Invention Grant
- Patent Title: Passive transpirational flow acoustically lined guide vane
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Application No.: US17119510Application Date: 2020-12-11
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Publication No.: US11512608B2Publication Date: 2022-11-29
- Inventor: Nigel David Sawyers-Abbott , Anthony R. Bifulco
- 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: Kinney & Lange, P.A.
- Main IPC: F02C7/24
- IPC: F02C7/24 ; F01D25/04 ; F01D9/04 ; F04D29/32 ; F01D5/18 ; F04D29/66 ; F02C7/045 ; F01D5/14 ; F04D29/68

Abstract:
A passive transpirational flow acoustic liner assembly for a gas turbine engine includes a guide vane assembly and a conduit configured to deliver airflow received from the guide vane. The guide vane assembly includes an airfoil having a transpirational flow acoustic liner. The acoustic liner includes a face sheet defining a portion of an outer surface of the airfoil and having a plurality of first apertures, a segmented member coupled to the face sheet and having a plurality of chambers in fluid communication with the outer surface via the plurality of first apertures, a backing sheet having a plurality of apertures and being coupled to the segmented member such that the segmented member is positioned between the face sheet and the backing sheet, and a plenum coupled to the backing sheet opposite the segmented member and fluidly connected to the conduit.
Information query
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