Patents by Inventor James R. Johnsen

James R. Johnsen 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).

  • Turbocompressor antisurge control by vibration monitoring
    Patent number: 10590943
    Abstract: The proposed mechanical method of turbocompressor surge detection uses vibration signals from vibration monitoring equipment mounted on the compressor components to detect a surge event and provide antisurge control thereby. This method utilizes only mechanical information to identify surge, as compared to present day antisurge controllers that use compressor thermodynamic information such as flow, pressure, and temperature to locate a compressor's operating point on a compressor map compared to a surge region.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: March 17, 2020
    Assignee: Compressor Controls Corporation
    Inventor: James R. Johnsen
  • TURBOCOMPRESSOR ANTISURGE CONTROL BY VIBRATION MONITORING
    Publication number: 20170218968
    Abstract: The proposed mechanical method of turbocompressor surge detection uses vibration signals from vibration monitoring equipment mounted on the compressor components to detect a surge event and provide antisurge control thereby. This method utilizes only mechanical information to identify surge, as compared to present day antisurge controllers that use compressor thermodynamic information such as flow, pressure, and temperature to locate a compressor's operating point on a compressor map compared to a surge region.
    Type: Application
    Filed: April 17, 2017
    Publication date: August 3, 2017
    Inventor: James R. Johnsen
  • Turbocompressor antisurge control by vibration monitoring
    Patent number: 9624936
    Abstract: The proposed mechanical method of turbocompressor surge detection uses vibration signals from vibration monitoring equipment mounted on the compressor components to detect a surge event and provide antisurge control thereby. This method utilizes only mechanical information to identify surge, as compared to present day antisurge controllers that use compressor thermodynamic information such as flow, pressure, and temperature to locate a compressor's operating point on a compressor map compared to a surge region.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: April 18, 2017
    Assignee: Compressor Controls Corporation
    Inventor: James R. Johnsen
  • Turbocompressor Antisurge Control by Vibration Monitoring
    Publication number: 20130309060
    Abstract: The proposed mechanical method of turbocompressor surge detection uses vibration signals from vibration monitoring equipment mounted on the compressor components to detect a surge event and provide antisurge control thereby. This method utilizes only mechanical information to identify surge, as compared to present day antisurge controllers that use compressor thermodynamic information such as flow, pressure, and temperature to locate a compressor's operating point on a compressor map compared to a surge region.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 21, 2013
    Inventor: James R. Johnsen