected with the pump system through a bidirectional joint, the oil cup is connected with the pump system through an oil cup joint, the water pump is installed in a driving box body of the driving system and is connected with the pump system through a hose, the water tank and the emulsion storage tank are connected with the two-position three-way solenoid valve, the two-position three-way solenoid valve is connected with the driving system, and the driving system and the water pump are respectively driven by a stepping motor I and a stepping motor II.
    Type: Application
    Filed: February 2, 2018
    Publication date: October 3, 2019
    Applicants: QINGDAO UNIVERSITY OF TECHNOLOGY, UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Changhe LI, Yanbin ZHANG, Dongzhou JIA, Min YANG, Runze LI, Naiqing ZHANG, Heju JI, Zhaorong BING, Yali HOU, Qidong WU