Patents by Inventor Melvin Swann

Melvin Swann 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).

  • Selecting and applying to fuel-flow splits bias values to correct for elevated inlet air humidity
    Patent number: 8566001
    Abstract: Methods for controlling a gas turbine engine are provided, where a compressor inlet temperature, ambient temperature, and relative humidity are measured. Utilizing these measurements, it is first determined whether an evaporation cooler is actively importing water content into inlet air entering the compressor. This determination is based on whether the inlet air is substantially cooler than the ambient temperature. If so, an EC correction factor is added to an inlet air temperature value (CTIM) and set as an air temperature parameter (INLETIM). Second, it is determined whether the relative humidity is greater than a predefined threshold. If so, a relative humidity (RH) correction factor is added to CTIM and set as the INLETIM. Next, the INLETIM and TTRF are located in a look-up table, and a bias value corresponding to these inputs is identified. The fuel-flow for a fuel circuit is adjusted according to the identified bias value.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: October 22, 2013
    Assignee: Alstom Technology Ltd.
    Inventors: Peter Stuttaford, Nicolas Demougeot, Melvin Swann
  • SELECTING AND APPLYING TO FUEL-FLOW SPLITS BIAS VALUES TO CORRECT FOR ELEVATED INLET AIR HUMIDITY
    Publication number: 20110270503
    Abstract: Methods for controlling a gas turbine engine are provided, where a compressor inlet temperature, ambient temperature, and relative humidity are measured. Utilizing these measurements, it is first determined whether an evaporation cooler is actively importing water content into inlet air entering the compressor. This determination is based on whether the inlet air is substantially cooler than the ambient temperature. If so, an EC correction factor is added to an inlet air temperature value (CTIM) and set as an air temperature parameter (INLETIM). Second, it is determined whether the relative humidity is greater than a predefined threshold. If so, a relative humidity (RH) correction factor is added to CTIM and set as the INLETIM. Next, the INLETIM and TTRF are located in a look-up table, and a bias value corresponding to these inputs is identified. The fuel-flow for a fuel circuit is adjusted according to the identified bias value.
    Type: Application
    Filed: April 14, 2011
    Publication date: November 3, 2011
    Applicant: ALSTOM TECHNOLOGY LTD.
    Inventors: Peter Stuttaford, Nicolas Demougeot, Melvin Swann