Patents by Inventor Alexandre AYERS

Alexandre AYERS 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).

  • Tip-controlled integrally bladed rotor for gas turbine engine
    Patent number: 9856740
    Abstract: An integrally bladed rotor for a gas turbine engine includes a hub, a plurality of blades radially extending from the hub and being integrally formed therewith. The hub having a rim from which the blades project and a pair of axially opposed split hub members extending at least radially inward from the rim. Each of the split hub members has a radially outer flex arm portion extending form the hub and a radially inner moment flange portion. At least one moment inducing element separately formed from the hub is mounted axially between the opposed split hub members and acts on the moment flange portions of the opposed split hub members to generate an inward bending moment on the flex arm portions of the opposed split hub members during rotation of the rotor, thereby deflecting the rim and the blades of the rotor radially inwardly.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: January 2, 2018
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Alexandre Ayers
  • TIP-CONTROLLED INTEGRALLY BLADED ROTOR FOR GAS TURBINE ENGINE
    Publication number: 20160102565
    Abstract: An integrally bladed rotor for a gas turbine engine includes a hub, a plurality of blades radially extending from the hub and being integrally formed therewith. The hub having a rim from which the blades project and a pair of axially opposed split hub members extending at least radially inward from the rim. Each of the split hub members has a radially outer flex arm portion extending form the hub and a radially inner moment flange portion. At least one moment inducing element separately formed from the hub is mounted axially between the opposed split hub members and acts on the moment flange portions of the opposed split hub members to generate an inward bending moment on the flex arm portions of the opposed split hub members during rotation of the rotor, thereby deflecting the rim and the blades of the rotor radially inwardly.
    Type: Application
    Filed: December 18, 2015
    Publication date: April 14, 2016
    Inventor: Alexandre Ayers
  • Tip-controlled integrally bladed rotor for gas turbine
    Patent number: 9234435
    Abstract: An integrally bladed rotor for a gas turbine engine includes a hub, a plurality of blades radially extending from the hub and being integrally formed therewith. The hub having a rim from which the blades project and a pair of axially opposed split hub members extending at least radially inward from the rim. Each of the split hub members has a radially outer flex arm portion extending form the hub and a radially inner moment flange portion. At least one moment inducing element separately formed from the hub is mounted axially between the opposed split hub members and acts on the moment flange portions of the opposed split hub members to generate an inward bending moment on the flex arm portions of the opposed split hub members during rotation of the rotor, thereby deflecting the rim and the blades of the rotor radially inwardly.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: January 12, 2016
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Alexandre Ayers
  • TIP-CONTROLLED INTEGRALLY BLADED ROTOR FOR GAS TURBINE ENGINE
    Publication number: 20140250897
    Abstract: An integrally bladed rotor for a gas turbine engine includes a hub, a plurality of blades radially extending from the hub and being integrally formed therewith. The hub having a rim from which the blades project and a pair of axially opposed split hub members extending at least radially inward from the rim. Each of the split hub members has a radially outer flex arm portion extending form the hub and a radially inner moment flange portion. At least one moment inducing element separately formed from the hub is mounted axially between the opposed split hub members and acts on the moment flange portions of the opposed split hub members to generate an inward bending moment on the flex arm portions of the opposed split hub members during rotation of the rotor, thereby deflecting the rim and the blades of the rotor radially inwardly.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: Pratt & Whitney Canada Corp.
    Inventor: Alexandre AYERS