REINFORCED SHELL OF LAMINAR COMPOSITE FOR INNER PRESSURE Russian patent published in 2014 - IPC F17C1/06 F17C1/16 F16J12/00 

FIELD: electricity.

SUBSTANCE: shell is made in the form of two sections 1 and 2 with cylindrical areas 3 and 4 and butt convex bottoms 5 and 6 with formation at the cylindrical part of each section of circular butt ends 13, 14 at which outer surface of the cylindrical part from the bottom side there are step-like additional layers of woven fabric 15, 16, 17, 18 impregnated with a binding agent thus forming conical surfaces 19, 20; all woven layers are divided at least into two groups 15, 16 and 17, 18, and each group is covered by at least one layer of the basic structure material 23, 24 and 25, 26; at the butt end near the inner surface of one section there is a protrusion 27 with a centring surface 29 and in the second section there is a matching depression 28 with the surface 30 equidistant to the centring protrusion surface; butt surfaces of the protrusion and depression 31, 32 are spaced mutually thus forming a circular groove 33 with a sealing element placed in it.

EFFECT: invention allows expanding the scope of all-wound shells application with simplification of their manufacturing process.

3 cl, 2 dwg