Ducts comprising exoskeleton and sound-absorbing structures and vehicles using such ducts

Desribed herein are noise attenuating ducts (100) and vehicles (190) using these ducts for environmental control systems. A duct (100) comprises an exoskeleton structure (110) and a sound-absorbing structure (120), disposed within and conforming to the exoskeleton structure (110). The exoskeleton st...

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Bibliographische Detailangaben
Hauptverfasser:	Vandyke, Bryce A, Han, Xin, Hastings, Dale, Gmerek, Mark M, Maben, Douglas D
Format:	Patent
Sprache:	eng
Schlagworte:	AEROPLANES AIRCRAFT ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT AVIATION BLASTING COSMONAUTICS ENGINEERING ELEMENTS AND UNITS EQUIPMENT FOR FITTING IN OR TO AIRCRAFT FLYING SUITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HELICOPTERS JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PARACHUTES PERFORMING OPERATIONS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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