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

FIELD: aviation.

SUBSTANCE: missile upper stage comprises a cryogenic oxidant tank with additional near-bottom partitions, a sampling device, a rod of a cryogenic fuel level sensor, a propulsion engine. The cryogenic oxidant tank is provided with a drip reflector consisting of an inner truncated cone with a bottom in a small base. Its larger base is facing towards the upper bottom of the cryogenic oxidant tank, and an outer truncated cone, the larger base of which is facing towards the lower bottom of the cryogenic oxidant tank. The outer truncated cone is faired with the larger base of the inner truncated cone with a smaller base, holes uniformly distributed along the conjugation circumference are made in the conjugation of the inner truncated cone with the outer truncated cone. In the bottom of the inner truncated cone of the drip reflector, a central hole is made, through which the rod of the cryogenic fuel level sensor passes. The drip reflector is fixed to the rod of the cryogenic fuel level sensor above the additional near-bottom partitions.

EFFECT: ensuring a reliable launch of the propulsion engine of the upper stage and its subsequent operation.

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