CARRIER ROCKET REUSABLE STAGE Russian patent published in 2025 - IPC B64G1/14 F02K9/42 

FIELD: cosmonautics.

SUBSTANCE: invention relates to aerospace engineering, particularly, to carrier rocket reusable stages. Carrier rocket reusable stage comprises a conical oxidizer tank, a tore fuel tank and an engine compartment. In the inner cavity of the toroidal tank there is an instrument compartment and a payload compartment, inside which there is a platform connected to a drive ensuring its movement with the payload installed on it along the longitudinal axis of the stage. Propulsion system consists of cruise multi-chamber liquid-propellant engine (LPE) and four-chamber steering liquid-propellant engine. Cruise liquid-propellant engine includes a central body made in the form of a truncated cone and formed by four movable flaps. Chambers of the cruise liquid-propellant engine are rigidly fixed on the end of the engine compartment and are uniformly located around the central body and at an angle to the longitudinal axis of the stage. Steering liquid-propellant engine provides thrust vector control and stage landing. Chambers of the steering liquid-propellant engine are uniformly arranged along the circumference and can turn in one plane, and landing supports are installed on the outer cylindrical surface of the engine compartment.

EFFECT: improved mass-dimensional characteristics of carrier rocket reusable stage.

1 cl, 7 dwg