| abstract |
A cryogenic tank comprising an inner wall (2) defining a storage space for fluid, an outer wall (3) and a void in the inter-wall space between the inner (2) and outer (3) walls, wherein the wall (3) exterior comprises a multilayer structure comprising, from the inside of the tank (1) towards the outside of the tank (1): a first waterproof layer (13) comprising a film or metallized fabric or an aluminum partition, a second layer (23) comprising a layer of laminated material based on carbon fibers and / or glass fibers, a third layer (33) comprising a thermal insulation layer of polyurethane foam type and / or balsa wood, a fourth layer (43) comprising a layer of laminated material based on carbon fibers and / or glass fibers, the first layer (13) having a thickness of between 0.1mm and 1mm, the second layer (23) having a thickness of com thickness taken between 1 and 10 mm, the third layer (33) having a thickness of between 10 and 80 mm, the fourth layer (43) having a thickness of between 1 and 10 mm. |