| 摘要 |
A pressure vessel in accordance with an embodiment of the present invention includes a nozzle boss including a neck unit with a hollow portion and a flange unit extended from the neck unit to the outside; a liner which is connected to the nozzle boss and provides a fluid charging space inside; and a sealing unit which is inserted into the lower end of the neck unit to prevent a fluid from being leaked through a boundary of the nozzle boss and the linear by blocking direct contact of the fluid on the boundary. |
