Pressure vessels, bosses, and how to make bosses

摘要

The pressure vessel (10) comprises a shell (18), a liner (20) and a boss (16). A liner (20) is positioned within the shell (18) to define an internal environment (17). The boss (16) is located at a first boundary (60) between the shell (18) and the liner (20). The boss (16) comprises a cavity (27) and a discharge structure (28) located within the cavity (27). The cavity (27) is located at the second boundary (62) between the liner (20) and the boss (16), and the cavity (27) is the interior of the boss (16) in communication with the internal environment (17) Located on the surface (31). A gas release path (54) is defined from the first boundary (60) through the release structure (28) and into the internal environment (17) of the pressure vessel (10). The present disclosure also describes the boss (16) for the pressure vessel (10) and the method of manufacturing the boss (16). The boss (16) comprises a port (26), a flange (24), a cavity (27) and a gas release structure (28). The cavity (27) and the gas release structure (28) are located inside (37) of the flange (24). [Selected figure] Figure 4A