ALLIED INTERNATIONAL CORPORATION, 7 HILL STREET, BEDFORD HILLS, NY 10507, USA  914 241 6900,

Allied International

ACOUSTICS

The Acoustic Division offers a complete line of acoustic products and services to help our customers solve the most demanding noise problems.Allied International Corporation, specializing in acoustic attenuation, has been serving customers in the United States, Europe, and the Far East for over 50 years.Our proprietary metal fiber based acoustic media is particularly suited for high frequency noises associated with blade passing frequencies.We have modeling software which enables us to predict insertion lost using customized silencer design.


AEROSPACE APPLICATIONS

Engine Exhausts

APU Inlets

APU Exhausts

ECU Ducts

Bleed Air Exhaust

Cooling Systems

Diffusers

Ram Air Systems

Fans

Ducts

Air Compressors

Mufflers

In-line Silencers


Allied International Also Performs These Services

• Measurement and analysis of noise source

• Isolation and identification of sources

• Treatment recommendations based on requirements of noise spectra,operating environment, weight, material costs, etc.

• Design and production of prototypes

• Production of completed assemblies and subassemblies

• Installation of materials

• Testing and consulting


ALLIED INTERNATIONAL ADVANTAGES


We specialize in difficult applications where heat, corrosion, size, and weight are primary concerns.

• Complete noise control solution including evaluation, design, testing, material supply, prototypes, and production

• Extensive aerospace, industrial, marine, and automotive noise control experience

• Passive and active noise control products

• "Off the shelf" and custom designed products ensuring the best value

• Metal fiber acoustic duct design using proprietary computer software

• Rapid design and prototype development

• Custom designed metal fiber acoustic materials for the most demanding applications

• Expertise in welding metal fiber acoustic


fiber metal acoustic elements fabricated by Allied International  scale model of proposed APU exhaust liner and splitter for the A380 APU

ACOUSTICS TYPICAL ECS APPLICATION


schematic of a noisy  ECS system ion an actual corporate jet Schematic of  corporate jet ECS after installation of Allied silencers which reduced noise by 10 dBA High pressure ECS silencer low pressure ECS silencer

HIGH PRESSURE CABIN SILENCER. SIZE178x102x38mm.


LOW PRESSURE SILENCER, TWO SILENCERS IN ONE DUE TO LIMITED SPACE .


Before

Cabin very noisy

After

Cabin quiet