Patents by Inventor Simon John Hartropp

Simon John Hartropp 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).

  • System and method for controlling fuel flow to an aircraft engine during start
    Patent number: 11643981
    Abstract: A method and system for controlling fuel flow to an aircraft engine during start are provided. Following light-off, an actual value of at least one engine operating parameter is obtained. Based on a difference between the actual value and a target value, a first command is generated to cause fuel flow to be provided to the engine's combustor according to a computed fuel flow rate defined by a fuel schedule of the engine. When the computed fuel flow rate is within a fuel flow rate limit, the first command is output. Otherwise, a limiting factor is applied to the computed fuel flow rate to limit a reduction in fuel flow to the combustor and a limited fuel flow rate is obtained, and a second command is output to cause fuel flow to be provided to the combustor according to the limited fuel flow rate.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: May 9, 2023
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Michael Chun, Shahin Shokatpour Torab, Simon John Hartropp
  • SYSTEM AND METHOD FOR CONTROLLING FUEL FLOW TO AN AIRCRAFT ENGINE DURING START
    Publication number: 20230069668
    Abstract: A method and system for controlling fuel flow to an aircraft engine during start are provided. Following light-off, an actual value of at least one engine operating parameter is obtained. Based on a difference between the actual value and a target value, a first command is generated to cause fuel flow to be provided to the engine's combustor according to a computed fuel flow rate defined by a fuel schedule of the engine. When the computed fuel flow rate is within a fuel flow rate limit, the first command is output. Otherwise, a limiting factor is applied to the computed fuel flow rate to limit a reduction in fuel flow to the combustor and a limited fuel flow rate is obtained, and a second command is output to cause fuel flow to be provided to the combustor according to the limited fuel flow rate.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 2, 2023
    Inventors: Michael CHUN, Shahin Shokatpour TORAB, Simon John HARTROPP
  • Method of monitoring gas turbine engine operation
    Patent number: 8594903
    Abstract: A system, method and apparatus for monitoring the performance of a gas turbine engine. A counter value indicative of the comparison between the engine condition and the threshold condition is adjusted. The aircraft operator is warned of an impending maintenance condition based on the counter value and determines an appropriate course of action.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: November 26, 2013
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Mark Edward Feeney, Keith John Leslie, Yusuf Razi Syed, Simon John Hartropp
  • METHOD OF MONITORING GAS TURBINE ENGINE OPERATION
    Publication number: 20090229272
    Abstract: A system, method and apparatus for monitoring the performance of a gas turbine engine. A counter value indicative of the comparison between the engine condition and the threshold condition is adjusted. The aircraft operator is warned of an impending maintenance condition based on the counter value and determines an appropriate course of action.
    Type: Application
    Filed: December 29, 2008
    Publication date: September 17, 2009
    Inventors: Mark Edward FEENEY, Keith John Leslie, Yusuf Razi Syed, Simon John Hartropp
  • Method of monitoring gas turbine engine operation
    Patent number: 7487029
    Abstract: A system, method and apparatus for monitoring the performance of a gas turbine engine. A counter value Indicative of the comparison between the engine condition and the threshold condition is adjusted. The aircraft operator is warned of an impending maintenance condition based on the counter value and determines an appropriate course of action.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: February 3, 2009
    Inventors: Mark Edward Feeney, Keith John Leslie, Yusuf Razl Syed, Simon John Hartropp