Patents by Inventor Chengsong Wu

Chengsong Wu 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).

  • Heat pump unit control system with enhanced vapor injection capabilities for upstream and downstream liquid extraction
    Patent number: 10393417
    Abstract: A heat pump unit control system, comprising a heat exchanger, a compressor, a first switching element, a second switching element, an enhanced vapor injection electronic expansion valve, and a main circuit electronic expansion valve. A first end of the compressor is connected to a first port of the heat exchanger by the first switching element and the enhanced vapor injection valve, a second port of the heat exchanger is connected to an injection end of the compressor, the end of the first switching element connected to the compressor is connected to a third port of the heat exchanger, a fourth port of the heat exchanger is connected to a second end of the compressor by the main circuit valve, and the end of the first switching element connected to the enhanced vapor injection valve is connected to the fourth port of the heat exchanger by the second switching element.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: August 27, 2019
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Feng Wei, Haidong Lin, Weiping Zheng, Chuanhua Wang, Si Sun, Chengsong Wu, Enquan Zhang
  • Heat Pump Unit Control System
    Publication number: 20180306473
    Abstract: A heat pump unit control system, comprising a heat exchanger, a compressor, a first switching element, a second switching element, an enhanced vapor injection electronic expansion valve, and a main circuit electronic expansion valve. A first end of the compressor is connected to a first port of the heat exchanger by the first switching element and the enhanced vapor injection valve, a second port of the heat exchanger is connected to an injection end of the compressor, the end of the first switching element connected to the compressor is connected to a third port of the heat exchanger, a fourth port of the heat exchanger is connected to a second end of the compressor by the main circuit valve, and the end of the first switching element connected to the enhanced vapor injection valve is connected to the fourth port of the heat exchanger by the second switching element.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 25, 2018
    Inventors: Feng Wei, Haidong Lin, Weiping Zheng, Chuanhua Wang, Si Sun, Chengsong Wu, Enquan Zhang