Patents by Inventor Christopher Nyeholt

Christopher Nyeholt 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).

  • Automotive HVAC system and method of operating same utilizing enthalpy-based control
    Publication number: 20050279110
    Abstract: The present invention concerns a method for controlling the operation of an automotive HVAC system. The HVAC system includes at least a refrigerant compressor and a refrigerant evaporator. The method includes the steps of calculating an ambient air enthalpy value; comparing the calculated ambient air enthalpy value to at least one predetermined enthalpy value; and selectively changing the operation of the refrigerant compressor based on the comparison.
    Type: Application
    Filed: June 22, 2004
    Publication date: December 22, 2005
    Inventors: Xin Zeng, Christopher Nyeholt, Harry Eustice