Invention Grant
- Patent Title: Gas turbine engine airfoil
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Application No.: US16741918Application Date: 2020-01-14
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Publication No.: US11209013B2Publication Date: 2021-12-28
- Inventor: Edward J. Gallagher , Lisa I. Brilliant , Joseph C. Straccia , Stanley J. Balamucki , Mark A. Stephens , Kate Hudon
- Applicant: RAYTHEON TECHNOLOGIES CORPORATION
- Applicant Address: US CT Farmington
- Assignee: RAYTHEON TECHNOLOGIES CORPORATION
- Current Assignee: RAYTHEON TECHNOLOGIES CORPORATION
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F04D29/38
- IPC: F04D29/38 ; F04D29/54 ; F01D5/14 ; F01D17/16 ; F01D25/24 ; F02C3/04 ; F02C7/36 ; F02K3/06 ; F04D29/32

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
- US20200149545A1 GAS TURBINE ENGINE AIRFOIL Public/Granted day:2020-05-14
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