Liner collapse mitigation for class IV conformable pressure vessels

Class IV pressure vessels have improved permeate gas management. The pressure vessel includes an inner polymeric liner, a gas permeable layer disposed on the liner, and an outer composite shell structure disposed on the gas permeable layer. The gas permeable layer is gas permeable, liquid impermeable, and provides a flow path for gas collected by the gas permeable layer that permeates the liner wall. The outer composite shell is formed of one or more layers of fibers of a first fiber type and a resin. Gas permeating from the interior space of the liner is received by the gas permeable layer and directed to a predetermined outlet location on the pressure vessel. IV类压力容器具有改进的渗透气体管理。该压力容器包括内聚合物内衬、布置在内衬上的透气层、以及布置在透气层上的外复合壳体结构。透气层是可透气的、不可渗透液体的，并且为由透气层收集的透过内衬壁的气体提供流动通路。外复合壳体由一层或更多层的第一纤维类型的纤维和树脂形成。从内衬的内部空间渗透的气体由透气层接收并且导向在压力容器上的预定的出口位置。