FIELD: rocketry; liquid-propellant rocket engines working on three- component propellant. SUBSTANCE: mounted on base two- component engine is three-component gas generator 7 with main 9 feeding second fuel and regulator 10. Required consumption of the second fuel in the course of launch is ensured by setting return main 12 with metering devices 14. To avoid freezing of the second fuel, inert has blow main 15 is laid. To shift engine for two-component operation, second fuel supply main is connected with first fuel main by means of main 18. To obtain required ratio of components, mains with start and cut-off valves 22 for draining fuel into atmosphere and start and cut-off valve 23 to gas line of turbine are fitted after first fuel pump. EFFECT: enhanced reliability. 1 dwg
