Invention Grant
- Patent Title: Turbine blade tip shroud with protrusion under wing
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Application No.: US17651827Application Date: 2022-02-21
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Publication No.: US11713685B2Publication Date: 2023-08-01
- Inventor: Derek Kanoa Tan , William Scott Zemitis , Richard Ryan Pilson , Felipe Roman-Morales , Brian Stephen Gray
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Hoffman Warnick LLC
- Agent James Pemrick; Charlotte Wilson
- Main IPC: F01D5/22
- IPC: F01D5/22 ; F01D5/14 ; F01D5/18

Abstract:
A tip shroud includes a pair of opposed, axially extending wings configured to couple to an airfoil at a radially outer end thereof. The tip shroud also includes a tip rail extending radially from the pair of opposed, axially extending wings. Tip shroud surface profiles may be of the downstream and/or upstream side of the tip rail, a leading Z-notch of the tip shroud, and/or downstream radially inner surface of a wing. The surface profiles may have a nominal profile substantially in accordance with at least part of Cartesian coordinate values of X and Y, and perhaps Z and a thickness, set forth in a respective table. The radially inner surface of the wing may define a protrusion extending along the radially outer end of the airfoil, the suction side fillet, and a radial inner surface of the wing to an axial edge of the wing.
Public/Granted literature
- US20220325629A1 TURBINE BLADE TIP SHROUD WITH PROTRUSION UNDER WING Public/Granted day:2022-10-13
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