Patents by Inventor Robert E. Stabley, IV

Robert E. Stabley, IV 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 system
    Patent number: 7905102
    Abstract: A stability control algorithm is provided for a centrifugal compressor. The stability control algorithm is used to control a variable geometry diffuser and a hot gas bypass valve (when provided) in response to the detection of compressor instabilities. The stability control algorithm can adjust the position of a diffuser ring in the variable geometry diffuser in response to the detection of a surge condition or a stall condition. The diffuser ring in the variable geometry diffuser can be adjusted to determine an optimal position of the diffuser ring. The stability control algorithm can also be used to open a hot gas bypass valve in response to the detection of continued surge conditions.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: March 15, 2011
    Assignee: Johnson Controls Technology Company
    Inventors: Mark R. Bodell, II, Robert E. Stabley, IV, Wanda J. Miller