Invention Application
- Patent Title: TIP LEAKAGE FLOW DIRECTIONALITY CONTROL
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Application No.: US15918190Application Date: 2018-03-12
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Publication No.: US20180202297A1Publication Date: 2018-07-19
- Inventor: Mark F. Zelesky , Andrew S. Aggarwala
- Applicant: UNITED TECHNOLOGIES CORPORATION
- Main IPC: F01D5/18
- IPC: F01D5/18 ; F01D11/10 ; F01D5/14 ; F01D5/20

Abstract:
An airfoil according to an example includes, among other things, a suction sidewall and a pressure sidewall. A tip wall extends from a leading edge to a trailing edge and joins respective outer ends of the suction and pressure sidewalls. A tip rib extends along a pressure side of the tip wall. A tip leakage control channel is provided at the tip wall and has a floor that extends between a first control channel vane sidewall and a second control channel vane sidewall established by a corresponding tip leakage control vane. Each of the tip leakage control vanes is contiguous with and extending from a suction side surface of the tip rib. The tip leakage channel extends toward the trailing edge while extending toward the suction sidewall. One or more of an internal cavity, a channel cooling aperture, and a sidewall microcircuit may be provided.
Public/Granted literature
- US10815790B2 Tip leakage flow directionality control Public/Granted day:2020-10-27
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