METHOD FOR STORAGE OF LIQUID CRYOGENIC FUEL COMPONENT IN OXIDIZER TANK OF SPACE OBJECT Russian patent published in 2024 - IPC B64G1/50 

FIELD: rocket and space engineering.

SUBSTANCE: invention relates to aerospace engineering, particularly, to storage of liquid cryogenic fuel component in oxidizer tank of space object. For storage of liquid cryogenic component of fuel in tank of oxidizer there installed is heat exchanger and gaseous helium in cylinders of high pressure immersed into liquid cryogenic component of fuel. Circulation circuit with cooler and heat exchanger is filled with gaseous helium. Temperature control of oxidizer tank with liquid cryogenic fuel component is performed by forced circulation of gaseous helium in its circulation circuit. Before filling the circuit with gaseous helium, the pressure of gaseous helium is reduced to the required value; forced circulation of helium is carried out in the direction from the cooler to the inlet of the heat exchanger of the oxidizer tank of the gaseous helium circulation circuit. Temperature control of oxidizer tank with liquid cryogenic fuel component is performed during space object flight when maximum operating temperature of liquid cryogenic fuel component is reached, which is determined by cavitation characteristics of hydraulic circuit of liquid-propellant engine of space object. When the temperature of gaseous helium at the outlet of the heat exchanger of the oxidizer tank is below the temperature of the liquid cryogenic component of the fuel in the oxidizer tank, temperature control is terminated.

EFFECT: increased storage time of liquid cryogenic fuel component in oxidizer tank and provision of liquid oxygen temperature range required for cruise engine.

1 cl, 1 dwg