- 专利标题: PASSIVE TRANSPIRATIONAL FLOW ACOUSTICALLY LINED GUIDE VANE
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申请号: EP21213880.4申请日: 2021-12-10
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公开(公告)号: EP4012167A1公开(公告)日: 2022-06-15
- 发明人: SAWYERS-ABBOTT, Nigel David , BIFULCO, Anthony R.
- 申请人: Raytheon Technologies Corporation
- 申请人地址: US Farmington, CT 06032 10 Farm Springs Road
- 代理机构: Dehns
- 优先权: US202017119510 20201211
- 主分类号: F02C7/045
- IPC分类号: F02C7/045 ; F01D9/04 ; F02K1/82
摘要:
A passive transpirational flow acoustic liner assembly (61;161) for a gas turbine engine (20) includes a guide vane (64;164) assembly and a conduit (80;180) configured to deliver airflow received from the guide vane (64;164). The guide vane (64;164) assembly includes an airfoil having a transpirational flow acoustic liner (100;200). The acoustic liner (100;200) includes a face sheet (106) defining a portion of an outer surface of the airfoil and having a plurality of first apertures (116), a segmented member (108) coupled to the face sheet (106) and having a plurality of chambers (110) in fluid communication with the outer surface via the plurality of first apertures (116), a backing sheet (112) having a plurality of apertures (118) and being coupled to the segmented member (108) such that the segmented member (108) is positioned between the face sheet (106) and the backing sheet (112), and a plenum (114) coupled to the backing sheet (112) opposite the segmented member (108) and fluidly connected to the conduit (80;180).
公开/授权文献
- EP4012167B1 PASSIVE TRANSPIRATIONAL FLOW ACOUSTICALLY LINED GUIDE VANE 公开/授权日:2024-08-28
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