Patents by Inventor PRATT & WHITNEY CANADA CORP.

PRATT & WHITNEY CANADA CORP. 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).

  • ROTOR DISC AND METHOD OF BALANCING
    Publication number: 20130086805
    Abstract: A rotor disc, such as one made of a damage intolerant material or other material sensitive to stress concentrations, has at least one balancing assembly which includes a plurality of circumferentially spaced-apart sacrificial protrusions projecting between adjacent stress-relieving slots. Selective material removal is permitted from the rotor disc, while managing stress concentrations in the rotor disc created by such material removal, such that the rotor disc may be balanced without detrimentally affecting its service life.
    Type: Application
    Filed: November 30, 2012
    Publication date: April 11, 2013
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventor: Pratt & Whitney Canada Corp.
  • ROTOR WITH IMPROVED BALANCING FEATURES
    Publication number: 20130071245
    Abstract: A rotor assembly for a gas turbine engine including a circumferential array of regularly spaced apart features provided on the disk which are each configured for receiving a balancing weight. The circumferential array of features has an angular orientation relative to the circumferential array of blades such that the features are each located at an at least substantially same offset angle from a stacking line of a respective adjacent blade.
    Type: Application
    Filed: November 13, 2012
    Publication date: March 21, 2013
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventor: PRATT & WHITNEY CANADA CORP.
  • METHOD FOR CENTERING ENGINE STRUCTURES
    Publication number: 20130061473
    Abstract: A method for centering an engine structure such as a bearing housing is provided which may be used, for example, during assembly of a mid turbine frame or other engine case structure. In one aspect, the method includes using spacers with respective radial spokes which connect inner and outer portions of the case. In another aspect, centring may be provided by machining selected contacting surfaces of selected components.
    Type: Application
    Filed: October 19, 2012
    Publication date: March 14, 2013
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventor: PRATT & WHITNEY CANADA CORP.
  • COMBUSTOR HEAT SHIELD WITH INTEGRATED LOUVER AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20130031909
    Abstract: A combustor dome heat shield and a louver are separately metal injection molded and then fused together to form a one-piece combustor heat shield.
    Type: Application
    Filed: October 10, 2012
    Publication date: February 7, 2013
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventor: PRATT & WHITNEY CANADA CORP.