MULTISTAGE ROCKET AND METHOD FOR SEPARATING WASTE PARTS Russian patent published in 2021 - IPC F42B15/12 B64G1/00 

FIELD: rocketry.

SUBSTANCE: invention relates to a multistage rocket and a method for separating spent parts. The creation of multistage missiles with a minimum mass of a light class and a relatively increased value of the payload is an important task. The multistage rocket contains the main booster block, which is represented by a body and a nose fairing. After the nose fairing, the payload compartment, the main fuel tanks, the turbopump assemblies of the liquid propellant rocket engines of the main upper stage, connected with the main fuel tanks, are sequentially located relative to the longitudinal axis. The rocket also contains additional fuel compartments. These compartments are made with the possibility of their attachment by means of controllable detachment units on the main fuel tanks and separation from the main upper stage, and are equipped with a pressurization system and lines. These lines connect additional fuel compartments with the main fuel tanks and are made in the form of pipelines with start-off valves and transfer pumps with drives installed in series on them. The main fuel tanks are connected to additional fuel compartments with the possibility of replacing propellants in the main fuel tanks, as they are depleted, with propellants from additional fuel compartments when the liquid propellant rocket engine is operating. With the complete depletion of fuel components from additional fuel compartments, their separation and separation of stages from the rocket, it is possible not to disturb the regime and the continuity of operation of the liquid-propellant rocket engine due to the depletion of fuel components from the main fuel tank.

EFFECT: ensured continuity of the operating parameters of the multifunctional liquid-propellant rocket engine at all stages of the multistage rocket operation, both as part of the first stage and as part of subsequent stages.

6 cl, 8 dwg