The Brillance of Ingenuity

Constant Volume Rocket Motor for In-space Propulsion

CFDRC announces the award of US patent #7,631,487, “Constant Volume Combustion Bipropellant Pulsed Rocket Motor”. This invention utilizes a reciprocating thrust valve to provide precision controlled pulsed mode operation of a highly efficient bipropellant combustion process. “The potential of our Constant Volume Combustion Bipropellant Pulsed Rocket Motor to prolong the mission lifetime and functionality, without compromising weight, simplicity, cost, or reliability, in planetary ascent/descent vehicles or in-space satellite keeping operations, is of significant interest to our customers and partners,” stated Mr. Matthew Thomas, Director of Propulsion/Power at CFDRC. “We are actively pursuing both of these promising applications and are optimistic about the future of this unique adaptation to a conventional bipropellant rocket motor.”

About CFDRC:
CFDRC develops and commercializes state-of-the-art technologies (advanced analysis software, innovative designs, prototypes, and expert support services), and provides solutions for aerospace and defense, biomedical and life sciences and energy and materials technologies. CFDRC is located in Huntsville, Alabama, and has been serving federal agencies and global businesses since 1987.

Presently, CFDRC has over 45 patents (awarded or pending), and works with industry partners for their adaptation and applications. CFDRC is committed to commercialize its innovative technologies, and to support and transfer those technologies to DoD, NASA, etc and/or commercial markets. Contact: Dr. Vincent J. Harrand, Vice President, for Technology Commercialization (

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