ADAPTERLESS CLOSURE ASSEMBLY FOR COMPOSITE PRESSURE VESSELS

摘要

The present disclosure provides pressurized-gas storage assemblies and methods of fabricating such assemblies. A pressurized gas storage assembly of the disclosure may have a liner with an end portion with a planar surface with an access opening on the planar surface, which has a raised circular ring extending from the planar surface and surrounding the access opening. The assembly may also include a polar boss having a bottom flat surface with a circular groove therein, which is adapted to receive the raised circular ring of the liner when the polar boss and liner are screwed together. An outer shell may be provided around the entirety of the liner and with an aperture-defining edge that receives the polar boss.