DIRECTED EVOLUTION OF PROTEIN IN MAMMALIAN CELLS

Not Available The Army has a need to improve the propulsion performance and flexibility of missile systems for tactical applications. A Constant Pressure Throttling (CPT) engine is a concept with the potential to provide the on-demand thrust schedules required of smart propulsion without the performance losses that ordinarily accompany throttling. By incorporating a pintle controlled nozzle into a bipropellant combustion chamber with an array of splash plat injector elements that promote propellant atomization and mixing, combustion pressure can be maintained at high performance levels while simultaneously throttling the mass flow rate through the injector. Stone Engineering Company will propose and investigate alternative design implementations of this concept in the context of the Army's Future Missile Technology Integration (FMTI) application, quantify the resulting propulsion performance with Computational Fluid Dynamics (CFD) analysis, and explore resulting system performance with parametric propulsion design studies and trajectory simulations. If the concept proves to have the expected merit in this study, a Phase II effort consisting of full-scale hardware design and demonstration testing would be warranted. If successful, the CPT engine concept could move the Army a step closer to realizing the enormous Operating and Support cost reduction of a multi-purpose tactical missile weapon system. BENEFITS: The development of a Constant Pressure Throttling engine will have an impo