CRYOGENIC TANK AND SPACE LAUNCHER INCLUDING SUCH A TANK

摘要

The invention relates to a cryogenic tank for a space launcher, including a partition (2) defining upper (VS) and lower (VI) spaces for the fluid in the tank, said upper and lower spaces communicating via at least one free central opening (3) formed in the partition so as to enable a flow of the liquid from the upper space to the lower space by gravity and via the central opening(s) and so as to prevent the backflow of fluid from the lower space to the upper space via said central opening(s) due to acceleration forces, the tank further including at least one vent (5) separate from the central opening(s) and ensuring the fluid communication between the upper and lower spaces, the vent being shaped so as to facilitate the transit of vapour from the lower space to the upper space and for preventing a liquid backflow from the lower space to the upper space.