METHOD OF CONTROL OF MODE OF OPERATION OF LIQUID-PROPELLANT ROCKET ENGINE PLANT Russian patent published in 2002 - IPC

FIELD: rocketry. SUBSTANCE: proposed method consists in expulsion of propellant from tank by pressurization gas, measurement of pressure over route of delivery of propellant to engine and change of passage cross section of control member. Then, permissible magnitude of cavitational margin of pressure, consumption and temperature of propellant components are additionally measured; speed of turbo-pump unit shaft is measured as well; magnitude of cavitational margin of pressure is determined and noted and compared with permissible value and in case of reduction of cavitational margin of pressure, passage cross section of control unit is increased; if necessary, passage cross section is reduced till conditions ensuring required magnitude of cavitational margin have been obtained. EFFECT: enhanced energy characteristics due to reduction of pressure in rocket tanks; possibility of engine operation in case of derangement of supply system and temperature control system. 1 dwg