Patents by Inventor Zhang Leping

Zhang Leping 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).

  • METHOD FOR MEASURING DILUTION AND VISCOSITY OF LUBRICATING OIL, CONTROL METHOD AND CONTROL MODULE, AND REFRIGERATION AIR CONDITIONING SYSTEM
    Publication number: 20150185197
    Abstract: Embodiments of the present invention provide a method for measuring dilution and/or viscosity of lubricating oil in a compressor. The method includes: detecting a pressure difference between an inlet and an outlet of an oil pump in the compressor by pressure difference detection apparatus, and determining the dilution of the lubricating oil and/or the viscosity of the lubricating oil according to the pressure difference detected; a lower end of the oil pump being located in the lubricating oil in the oil sump, a high-pressure side of the pressure difference detection apparatus being connected to the outlet of the oil pump and a low-pressure side of the pressure difference detection apparatus being connected to bottom of the oil sump. Embodiments of the present invention further provides a method for detecting dilution of lubricating oil, a control method and control module for controlling a compressor, and a refrigeration air conditioning system.
    Type: Application
    Filed: December 23, 2014
    Publication date: July 2, 2015
    Inventors: Fan Liang, Sun Zili, Ding Siyuan, Huang Zhigang, Li Jingyuan, Sun Yingke, Wang Dong, Zhang Leping