LIQUID ROCKET ENGINE MADE ACCORDING TO THE CONFIGURATION WITHOUT AFTERBURNING IN THE CHAMBER Russian patent published in 2022 - IPC F02K9/48 F02K9/88 

FIELD: rocket technology.

SUBSTANCE: invention relates to rocket technology and can be used in structures of liquid rocket engines made according to the configuration without afterburning in the chamber. The result is provided by an increase in the specific impulse of the nozzle of the exhaust system of the TPA (turbopump assembly) due to the afterburning of the working body of the TPA turbine - gas with an excess of fuel by an oxidiser supplied to the gas duct of the exhaust system with an exhaust nozzle. For this purpose, nozzle valves 5 are integrated into the gas duct 4, communicating with the oxidiser pressure main 6, the pipeline 7; the gas duct 4 and the nozzle 8 are made cooled, wherefor the cooling path 10 is communicating with the fuel pressure line at the input and output of the cooling path of the chamber 1 via pipelines 9 including a throttle washer 11.

EFFECT: invention is aimed at reducing the losses in the specific impulse of the engine associated with the drive of the TPA.

1 cl, 1 dwg