Arbitrary Sized Scramjet Assemblies

Physical Sciences Inc. (PSI) has been awarded a research program from the U.S. Air Force, Wright-Patterson AFB, to develop an Additive Manufacturing (AM) process that allows duct segments to be jointed together into large-scale scramjet assemblies.

The Air Force requires large scale scramjet engines but current fabrication methods have long lead times, high part rejection rate, and great expense. PSI’s method makes it possible to combine cooled metal panels together into a leak-free whole. Different metals can be used, as can dissimilar materials such as ceramic and metal. This method makes use of PSI’s previously developed heat exchanger geometry, which resulted in substantial reductions to the weight of airborne heat exchangers and has the potential to reduce scramjet engine lead times by 50% and part production costs by 50% due to parts count reduction. It is an enabling technology for large scale scramjet engines.

PSI’s technology is applicable to scramjets, ramjets, rotating detonation engines and rockets, propulsion applications that have similar requirements to one another. It is also applicable to joints between other power and thermal components such as heat exchangers, hot structure, flow liners, and aeroshells. This research will have immediate applications in military and space vehicles and secondary markets in commercial aerospace vehicles and engines.

For more information, contact:

Dr. Sean Torrez
Group Leader, Deployable Technologies
Physical Sciences Inc.
Telephone: (978) 689-0003