Tank with a gas extraction device for storing cryogenic liquid or fuel for spacecraft

A tank arrangement for a spacecraft comprising:

• a tank enclosing a tank interior space adapted to contain therein a liquid for operation of the spacecraft and a pressurized driving gas adapted to drive the liquid out of said tank;
• and
• a gas supply and extraction device that is arranged in said tank interior space and is adapted to separate the gas from the liquid and extract the gas out of said tank, and that comprises:
• a housing shell enclosing therein an interior reservoir space,
• a plurality of passage bodies that are arranged on a perimeter of said housing shell and provide respective open passages communicating through said passage bodies from said tank interior space to said interior reservoir space, wherein said open passages are enlarged with an increasing cross-sectional area toward said tank interior space,
• a respective plurality of plates respectively arranged in each respective one of said passage bodies, wherein said plates protrude into said open passage of said respective passage body alternately in succession from opposite sides of an inner surface of said respective passage body,
• a plurality of elongated plates arranged on an inner surface of said housing shell and extending longitudinally parallel to a longitudinal axis of said housing shell,
• a gas extraction conduit leading and communicating from said interior reservoir space out of said device and out of said tank,
• plural baffle plates, with a respective one of said baffle plates respectively arranged in front of a respective open end of each respective one of said passage bodies in said tank interior space, and with a respective gap formed between said respective baffle plate and said open end of said respective passage body, and
• double screen arrangements respectively interposed in said open passages between said interior reservoir space and said plates in said passage bodies.