Patents by Inventor Gregory R. Dawson

Gregory R. Dawson 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 recovery system series arrangements
    Patent number: 9816402
    Abstract: The present disclosure is directed to heat recovery systems that employ two or more organic Rankine cycle (ORC) units disposed in series. According to certain embodiments, each ORC unit includes an evaporator that heats an organic working fluid, a turbine generator set that expands the working fluid to generate electricity, a condenser that cools the working fluid, and a pump that returns the working fluid to the evaporator. The heating fluid is directed through each evaporator to heat the working fluid circulating within each ORC unit, and the cooling fluid is directed through each condenser to cool the working fluid circulating within each ORC unit. The heating fluid and the cooling fluid flow through the ORC units in series in the same or opposite directions.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: November 14, 2017
    Assignee: Johnson Controls Technology Company
    Inventors: Justin P. Kauffman, Andrew M. Welch, Gregory R. Dawson, Eric N. Minor
  • Heat Recovery System Series Arrangements
    Publication number: 20120192563
    Abstract: The present disclosure is directed to heat recovery systems that employ two or more organic Rankine cycle (ORC) units disposed in series. According to certain embodiments, each ORC unit includes an evaporator that heats an organic working fluid, a turbine generator set that expands the working fluid to generate electricity, a condenser that cools the working fluid, and a pump that returns the working fluid to the evaporator. The heating fluid is directed through each evaporator to heat the working fluid circulating within each ORC unit, and the cooling fluid is directed through each condenser to cool the working fluid circulating within each ORC unit. The heating fluid and the cooling fluid flow through the ORC units in series in the same or opposite directions.
    Type: Application
    Filed: January 25, 2012
    Publication date: August 2, 2012
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: Justin P. Kauffman, Andrew M. Welch, Gregory R. Dawson, Eric N. Minor