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Oil-Free Scroll Refrigeration Compressors for Aerospace
Scroll Technology for Environmental Control Systems

Oil-free scroll refrigeration compressors from Air Squared deliver highly efficient and reliable performance without any lubrication, reducing the size and weight of environmental control systems and allowing for operation in hypergravity environments.

Environmental control systems (ECS) are responsible for a number of critical functions on board aircraft and helicopters, including providing adequate cabin temperature and pressure for passengers and crew. For next-generation commercial and military systems using vapor-compression refrigeration for thermal management, Air Squared has the experience and capability to support unique ECS applications with system-level design and custom scroll refrigeration compressors.

  • Oil-free scroll refrigeration technology delivers efficient and high-pressure performance without lubrication. The technology is ideally suited for aerospace vapor-compression refrigeration systems where a hypergravity environment makes oil circulation challenging.
  • Using an Oldham ring or idler shaft arrangement, Air Squared can deliver custom lubricated scroll refrigeration compressors for ECS applications where size and weight are critical.
  • With in-house testing capability specifically for refrigeration applications, Air Squared offers various system-level services, including design, prototyping, testing, and data collection.
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Environmental Control System
Experience Matters

Air Squared has developed scroll refrigeration compressors for several airborne and space-bound environmental control systems.

Show Ecs

Air Squared is developing oil-free scroll refrigeration compressors to support advanced environmental control systems in aerospace and military applications.

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Show Space Refrigerator

Following the development of an oil-free scroll refrigeration compressor that is capable of operating in zero-gravity, Air Squared has developed and flight-tested a Zero-Gravity Vapor-Compression Refrigerator (ZVCR) for space-bound food storage. The project is a collaboration between Air Squared, Purdue University, and Whirlpool Corporation.

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Environmental Control Systems
Technology Innovation

#Oil-Free Scroll Refrigeration

Oil-free scroll refrigeration technology makes the numerous advantages of oil-free scroll compressors available for vapor-compression refrigeration applications.

Cooling Capacity60 W to 11 kW
Volumetric EfficiencyUp to 85%
Fluid CompatibilityHFC Refrigerant

Design Experience Range

Product Line Coverage

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Environmental Control System
Custom Design and Development

With an ever-expanding range of design capabilities, Air Squared has unique solutions for unique environmental control systems.

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Oil-Free Design

Oil-free scroll refrigeration technology offers an alternative to traditional lubricated refrigeration compressors.

Gases Other Than Air

With several patented semi-hermetic configurations, scroll compressors can be used for far more than moving air.


When minimal power consumption is critical, leverage the inherent efficiency advantage of scroll technology.

Compact Footprint

Unique scroll arrangements allow scroll designs to fit in small envelopes without sacrificing performance.

Envoronmental Control System
News and Projects Spotlight

#Environmental Control System

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