Invention Application
- Patent Title: GAS TURBINE ENGINE AIRFOIL
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Application No.: US16741918Application Date: 2020-01-14
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Publication No.: US20200149545A1Publication Date: 2020-05-14
- Inventor: Edward J. Gallagher , Lisa I. Brilliant , Joseph C. Straccia , Stanley J. Balamucki , Mark A. Stephens , Kate Hudon
- Applicant: UNITED TECHNOLOGIES CORPORATION
- Main IPC: F04D29/38
- IPC: F04D29/38 ; F04D29/32 ; F02K3/06 ; F02C7/36 ; F02C3/04 ; F01D25/24 ; F01D17/16 ; F01D5/14 ; F04D29/54

Abstract:
A gas turbine engine includes a combustor section arranged between a compressor section and a turbine section. The compressor section includes at least a low pressure compressor and a high pressure compressor. The high pressure compressor is arranged upstream of the combustor section. A fan section has an array of twenty-six or fewer fan blades. The low pressure compressor is downstream from the fan section. An airfoil is provided in the compressor section outside the high pressure compressor section and includes pressure and suction sides that extend in a radial direction from a 0% span position to a 100% span position. The airfoil has a relationship between a stagger angle and span position that defines a curve with the stagger angle greater than 35° from 0% span to at least 50% span. The stagger angle has a positive slope from 20% span to 100% span.
Public/Granted literature
- US11209013B2 Gas turbine engine airfoil Public/Granted day:2021-12-28
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