Patents Assigned to Rolls-Royce North American Technolgies Inc.
  • System and method of controlling tip clearance in a shroud assembly for a bladed disc
    Patent number: 10883377
    Abstract: An assembly in a turbine engine having a dynamically moveable flowpath boundary member for encasing a rotatable bladed disc and maintaining a clearance gap between the flowpath boundary member and the blade tips of the bladed disc. The assembly comprises a static casing, a flowpath boundary member carried by the casing, and a refrigeration system configured to remove heat from the flowpath boundary member to thereby thermally expand and contract the flowpath boundary member to control blade tip clearance.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: January 5, 2021
    Assignee: Rolls-Royce North American Technolgies Inc.
    Inventor: Richard J. Skertic