A Novel Pulse Rocket Engine for Space Propulsion

Li-zi, Qin; Liang, Shuqiang; Lin, Zhifang; Yi, Duan; Yu, Li

doi:10.2514/6.2009-5487

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Pulses automatically generated by the thruster produce the thrust. More recently, Qin et al 11 developed lumped parameter models of the extruding room and the combustion chamber and one dimensional unsteady flow model of the nozzle in order to understand the operating characteristics of a novel rocket engine based on the same concept proposed by Koppel & Gallier. 10 Talley & Coy 12,13 explored theoretically the constant volume limit of pulsed propulsion, where the combustion chamber was approximated as being time-varying but spatially uniform, while the nozzle flow was approximated as being one dimensional but quasi-steady.…”

Section: Introductionmentioning

confidence: 99%

Pulsed Chemical Rocket with Green High Performance Propellants

Pasini

Torre

Pace

et al. 2013

49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference

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PulCheR (Pulsed Chemical Rocket with Green High Performance Propellants) is a newpropulsion concept in which the propellants are fed in the combustion chamber at low pressure and the thrust is generated by means of high frequency pulses, reproducing the defence mechanism of a notable insect: the bombardier beetle. The radical innovation introduced by PulCheR is the elimination of any external pressurizing system even if the thruster works at high pressure inside the combustion chamber. At each pulse, pressurization of the combustion chamber gases takes place due to the decomposition or combustion reaction, and the final pressure is much higher than the one at which the propellants are stored. The weight of the feeding system is significantly reduced because the propellants are fed at low pressure, and there is no need for turbopumps, high pressure propellant tanks or gas vessels. The feed pressure becomes independent on the chamber pressure and the performance degradation typical of the blow down mode in monopropellant thrusters can be avoided. The PulCheR concept is able to substitute many currently used propulsion systems for accessing space in both mono and bipropellant configurations. The preliminary assessment of this new propulsion concept has been investigated using green propellants with potential similar performance to the current stateof-the-art for monopropellant and bipropellant thrusters.

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Section: Introductionmentioning

confidence: 99%