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The design and development of an oil-free compressor for Spacelab Refrigerator/FreezerDesign features and test results of an oil-free compressor developed for Spacelab Mission-4 Refrigerator/Freezer are detailed. The compressor has four identical pistons activated by a common eccentric shaft, operated by a brushless dc motor at 1300 rpm. The stroke of each piston is 0.28 cm, with the piston ends connected to the shaft by means of sealed needle bearings, eliminating the ned for oil. The mass flow rates produced by the compressor are by over 100 percent higher compared to the original Amfridge unit. Test results show that the compressor can meet the Spacelab refrigerator/freezer requirements.
Document ID
19850051597
Document Type
Conference Paper
Authors
Hye, A. (GE Management and Technical Services Co. Houston, TX, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1984
Subject Category
SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number
SAE PAPER 840935
Funding Number(s)
CONTRACT_GRANT: NAS9-15850
Distribution Limits
Public
Copyright
Other