MISSILE UPPER STAGE Russian patent published in 2018 - IPC B64G1/00 

FIELD: aviation.

SUBSTANCE: missile upper stage comprises a cryogenic oxidant tank with main longitudinal partitions, additional near-bottom partitions and a sampling device, a propulsion engine and an additional autonomous propulsion plant for the orientation and starting system. The cryogenic oxidant tank is equipped with a damping horizontal annular partition placed with a clearance in relation to the shell of the cryogenic oxidant tank. The damping horizontal annular partition is made in the form of sectors, each of which is fixed to the corresponding main longitudinal partitions. Each sector has a flange towards the lower bottom of the cryogenic oxidant tank. The cryogenic oxidant tank is equipped with a near-bottom mesh partition placed between additional near-bottom partitions and the sampling device.

EFFECT: reliable launch of the propulsion engine of the upper stage.

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