Small Business Innovation Research/Small Business Tech Transfer
A LOX-Cooled, Pump-Fed Rocket Engine for Sample Return Applications
Project Description
To-date, the realization of small-scale, high-performance propulsion systems for challenging in-space maneuvers requiring high delta-V and acceleration over a short period of time (i.e. sample return), has largely been limited by the lack of regeneratively-cooled thrust chamber assemblies and turbopumps in the 100-1,000lbf thrust class. Ventions proposes to overcome this limitation by developing a 500lbf, LOX-cooled, pump-fed engine for in-space propulsion applications. The Phase I effort will focus on: 1. Overall design of a 500lbf engine; 2. Detailed design and fabrication of a sub-scale, LOX-cooled main combustion chamber; and 3. Experimental hot-fire testing of a LOX / IPA combustion chamber assembly to evaluate cooling channel performance and LOX quality at the injector inlet.
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Anticipated Benefits
The propulsion system proposed herein represents a low-cost technology that can be integrated into a number of spacecraft designs with the ultimate goal of providing high-performance liquid bipropellant rocket engines for challenging in-space missions. The use of LOX for regenerative cooling of the main combustion chamber enables propellant combinations, engine cycles and / or operating points not currently available for in-space missions. The availability of on-board pressurization for higher chamber pressure operation (without the excessive weight penalty of propellant storage tanks), can further result in a significant increase in the capability for missions requiring large Delta-V over a short period (such as sample return, powered landings and ascent, orbit insertion and change, etc.), thereby easing implementation of space borne operations through a combination of reduced size, weight, improved reliability and lower cost.
Non-NASA commercial applications include: 1. Upper stage propulsion. 2. Apogee kick motors for small- and medium-scale spacecraft. 3. Standalone non-aerospace applications of the pump technology in industrial and desalination settings for water and cryogenics, and as an alternative to other high-pressure liquid pumps. More »
Non-NASA commercial applications include: 1. Upper stage propulsion. 2. Apogee kick motors for small- and medium-scale spacecraft. 3. Standalone non-aerospace applications of the pump technology in industrial and desalination settings for water and cryogenics, and as an alternative to other high-pressure liquid pumps. More »
Primary U.S. Work Locations and Key Partners
| Organizations Performing Work | Role | Type | Location |
|---|---|---|---|
| Astra Space, Inc | Lead Organization | Industry | Louisville, Colorado |
| Jet Propulsion Laboratory (JPL) | Supporting Organization | FFRDC/UARC | Pasadena, California |
Primary U.S. Work Locations
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California
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