Invention Grant
- Patent Title: Modal noise reduction for gas turbine engine
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Application No.: US17689260Application Date: 2022-03-08
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Publication No.: US11754094B2Publication Date: 2023-09-12
- Inventor: David A. Topol
- Applicant: RAYTHEON TECHNOLOGIES CORPORATION
- Applicant Address: US CT Farmington
- Assignee: RTX CORPORATION
- Current Assignee: RTX CORPORATION
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F04D29/66
- IPC: F04D29/66 ; F01D5/26 ; F01D5/02 ; F01D5/12 ; F01D9/04 ; F01D25/04 ; F04D29/32 ; F04D29/54

Abstract:
A gas turbine engine according to an aspect of the present disclosure includes, among other things, a propulsor section, a compressor section including a first compressor and a second compressor, and a turbine section including a first turbine and a second turbine. The first compressor includes a plurality of arrays of airfoils defining a plurality of compressor stages. A number of airfoils in each downstream array of the plurality of arrays is a factor (F) of a number of airfoils in a respective immediately upstream array of the plurality of arrays. The factor (F) is between 1.19 and 1.55 for each of the downstream arrays of the first compressor.
Public/Granted literature
- US20220341439A1 MODAL NOISE REDUCTION FOR GAS TURBINE ENGINE Public/Granted day:2022-10-27
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