Patents by Inventor Kokjovi Coussey

Kokjovi Coussey 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).

  • Control algorithm for electronic expansion valve modulation
    Patent number: 10254026
    Abstract: An electronic expansion valve (EEV) is employed in refrigeration systems to regulate the flow of refrigerant through an evaporator. The position of the EEV is controlled through a first control loop that generates a first position signal based on superheat feedback associated with the refrigeration system, and a second control loop that generates a second position signal based on pressure feedback associated with the refrigeration system. The larger of the first position signal and the second position signal is selected to control the position of the EEV value, and the selected position signal is provided in feedback to both the first control loop and the second control loop.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: April 9, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Tejendra Patel, Jeffrey Ernst, Bruce R. Schroder, Robert M. DeRoy, Kokjovi Coussey