Invention Grant
- Patent Title: Gas turbine engine airfoil
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Application No.: US16744749Application Date: 2020-01-16
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Publication No.: US11408436B2Publication Date: 2022-08-09
- 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: F04D29/32
- IPC: F04D29/32 ; F04D29/54 ; F01D5/14 ; F01D9/02 ; F02C3/04 ; F02C7/36 ; F02K3/06 ; F04D29/38

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 arranged in the low pressure compressor 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 an axial stacking offset and span position that includes a curve with a negative slope from 90% span to 100% span. The negative slope leans forward relative to an engine axis.
Public/Granted literature
- US20200291955A1 GAS TURBINE ENGINE AIRFOIL Public/Granted day:2020-09-17
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