Patents by Inventor Xiaojun Campbell

Xiaojun Campbell 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).

  • Engine bleed air ducting into heat exchanger
    Patent number: 11549434
    Abstract: A gas turbine engine includes a compressor section, a combustor, and a turbine section. A bleed tap taps air from the compressor section through a bleed valve. The bleed valve is selectively opened by a control to dump air from the compressor section to a dump outlet. A heat exchanger duct includes a duct air inlet to cool a fluid in a heat exchanger and a duct air outlet. The dump outlet is within the heat exchanger duct.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: January 10, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Steven H. Zysman, Karl D. Blume, James H. Anderson, Holly Teufel, Jesse W. Clauson, Xiaojun Campbell, William O. Taylor, Graham A. Kaiser, Karl Milenkovic, Michael C. Rhodes, Tsering Dolma
  • ENGINE BLEED AIR DUCTING INTO HEAT EXCHANGER
    Publication number: 20210363923
    Abstract: A gas turbine engine includes a compressor section, a combustor, and a turbine section. A bleed tap taps air from the compressor section through a bleed valve. The bleed valve is selectively opened by a control to dump air from the compressor section to a dump outlet. A heat exchanger duct includes a duct air inlet to cool a fluid in a heat exchanger and a duct air outlet. The dump outlet is within the heat exchanger duct.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 25, 2021
    Inventors: Steven H. Zysman, Karl D. Blume, James H. Anderson, Holly Teufel, Jesse W. Clauson, Xiaojun Campbell, William O. Taylor, Graham A. Kaiser, Karl Milenkovic, Michael C. Rhodes, Tsering Dolma
  • Engine bleed air ducting into heat exchanger
    Patent number: 11078837
    Abstract: A gas turbine engine includes a compressor section, a combustor, and a turbine section. A bleed tap taps air from the compressor section through a bleed valve. The bleed valve is selectively opened by a control to dump air from the compressor section to a dump outlet. A heat exchanger duct includes a duct air inlet to cool a fluid in a heat exchanger and a duct air outlet. The dump outlet is within the heat exchanger duct.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: August 3, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Steven H. Zysman, Karl D. Blume, James H. Anderson, Holly Teufel, Jesse W. Clauson, Xiaojun Campbell, William O. Taylor, Graham A. Kaiser, Karl Milenkovic, Michael C. Rhodes, Tsering Dolma
  • ENGINE BLEED AIR DUCTING INTO HEAT EXCHANGER
    Publication number: 20200248620
    Abstract: A gas turbine engine includes a compressor section, a combustor, and a turbine section. A bleed tap taps air from the compressor section through a bleed valve. The bleed valve is selectively opened by a control to dump air from the compressor section to a dump outlet. A heat exchanger duct includes a duct air inlet to cool a fluid in a heat exchanger and a duct air outlet. The dump outlet is within the heat exchanger duct.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 6, 2020
    Inventors: Steven H. Zysman, Karl D. Blume, James H. Anderson, Holly Teufel, Jesse W. Clauson, Xiaojun Campbell, William O. Taylor, Graham A. Kaiser, Karl Milenkovic, Michael C. Rhodes, Tsering Dolma
  • Heat exchanger
    Patent number: 9267434
    Abstract: A gas turbine engine has a fan, a compressor section, a combustor, and a turbine section. The fan delivers a portion of air into the compressor, and into a duct, as bypass air. A bleed air system bleeds a quantity of air from the compressor into a chamber at least at low power conditions of the engine. The bleed air system has an opening which may be selectively closed to block bleed air, or opened to allow bleed flow from the compressor into the chamber. A heat exchanger is positioned such that a first surface of the heat exchanger is contacted by bypass air in the duct, and a second surface of the heat exchanger is contacted by bleed air when the bleed air system directs air from the compressor into the chamber.
    Type: Grant
    Filed: January 29, 2012
    Date of Patent: February 23, 2016
    Assignee: United Technologies Corporation
    Inventors: Xiaojun Campbell, Thomas G. Phillips, Kathleen R. Phillips
  • HEAT EXCHANGER
    Publication number: 20130192254
    Abstract: A gas turbine engine has a fan, a compressor section, a combustor, and a turbine section. The fan delivers a portion of air into the compressor, and into a duct, as bypass air. A bleed air system bleeds a quantity of air from the compressor into a chamber at least at low power conditions of the engine. The bleed air system has an opening which may be selectively closed to block bleed air, or opened to allow bleed flow from the compressor into the chamber. A heat exchanger is positioned such that a first surface of the heat exchanger is contacted by bypass air in the duct, and a second surface of the heat exchanger is contacted by bleed air when the bleed air system directs air from the compressor into the chamber.
    Type: Application
    Filed: January 29, 2012
    Publication date: August 1, 2013
    Inventors: Xiaojun Campbell, Thomas G. Phillips, Kathleen R. Phillips