Compact Pressure Regulating Subsystem (CPRS) for CubeSat Bimodal Propulsion

Completed TRL 4 (started at 3, targeting 4)

Description

The goal of this proposal is to design and prototype a Compact Pressure Regulating Subsystem (CPRS) for a CubeSat Bimodal Propulsion System. A pressure regulating subsystem is required if a high-pressure chemical thruster and very low-pressure electro-spray thrusters are to co-exist within the same system. The Massachusetts Institute of Technology (MIT) prototyped such a device for a SBIR effort, but the envisioned system is too large for practical use in a CubeSat. There are five work elements identified. A plan of action is identified for each. Valves – replacement with suitable, miniaturized in-line valves. Manifold – consolidate tubing and fittings into simplified, reduced part-count manifold(s). Assembly – alternative sealing methods (e.g. brazed or welded tube-manifold joint). Mounting – Planar interface design for enhanced fluid system integration. Control – integrated controller card to enhance electrical system integration.

Benefits

Realizing CubeSat Bimodal propulsion will transform CubeSat propulsion; enabling more versatile interplanetary science and exploration SmallSat missions. Specifically, bimodal propulsion is ideal for missions that require both high thrust and ultrafine pointing and stability. Pressure management is the key to unlocking bi-modal propulsion. The pressure management system developed through this CIF will enable a near-term CubeSat or SmallSat mission to demonstrate a green, bi-modal propulsion system in a space environment.

Details

Technology area	Propulsion Systems
Program	Center Innovation Fund: MSFC CIF (MSFC CIF)
Lead organization	Marshall Space Flight Center, Huntsville, AL
Start date	2020-10-01
End date	2021-09-30

Project contacts

Listed on TechPort itself — the most direct way to ask about this specific project.

Daniel P Cavender — daniel.p.cavender@nasa.gov

How to get involved

This is early/mid-stage (TRL 4) — the most realistic path in is NASA SBIR/STTR, which funds small businesses and research institutions to develop technology aligned with NASA's needs (equity-free, phased funding). Check whether a current SBIR/STTR solicitation topic overlaps with this project's technology area, or contact the project directly (above) to ask.

None of these are guaranteed paths for this specific project — TechPort itself doesn't have an "apply" button. Reaching out to the contact(s) above with a specific question is usually the fastest way to find out what's actually open.