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#Oil-Free Scroll Refrigeration

Oil-Free Scroll Refrigeration

Designed and Developed by Air Squared

Oil-Free Scroll Refrigeration
Overview

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

The technology provides an efficient and compact refrigeration compressor solution that does not require any lubrication, making it ideally suited for aerospace and space refrigeration applications where a zero-gravity or hypergravity environment make oil circulation challenging.

Range Technical Overview

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

Design Experience Range

Product Line Coverage

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Oil-Free Scroll Refreigeration
How It Works

Design and Construction

Oil-free scroll refrigeration designs are similar to other oil-free scroll designs, but use semi-hermetic sealing features to reduce leakage and isolate the greased bearings for minimal contact with the working fluid.

Scroll compressors used throughout the refrigeration industry typically use an Oldham ring to maintain the relative motion of the fixed and orbiting scroll. The configuration is inexpensive at scale, but requires lubrication during operation. Alternatively, oil-free scroll refrigeration compressors use an idler shaft arrangement that does not require lubrication to maintain the relative motion between the fixed and orbiting scrolls.

Air Squared MOTOR HOUSING STATOR CANISTER REAR COUNTERWEIGHT ROTOR CRANKSHAFT HOUSING FRONT COUNTERWEIGHT DRIVE ASSEMBLY ORBITING SCROLL IDLER SHAFTS FIXED SCROLL SCROLL PACK ASSEMBLY
Air Squared IDLER SHAFT OIL-FREE LUBRICATED