FIELD: liquid-propellant rocket engines. SUBSTANCE: zone of combustion is created at propellant lead when one component is fed to combustion chamber by shutting off several injectors temporarily by one of propellant component. To this end, pyropots are fitted in injectors which are burnt out in course of launch, or easily fusible elements are fitted in injector including those made of Wood's alloy or indium alloy; neutral gas may be also fed to injectors. EFFECT: enhanced efficiency. 6 cl, 4 dwg
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