Honeywell International Inc.

Don Weir

Yogendra Y Sheoran

Morris G Anderson

Robert G Hoover

Robert Romano

Peter Hall

Doug Hollingshead

Jeff M Mendoza

Dan Judd

A noise suppression apparatus includes a body portion including a plurality of nested channels, each channel of the plurality of nested channels including a first end opening and a second end opening, and a surface portion including each first end opening and each second end opening of each channel.

Noise suppression apparatus and methods of manufacturing the same

An inlet assembly for a turboprop engine system is provided. The inlet assembly includes an inlet plenum defining first inlet configured to receive air from the atmosphere; an expansion plenum coupled to the inlet plenum and configured to receive the air from the inlet plenum, the inlet plenum and the expansion plenum defining a flow path for the air with a bend of at least 90&#xb0;; and a second inlet coupled to the expansion plenum and configured to receive the air from the expansion plenum.

Turboprop engine systems with noise reducing inlet assemblies

A bleed air duct that preferably includes an inlet section configured to include a flush scoop and a louver. The louver is located and configured such that in the desired operating flow range of the duct, the fluid entering the flush scoop is disturbed and as a result creates a low pressure region downstream of the louver. The low pressure region substantially eliminates the generation of any pressure pulses and acoustic resonance also known as Helmholtz resonance.

Flush inlet scoop design for aircraft bleed air system

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Scottsdale, AZ, United States of America

Don Weir