OXYGEN-HYDROGEN LIQUID ROCKET ENGINE Russian patent published in 1997 - IPC

FIELD: rocket engineering. SUBSTANCE: engine has combustion chamber, gas generator, turbopump unit, booster fuel pump, and booster oxygen pump with a hydraulic turbine and supplying pipe line of the hydraulic turbine. The turbopump unit comprises three-stage centrifugal fuel pump, major centrifugal oxygen pump, additional centrifugal oxygen pump, and two-stage turbine. The major pump of the oxygen has double-sided inlet. The inlet of the additional pump is connected with the inlet of the major pump through by-passes in the housings of the pump. The booster pump is actuated by the hydraulic turbine whose inlet is connected with the discharging pipe line of the additional oxygen pump through the supplying pipe line. EFFECT: enhanced efficiency. 1 dwg