SBIR/STTR Award attributes
Transfer of gaseous propellant in space is a critical technology for space exploration and for extending the useful life of satellites. A key component needed for in-space refueling is a compressor that can efficiently move gas from a resupply vehicle to the propellant storage vessel on board the receiver vehicle. High efficiency requires a very high pressure ratio, and operation on orbit requires that the compressor be compact, lightweight, and space worthy. We propose to develop a compact, high-pressure ratio compressor that meets these requirements. Our technology can efficiently transfer gas from a low-pressure supply vessel to a high-pressure receiver vessel using a highly reliable compression mechanism. In Phase I, we proved feasibility through demonstration testing of key components and materials, analysis and assessment of key design trade-offs, detailed conceptual design, and predictions of performance. In Phase II, we will build a prototype compressor and demonstrate operation under conditions that simulate propellant transfer in space.
