Novel Orbital Compressor for Next Generation Cryocoolers

"Refrigeration needs for space-based applications require cryocooling systems, which are compact, light-weight, energy efficient, and reliable. Overall system performance is highly dependent on the characteristics and performance of a key component, thecompressor. The compressor and its mechanical power source are generally the most mechanically complex components of the refrigeration system. State-of-the-art gas compressors offer excellent performance for terrestrial applications where maintenance isnot a critical issue but can lack the performance characteristics required for long-term, maintenance-free space applications.Fluid Flow Technologies, L.L.C. proposes to develop a compressor, which is completely novel in its design and operation, and demonstrate performance characteristics, which will meet the rigorous requirements for space-based cyrocooling applications. Thisdesign is based on a very simple mechanism, resulting in a compressor that is light-weight, compact, hermetically sealed, and extremely reliable. Another key feature, which is a benefit for space applications, is a design that is mechanically balanced,possessing no net angular or linear momentum, resulting in a quiet and vibration-free operation. The anticipated results from the Phase 1 work plan are the demonstration of the mechanical operation of a small-scale compressor prototype. These results will provide the basis for a full-scale design, which meets the