Patents by Inventor Andrew Robert Marshall

Andrew Robert Marshall 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).

  • Method for cleaning the compressor of a gas turbine engine
    Patent number: 8337630
    Abstract: There is provided a method for cleaning the compressor of a gas turbine engine. The method comprises providing a fluid passage in the inlet case strut with a nozzle communicating with the fluid passage and the inlet gas path. The fluid passage has a fluid connector for connecting wash/rinse fluid under pressure to the fluid passage. The method further comprises motoring the gas turbine engine, and injecting, through the nozzle, the wash/rinse fluid into the inlet gas path to mix with an incoming flow of air and flow into compressor rotor blades of the compressor.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: December 25, 2012
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Julien de la Bruère-Terreault, Andrew Robert Marshall
  • METHOD FOR CLEANING THE COMPRESSOR OF A GAS TURBINE ENGINE
    Publication number: 20120279523
    Abstract: There is provided a method for cleaning the compressor of a gas turbine engine. The method comprises providing a fluid passage in the inlet case strut with a nozzle communicating with the fluid passage and the inlet gas path. The fluid passage has a fluid connector for connecting wash/rinse fluid under pressure to the fluid passage. The method further comprises motoring the gas turbine engine, and injecting, through the nozzle, the wash/rinse fluid into the inlet gas path to mix with an incoming flow of air and flow into compressor rotor blades of the compressor.
    Type: Application
    Filed: July 18, 2012
    Publication date: November 8, 2012
    Inventors: Julien de la Bruere-Terreault, Andrew Robert Marshall
  • Compressor wash nozzle integrated in an inlet case strut
    Patent number: 8245952
    Abstract: A compressor wash nozzle integrated in an inlet case strut of a turbine engine is described. A fluid passage and a nozzle are defined in the inlet case strut for delivering a wash/rinse fluid into the inlet gas path of the engine. A fluid connector communicates with the fluid passage and is positioned exteriorly of the inlet gas strut and adapted for receiving pressurized wash/rinse fluid for injection through the nozzle into gases flowing in the inlet gas path and in the direction of the compressor for washing and/or rinsing the blades of the compressor.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: August 21, 2012
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Julien de la Bruère-Terreault, Andrew Robert Marshall
  • COMPRESSOR WASH NOZZLE INTEGRATED IN AN INLET CASE STRUT
    Publication number: 20100212703
    Abstract: A compressor wash nozzle integrated in an inlet case strut of a turbine engine is described. A fluid passage and a nozzle are defined in the inlet case strut for delivering a wash/rinse fluid into the inlet gas path of the engine. A fluid connector communicates with the fluid passage and is positioned exteriorly of the inlet gas strut and adapted for receiving pressurized wash/rinse fluid for injection through the nozzle into gases flowing in the inlet gas path and in the direction of the compressor for washing and/or rinsing the blades of the compressor.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 26, 2010
    Inventors: Julien de la Bruere-Terreault, Andrew Robert Marshall