RU93005014A - SEALING ELEMENT OF HARDNESS FOR VESSELS OF HIGH PRESSURE, REINFORCED BY CURRENT FIBER MATERIAL - Google Patents

Claims (1)

A sealing stiffening element is placed in a central hole made in a high-pressure vessel consisting of an outer shell made of a winding fibrous composite material and an inner shell of a non-metallic material. The boss-shaped sealing element comprises a tubular neck protruding outward from the inner cavity of the vessel, and an annular support flange that is positioned radially in the direction from the inner ring of the neck, and supports the peripheral edge of the central opening in the high-pressure vessel. Radially with a support flange, there is placed a connecting flange with respect to it with two coaxially opposite surfaces in which locking grooves are made. The bottom wall of each of the locking grooves is located between two mutually beveled side walls, thereby ensuring reliable fixation of each of the protrusions made on the inner shell, in the corresponding locking groove. Reliable fixation of the protrusions in the grooves is also ensured by the fact that the cross-sectional shape of the protrusion corresponds to the cross-sectional shape of the anchoring groove interacting with this protrusion. In those cases of practical use, when the inner shell of a high-pressure vessel is made of a component obtained by pneumoforming, i.e. blow molding, a coupling fastener of injection molded material is attached to the support flange. The position of this mating fastener precisely predetermines the place where the inner shell will be attached by welding to the outer shell (casing) of the vessel.