Patents Assigned to PRATT & WITHNEY CANADA CORP.
  • Patent number: 11629615
    Abstract: A turbine exhaust case (TEC) has an outer case and an inner case structurally interconnected by a plurality of circumferentially spaced-apart struts. At least one of the struts has an airfoil body with a hollow core. The airfoil body has opposed pressure and suction sides extending chordwise from a leading edge to a trailing edge and spanwise from a radially inner end to a radially outer end. The radially inner end of the strut has a strut wall extension that extends through the inner case to a location radially inward of the inner case relative to the central axis.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: April 18, 2023
    Assignee: PRATT & WITHNEY CANADA CORP.
    Inventor: Guy Lefebvre
  • Patent number: 9752616
    Abstract: A bearing system comprises a bearing configured to be mounted to a shaft. A bearing housing interfaces the bearing to a structure. An annular gap is defined between an outer annular surface of the bearing housing and the structure and configured to receive oil therein. An outlet defined in an outer section surface of the bearing housing is oriented toward a component axially spaced from the bearing. A fluid passageway between the at least one outlet and the annular gap for fluid communication therebetween. In use the fluid passageway directs pressurized oil from the annular gap to the outlet to reach the adjacent component. A method for using oil from a bearing to cool or lubricate a component axially spaced from the bearing is also provided.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: September 5, 2017
    Assignee: PRATT & WITHNEY CANADA CORP.
    Inventors: Abdelkhalek Saadi, Roger Huppe, Daniel Blais