Patents by Inventor Alex RAYKOWSKI

Alex RAYKOWSKI 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 of ice removal by inducing sudden variation of rotor speed in a gas turbine engine
    Patent number: 11047316
    Abstract: The method can include, in sequence: varying the flow rate of fuel from the first flow rate to a second flow rate, thereby varying the rotor speed from a first speed to a second speed, varying the flow rate of fuel back to the first flow rate, and rotating the rotor at the first speed for a given period of time.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: June 29, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Alex Raykowski
  • Method of shedding ice and fan blade
    Patent number: 10995631
    Abstract: A gas turbine engine can have compressor or fan blades having elongated indentations formed in the radially-inner portion of the pressure face, each elongated indentation having a curved bottom extending transversally between sharp edges, the sharp edges delimiting a width of the elongated indentation from adjacent surfaces of the blade pressure face. During operation of the gas turbine engine, ice can accumulate on the blade, covering the elongated indentations, and the elongated indentations can cause crack appearance in the vicinity of its edge.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: May 4, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Alex Raykowski
  • METHOD OF INDUCING SUDDEN VARIATION OF ROTOR SPEED IN GAS TURBINE ENGINE
    Publication number: 20200325830
    Abstract: The method can include, in sequence: varying the flow rate of fuel from the first flow rate to a second flow rate, thereby varying the rotor speed from a first speed to a second speed, varying the flow rate of fuel back to the first flow rate, and rotating the rotor at the first speed for a given period of time.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 15, 2020
    Inventor: Alex RAYKOWSKI
  • METHOD OF SHEDDING ICE AND FAN BLADE
    Publication number: 20200308980
    Abstract: A gas turbine engine can have compressor or fan blades having elongated indentations formed in the radially-inner portion of the pressure face, each elongated indentation having a curved bottom extending transversally between sharp edges, the sharp edges delimiting a width of the elongated indentation from adjacent surfaces of the blade pressure face. During operation of the gas turbine engine, ice can accumulate on the blade, covering the elongated indentations, and the elongated indentations can cause crack appearance in the vicinity of its edge.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 1, 2020
    Inventor: Alex RAYKOWSKI