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Noise suppressorSuppressor reduces noise propagated through ducts. It provides high attenuation in given duct length. Entire device forms acoustic trap which utilizes reflective elements on ends to direct sound energy into sound-dissipating element in center. Device achieves large suppression by utilizing interactive effects of different suppression devices.
Document ID
19740000261
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Zorumski, W. E.
Date Acquired
August 7, 2013
Publication Date
January 1, 1975
Subject Category
Physical Sciences
Report/Patent Number
LAR-11141
Report Number: LAR-11141
Accession Number
74B10261
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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