Patent ID: 9476545
Filing Date: 2016-10-25
CPC Classification: B65D,F16J,F17C

Claim Text:
1. A pressure vessel having a vessel main body for receiving high pressure gas and a partition wall formed in the vessel main body so as to divide the inside thereof in half into a first chamber and a second chamber, wherein the vessel main body is provided with: a top wall connected to an upper end of the partition wall; a bottom wall facing the top wall and connected to a lower end of the partition wall; and a peripheral wall connecting the periphery of the top wall and the periphery of the bottom wall, the top wall is provided with: a top-wall main body connected to an upper end of the peripheral wall and the upper end of the partition wall; a top-wall protruded part extending from the upper end of the partition wall to protrude externally from a part, located on a back side of a connection part of an inner surface of the top-wall main body and the upper end of the partition wall, of an outer surface of the top-wall main body; top-wall first-chamber-side ribs arranged in a standing condition on the outer surface on the first chamber of the top-wall main body; and top-wall second-chamber-side ribs arranged in a standing condition on the outer surface on the second chamber of the top-wall main body, the bottom wall is provided with: a bottom-wall main body connected to a lower end of the peripheral wall and the lower end of the partition wall; a bottom-wall protruded part extending from the lower end of the partition wall to protrude externally from a part, located on a back side of a connection part of an inner surface of the bottom-wall main body and the lower end of the partition wall, of an outer surface of the bottom-wall main body; bottom-wall first-chamber-side ribs arranged in a standing condition on the outer surface on the first chamber of the bottom-wall main body; and bottom-wall second-chamber-side ribs arranged in a standing condition on the outer surface on the second chamber of the bottom-wall main body, the top-wall first-chamber-side ribs and the top-wall second-chamber-side ribs each have a shape which connects with the top-wall protruded part, and the bottom-wall first-chamber-side ribs and the bottom-wall second-chamber-side ribs each have a shape which connects with the bottom-wall protruded part.