A report proposes the development of modular propulsion clusters (MPCs) — small, self-contained propulsion systems that would be standardized, mass-produced, and readily installed on a variety of miniature future spacecraft. The MPCs would be inexpensive, "turn-key" alternatives to expensive conventional propulsion systems that are designed and built integrally with other spacecraft systems and structures. Each MPC would contain its own propellant tank, isolation valve, gas plenum, and valve/nozzle thruster assemblies. Each MPC would be delivered fully loaded; installation on a spacecraft would involve only mounting and electrical connections. The propellant would be a liquid that, by electrical actuation of valves, would be metered into the plenum as needed to vaporize and generate thrust. An important advantage of using a vaporizing propellant liquid (as opposed to a propellant gas) is that stopping a liquid leak is orders of magnitude easier than is preventing a gas leak.
This work was done by Barry Nakazono of Caltech for NASA's Jet Propulsion Laboratory. To obtain a copy of the report, "Modular Propulsion Cluster," access the Technical Support Package (TSP) free on-line at www.nasatech.com/tsp under the Machinery/Automation category.
NPO-20783
This Brief includes a Technical Support Package (TSP).
Modular Prolpulsion Clusters
(reference NPO-20783) is currently available for download from the TSP library.
Don't have an account?
Overview
The document presents a report on Modular Propulsion Clusters (MPCs), a proposed innovation in spacecraft propulsion systems developed by Barry Nakazono at NASA's Jet Propulsion Laboratory (JPL). MPCs are designed to be small, self-contained propulsion units that can be standardized and mass-produced, making them suitable for a variety of miniature spacecraft. This approach aims to provide a cost-effective and efficient alternative to traditional propulsion systems, which are typically expensive and intricately designed to integrate with other spacecraft components.
Each MPC is equipped with its own propellant tank, isolation valve, gas plenum, and valve/nozzle thruster assemblies. The design allows for easy installation on spacecraft, requiring only mounting and electrical connections. The propellant used in these clusters is a liquid that can be vaporized to generate thrust. This method of propulsion offers significant advantages, particularly in terms of safety and maintenance. For instance, managing liquid leaks is considerably easier than preventing gas leaks, which enhances the reliability of the propulsion system.
The report emphasizes the potential of MPCs to revolutionize the way propulsion systems are integrated into spacecraft, making them more accessible and less costly for various space missions. By providing a "turn-key" solution, MPCs could streamline the development process for future spacecraft, allowing for quicker deployment and reduced costs.
The document is part of NASA's ongoing efforts to innovate and improve space technology, showcasing the collaboration between JPL and the National Aeronautics and Space Administration. It also includes a disclaimer stating that references to specific commercial products or manufacturers do not imply endorsement by the U.S. Government or JPL.
Overall, the report highlights the promising future of modular propulsion technology in space exploration, emphasizing its potential to enhance the capabilities and affordability of future missions. The development of MPCs represents a significant step forward in the quest for more efficient and versatile propulsion solutions in the aerospace industry.
