Patent ID: 11959389
Assignee: PRATT & WHITNEY CANADA CORP.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A turbine section comprising:
a turbine support case extending circumferentially around an axis;
a circumferential array of turbine blades disposed within the turbine support case for rotation about the axis; and
a circumferentially segmented turbine shroud mounted inside the turbine support case about the circumferential array of turbine blades, the circumferentially segmented turbine shroud including a plurality of shroud segments disposed circumferentially adjacent to one another, each shroud segment having a body including:
a platform having a radially inner surface facing towards the axis and a radially outer surface facing away from the axis; and
a forward hook and an aft hook of the platform extending radially outwardly from the radially outer surface of the platform for engagement with a shroud support structure of the turbine support case;

wherein one or more of the plurality of shroud segments have a pin receiving hole defined in the body thereof; and
wherein an anti-rotation pin has a shank portion securely engaged in the pin receiving hole and a head portion loosely received in a localisation slot defined in a distal end of a rail portion of an aft hook of the shroud support structure, the head portion positioned radially between the radially outer surface of the platform and an axially extending rail portion of the aft hook of the platform.