Invention Grant
- Patent Title: Landing gear door liners for airframe noise reduction
- Patent Title (中): 落地式齿轮减速门机
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Application No.: US13417349Application Date: 2012-03-12
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Publication No.: US08708272B1Publication Date: 2014-04-29
- Inventor: Michael G. Jones , Brian M. Howerton , Thomas Van De Ven
- Applicant: Michael G. Jones , Brian M. Howerton , Thomas Van De Ven
- Applicant Address: US DC Washington
- Assignee: The United States of America as represented by the Administrator of National Aeronautics and Space Administration
- Current Assignee: The United States of America as represented by the Administrator of National Aeronautics and Space Administration
- Current Assignee Address: US DC Washington
- Agent Andrea Z. Warmbier
- Main IPC: B64C1/40
- IPC: B64C1/40
Abstract:
A landing gear door for retractable landing gear of aircraft includes an acoustic liner. The acoustic liner includes one or more internal cavities or chambers having one or more openings that inhibit the generation of sound at the surface and/or absorb sound generated during operation of the aircraft. The landing gear door may include a plurality of internal chambers having different geometries to thereby absorb broadband noise.
Public/Granted literature
- US2560310A Take-up device Public/Granted day:1951-07-10
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