Patents by Inventor Xiucheng Ji

Xiucheng 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).

  • Oil balance device, a compressor unit and a method for performing an oil balance operation between a plurality of compressor units
    Patent number: 8959947
    Abstract: The present invention disclosures an oil balance device and a method for performing an oil balance operation between a plurality of compressor units, which are suitable for air conditioner units comprising at least two parallel connected compressor units. Each compressor unit comprises at least one parallel connected compressors. The oil balance device comprises an oil reservoir, a first pipe, a second pipe, a third pipe and a fourth pipe. The four pipes communicate with the oil reservoir respectively. Each pipe is provided with at least one valve to control the opening and the closing of the corresponding pipe.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 24, 2015
    Assignees: Johnson Controls Technology Company, Johnson Controls Building Efficiency Technology (WUXI) Company
    Inventors: Stone Zhai, Xiucheng Ji, Zhonghua Gu
  • OIL BALANCE DEVICE, A COMPRESSOR UNIT AND A METHOD FOR PERFORMING AN OIL BALANCE OPERATION BETWEEN A PLURALITY OF COMPRESSOR UNITS
    Publication number: 20110162746
    Abstract: The present invention disclosures an oil balance device and a method for performing an oil balance operation between a plurality of compressor units, which are suitable for air conditioner units comprising at least two parallel connected compressor units. Each compressor unit comprises at least one parallel connected compressors. The oil balance device comprises an oil reservoir, a first pipe, a second pipe, a third pipe and a fourth pipe. The four pipes communicate with the oil reservoir respectively. Each pipe is provided with at least one valve to control the opening and the closing of the corresponding pipe.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicants: JOHNSON CONTROLS TECHNOLOGY COMPANY, JOHNSON CONTROLS BUILDING EFFICIENCY TECHNOLOGY (WUXI) COMPANY, LTD.
    Inventors: Stone ZHAI, Xiucheng Ji, Zhonghua Gu