Patents by Inventor Zheng D. Lou

Zheng D. Lou 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).

  • Air conditioning circuit control using a thermostatic expansion valve and sequence valve
    Patent number: 7819333
    Abstract: A valve assembly for an air conditioning system includes a liquid line port pressurized at a discharge pressure, an evaporator inlet port pressurized at a suction pressure, a sequence valve for controlling a first flow path between the liquid line port and an outlet in response to a differential between the discharge pressure and the suction pressure, and a thermostatic expansion valve that includes an actuator and an expansion valve member for controlling a second flow path between the outlet and the evaporator inlet port in response to a pressure differential across the actuator.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: October 26, 2010
    Assignee: Automotive Components Holdings, LLC
    Inventors: Zheng D. Lou, Thomas J. Joseph
  • Air Conditioning Circuit Control Using a Thermostatic Expansion Valve and Sequence Valve
    Publication number: 20090288434
    Abstract: A valve assembly for an air conditioning system includes a liquid line port pressurized at a discharge pressure, an evaporator inlet port pressurized at a suction pressure, a sequence valve for controlling a first flow path between the liquid line port and an outlet in response to a differential between the discharge pressure and the suction pressure, and a thermostatic expansion valve that includes an actuator and an expansion valve member for controlling a second flow path between the outlet and the evaporator inlet port in response to a pressure differential across the actuator.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 26, 2009
    Inventors: Zheng D. Lou, Thomas J. Joseph