Patents by Inventor Zhaoli G. Yang

Zhaoli G. Yang 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 and air conditioning system for a vehicle
    Patent number: 6862892
    Abstract: A heat pump and air conditioning system for a vehicle that has at least one coolant loop selectively connecting an engine cooling system with a heater core, a first coolant/refrigerant heat exchanger, and/or a second coolant/refrigerant heat exchanger, in order to warm a passenger compartment of the vehicle. The system also includes a refrigerant loop that includes a first expansion device between a condenser and evaporator, and a second expansion device between the first coolant/refrigerant heat exchanger and the second coolant/refrigerant heat exchanger. The refrigerant loop provides for cooling of the passenger compartment of the vehicle, as well as operating as a heat pump, together with the at least one coolant loop, to provide heat to the vehicle passenger compartment.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: March 8, 2005
    Assignee: Visteon Global Technologies, Inc.
    Inventors: John J. Meyer, Chao A. Zhang, Zhaoli G. Yang, Evangelos Papoulis