Patents by Inventor Robert C. Wibbelsman

Robert C. Wibbelsman 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 for a gas turbine engine
    Patent number: 5107674
    Abstract: The invention concerns a starting system for a gas turbine aircraft engine which automatically controls the sequencing of events needed during engine startup. The control schedules fuel in a manner which avoids stalls, and, further, takes corrective actions when stalls occur, both on the ground and in the air. The control detects failures in the starter energy source, which can cause an abortive start and damaging temperatures. The control also provides unique scheduling of fuel in severely cold conditions.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: April 28, 1992
    Assignee: General Electric Company
    Inventors: Robert C. Wibbelsman, Robert L. Mayer
  • Bleed valve control system
    Patent number: 4102595
    Abstract: The opening of variable bleed doors is scheduled as a function of both booster and compressor speed so as to better maintain the desired booster stall margin and increase efficiency during certain periods of engine operation. The schedule based on core speed is modified in response to changes in fan speed to increase or decrease the amount of bleed, thereby increasing stall margin or improving the steady-state performance, respectively.
    Type: Grant
    Filed: October 19, 1976
    Date of Patent: July 25, 1978
    Assignee: General Electric Company
    Inventor: Robert C. Wibbelsman