TWO-MODE SOLID-PROPELLANT ROCKET ENGINE Russian patent published in 2002 - IPC

FIELD: solid- propellant rocket engines. SUBSTANCE: proposed engine has body with combustion chamber of solid propellant charge for start mode and combustion chamber with solid propellant charge for cruise mode inside its body. Partition mounted between these combustion chambers has central hole and at least one ignition hole. Nozzle unit includes supersonic nozzles for start mode and at least one supersonic nozzle for cruise mode which is connected to combustion chamber of cruise mode through pipe line and central hole in partition. Each ignition hole of partition mounted between combustion chambers is provided with metal plug containing initiating compound on side of combustion chamber of cruise mode. Plug of rocket engine may be made in form of pin. EFFECT: enhanced reliability and efficiency of rocket engine. 2 cl, 5 dwg