Invention Grant
- Patent Title: Blade tip seal
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Application No.: US15448318Application Date: 2017-03-02
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Publication No.: US10883373B2Publication Date: 2021-01-05
- Inventor: Christopher Hall , M. Stephen Krautheim
- Applicant: Rolls-Royce Corporation
- Applicant Address: US IN Indianapolis
- Assignee: Rolls-Royce Corporation
- Current Assignee: Rolls-Royce Corporation
- Current Assignee Address: US IN Indianapolis
- Agency: Barnes & Thornburg LLP
- Main IPC: F01D5/20
- IPC: F01D5/20 ; F01D11/12

Abstract:
A blade tip sealing portion forms the distal end of a rotor blade in a turbine engine to reduce or prevent leakage through the blade tip clearance. A rotor assembly comprises a casing, a rotor, and at least one rotor blade coupled to the rotor. The rotor blade comprises a root portion coupled to the rotor, a main airfoil body extending radially from the root portion, and a blade tip sealing portion. The blade tip sealing portion comprises a blade tip platform and a plurality of sealing members. The sealing members are positioned on the blade tip platform at an angle substantially perpendicular to an air flow across the blade tip platform and are spaced to effect overlap of adjacent sealing members in the direction of the air flow.
Public/Granted literature
- US20180355732A1 BLADE TIP SEAL Public/Granted day:2018-12-13
Information query
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