The semi-hermetic P19H038A-BLDC-SH scroll compressor has no dynamic seals and is suitable for operation with CO₂ and other gases.

The semi-hermetic P19H038A-BLDC-SH is adopted from a non-sealed scroll compressor of similar design that is used onboard commercial airliners. The unit was modified to compress CO₂ with minimal leakage and contamination of the working fluid and is part of an SBIR Phase I project awarded to Air Squared to develop scroll solutions that support ISRU processes by collecting, separating, pressurizing or processing gasses from the Mars atmosphere. The proprietary semi-hermetic configuration protects the compressor from ingress of debris and has allowed Air Squared to extensively test a number of performance metrics using CO₂.

The P19H038A-BLDC-SH uses a proprietary magnetic coupling configuration. The configuration completely isolates the motor from the compression processes and is typically used when electrical components cannot contact with the working fluid.

Design Specifications

• Max. Discharge Pressure: 5.17 bar_g
• Max. Volume Flow: 430 lpm_v
• Nominal Shaft Power: 3.17 kW
• Nominal Sound Level: 65 dB(A)
• Ambient Temp. Range: -20 ºC – 40 ºC
• Net Weight: 28 lb
• Dimmensions: 23 cm x 24 cm x 34 cm