Invention Grant
- Patent Title: Gas turbine engine airfoil
- Patent Title (中): 燃气涡轮发动机翼型
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Application No.: US14625413Application Date: 2015-02-18
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Publication No.: US09163517B2Publication Date: 2015-10-20
- Inventor: Edward J. Gallagher , Byron R. Monzon , Ling Liu , Linda S. Li , Darryl Whitlow , Barry M. Ford
- Applicant: United Technologies Corporation
- Applicant Address: US CT Hartford
- Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee Address: US CT Hartford
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D5/14
- IPC: F01D5/14 ; F02K3/00

Abstract:
An airfoil for a turbine engine includes pressure and suction sides that extend in a radial direction from a 0% span position at an inner flow path location to a 100% span position at an airfoil tip. The airfoil has a relationship between a stacking offset and a span position that is at least a third order polynomial curve that includes at least one positive and negative slope. The positive slope crosses an initial axial stacking offset that corresponds to the 0% span position at a zero-crossing position. A first axial stacking offset X1 is provided from the zero-crossing position to a negative-most value on the curve. A second axial stacking offset X2 is provided from the zero-crossing position to a positive-most value on the curve. A ratio of the second to first axial stacking offset X2/X1 is between 1.5 and 2.0 or less than 1.4.
Public/Granted literature
- US20150233251A1 GAS TURBINE ENGINE AIRFOIL Public/Granted day:2015-08-20
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