Sectional shell for internal pressure from layered composite material

FIELD: manufacturing technology.

SUBSTANCE: shell is intended for articles of aircraft and rocket engineering. Shell comprises two sections 1 and 2, each of which consists of cylindrical part 3 and 4, convex bottoms 5 and 6, flanges in the bottoms pole holes 7 and 8, inner protective coating 9 and 10. Sections consist of a set of spiral 11 and annular 12 layers based on impregnated with a binder unidirectional bundles and annular bulges 13, 14 near cylindrical ends with located in them connecting pins 15, 16 and studs 17. Between connected ends of sections there is metal ring 18 along the external and the internal diameters equipped with centering belts 19, 20, the inner of which are made on their outer surfaces with local annular grooves 21 for locating sealing elements, for example, rubber bundles. Outer ones are made with conical, facing the section and converging to the ring surfaces 22, on the outer surface of the sections bulges there are mating conical surfaces, and along the circumference in the ring there are holes 23 coaxial with located in them connecting studs.

EFFECT: simplified assembling process.

5 cl, 5 dwg

 



 

Same patents:

FIELD: machine building.

SUBSTANCE: balloon manufacturing method involves production of a liner from hardened glass, winding of flexible material on it in radial direction, one of the said material's surfaces is made from adhesive substance and the other one - from antiadhesive substance. A bottom with a neck shall be laid over the liner. One end of the flexible material is to be led out through the hole in the liner and the neck, and a pressure shell is formed around its whole surface by spiral radial-diagonal winding of composite material with a binder being used, then hardening follows, the liner is crushed and its fragments are removed from the balloon cavity.

EFFECT: invention allows for simplified manufacturing procedure, reduced cost price and weight of balloon, and provides for non-shatterable destruction of the balloon.

2 dwg

FIELD: packaging industry.

SUBSTANCE: invention relates to a pressure container for storage of liquid and gaseous media. The pressure container comprises a plastic inner container with at least one neck element not connected to it integrally, which is located on the neck of the container in the area of the container opening, and with at least partly covering the plastic inner container and the neck element with the bearing shell. The neck element is provided with means for receiving fittings. The neck element is provided with an insert which forms at least a part of the neck of the container and which provides tight fit for the fittings inserted in the neck element. The mandrel-type cylindrical part of the insert forms with the wall of the plastic inner container the container neck drawn into the plastic inner container. At that the wall of the plastic inner container in the area of the opening of the container is conically drawn and forms a nozzle dented into the inner area of the container.

EFFECT: increasing tightness.

12 cl, 8 dwg

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

FIELD: machine building.

SUBSTANCE: invention relates to high pressure vessels for placement of various fluid media under pressure. A boss for a high pressure vessel has a flange. The specified flange has an outer side and an inner side. Besides, the boss comprises an inner mounting slot and multiple channels. The specified mounting slot is placed on the specified internal side and has an inner side wall. Multiple channels are placed in the specified inner side wall. Besides, channels do not communicate with the outer side. Also versions are described for execution of a high-pressure vessel, as well as the method for execution of a high-pressure vessel.

EFFECT: group of inventions is aimed at prevention of possibility of gaseous medium leakage at inner side of a flange to outer side of a flange.

24 cl, 8 dwg

FIELD: machine building.

SUBSTANCE: invention refers to bushing (4) for a high-pressure bottle and to a method of its attachment to the bottle. The bushing consists of two elements attached to each other, which can be combined into single structure (3) of the bottle itself, which is formed from composite material, metal alloy, synthetic material, resins and reinforcing fibres. Internal removable element (4.2) of neck (4) represents in its inner part a hexagonal through hole (9) while the upper part represents a thread for attachment of a valve or a plug; on the upper outer part an arrangement is made for a thread for connection to external element (4.9) while on the lower part there is a ring-shaped seat to receive seal (5) in direct contact with core (2). Similar seal (5) is provided on external element (4.9). The end part of core (2) is fixed between two elements (4.2) and (4.9) on the lower part; after that, this assembly is combined on the outer side into many winding layers made from reinforcing fibres and synthetic resins.

EFFECT: enhanced reliability of a bottle.

8 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: invention proposes high-pressure vessel (10) having the first end (14) with the first thickening (16) and cylindrical section (30). Vessel (10) includes internal lining (20), composite cover (18) located above internal lining (20) and the first longitudinal ventilation duct (22) located between internal lining (20) and composite cover (18). The first longitudinal ventilation duct (22) includes elongated element (23, 23', 23") forming the ventilation duct and is continued at least from cylindrical section (30) of the vessel to the first thickening (16); besides, the end of the first longitudinal duct is located along the neck of the thickening and opens to atmosphere.

EFFECT: enhanced reliability of a vessel.

7 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: element (2, 9) is arranged in an opening of the capacity containing internal insert (3) nonpermeable for fluid medium and external reinforced polymer layer (1); element includes a short pipe section (2) and cover plate (9); cover plate is arranged on upper end of pipe section (2), which is continued to the outside of the capacity; pipe section (2) passes through the capacity opening to lower end, where a flange continued to the outside is arranged on the pipe section between external reinforced polymer layer (1) and internal insert in the capacity; at that, internal insert (3) is continued to the outside through the opening of pipe section to the above cover plate; inside internal insert there arranged is sealing surface; the latter adjoins the internal insert and has at least one gas-nonpermeable seal adjacent to internal insert; pretension device (4, 8, 10, 16) is arranged outside the internal insert, in a groove, and pipe section, around upper end of pipe section, and it presses the internal insert (3), despite the capacity pressure, to the above sealing surface, and at least to one gas-nonpermeable seal (6).

EFFECT: enhanced reliability.

10 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: method to control the metal-cylinder efficiency involves a comparison of the measured values of allowable increment capacity of the tested cylinder under the influence of increased internal pressure which is measured by the volume of liquid pumped into the tank in the process of increasing internal pressure. A control unit includes a reservoir (1) for water, a measuring cup (3), a hydraulic pump (5), a pressure gauge (12), a piping system with valves and the means of connecting pipelines with the metal cylinder. Measure vessel (3) is provided with the means of measuring the volume of liquid pumped into the controlled metal-plastic cylinder (11). The first pipeline (6) connects tank (1), hydraulic pump (5), measuring cup (3) and the environment. In pipeline (6) between reservoir (1), hydraulic pump (5) and the vessel (3) a three-way valve is installed (8), and next to tank (1) and measuring cup (3) shut-off valves (9), (10) are located. The second line (7) sequentially connects hydraulic pump (5), medium (73) of connection to metal cylinder (11), pressure gauge (12) and the environment. Next to hydraulic pump (5) and manometer (12) on the second line (7) the shut-off valves are installed (13) (14).

EFFECT: use of the invention will provide high reliability of monitoring and ease of its implementation.

18 cl, 1 dwg

FIELD: physics.

SUBSTANCE: invention aims to create the housing for the external pressure of composite materials, which can be used as a self-contained construction as well as a separate module of deep-submerge vehicles and structures possessing positive buoyancy. The housing consists of the cylindrical section and frontal covers, primary structure and combination of groups of spiraling and circular layers, discrete stiffeners of various structure made of unidirectional high-modulus strings, tied with the polymeric binding, with flanges at the vents resting on the external surface of the primary structure. The strength enhancement and stability is achieved under the influence of high external hydraulic pressure up to 100 MPa.

EFFECT: enhancement of strength and stability of composite materials.

6 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: cylinder includes thin-wall metal cylindrical liner with shaped ends and neck flange with nozzle fixed in pole hole of pressure shell from composite material, which is formed with combination of groups of thread layers of reinforcing materials oriented in spiral and circumferential directions with various reinforcement powers; at that, neck flange of liner is equipped with circular projection on the side of open edge of nozzle with outer diameter which is bigger than the sum of diameter of pole hole of composite cover and two widths of wound band of threads of reinforcing materials, and between itself and outer surface of composite cover there formed is concentric circular cavity in which circular bandage is arranged so that it fills its whole volume and made from composite cover material, and nozzle of neck flange is fixed in circular bandage by means of grooves of non-circular shape.

EFFECT: high-effective operability at any specified level of cyclic loading with high pressure, and torque moments at minimum weight and cost of its manufacture.

11 cl, 4 dwg

Pressure vessel // 2244868

FIELD: storing or distributing gases or liquids.

SUBSTANCE: pressure vessel has cylindrical shell made of spiral and ring layers which are made of a fiber composite material and bottoms with flanges made of spiral layers and set in openings. The thickness of the cylindrical shell uniformly decreases along the length in the direction to the bottom with greater opening due to the decrease of the thickness of the ring layers.

EFFECT: reduced weight and cost of vessels.

3 dwg

FIELD: power supply systems.

SUBSTANCE: proposed invention is concerned with portable power supply system, fuel block incorporated in proposed power supply system, and device actuated by power generator and power supply system. Proposed power supply system functions to supply with power peripheral device and has fuel charging unit and power generation unit that can be connected to mentioned fuel charging unit and disconnected therefrom and functions to generate electrical energy using mentioned fuel supplied from mentioned fuel charging unit. Proposed fuel block has fuel storage cavity and fuel shell main body that can be connected to power generation unit and disconnected therefrom; power generation unit produces electrical energy using mentioned fuel and has open assembly unprotected against mentioned power generation unit when it is connected to the latter, and feed channel used for feeding fuel to mentioned power generation unit. Proposed fuel block has fuel storage cavity and shell that incorporates feed channel used for outlet of mentioned fuel and is made of biodegradable material.

EFFECT: enhanced effectiveness of energy resource utilization.

49 cl, 135 dwg

FIELD: mechanical engineering.

SUBSTANCE: vessel has plastic shell, flanges mounted in the pole openings in the shell, and lid set in one of the pole flanges. The lid is concave inward and bears on the inner side of the pole flange. The butt between the pole flange and lid is made to provide the radius of the circumference formed by intersection of the middle surface of the lid and surface of the bearing part of the flange to be larger than that of the pole opening in the plastic shell. The thickness of the pole flange should be at least 1.5-2 mm, which is sufficient for the formation of the plastic shell. The loading acts on the developed bearing surface of the lid which is mating to the inner surface of the pole flange.

EFFECT: decreased weight of vessel.

2 cl, 5 dwg

FIELD: pressure vessels.

SUBSTANCE: wet has-holder has ring coaxial double-walled tank for liquid. Dome-like covering with the gas supplying pipe is provided above the inner wall of the tank. The space between the walls receives bell with centering rollers which can move up and down over the vertical line. The bottom part of the bell side is provided with openings which connect the under-bell space with the atmosphere when the bell is at the maximum level.

EFFECT: simplified design and reduced consumption of materials for manufacturing.

2 cl, 3 dwg

FIELD: mechanical engineering.

SUBSTANCE: pressure vessel comprises metallic flanges mounted in its pole ports. The bearing surface of the shank of the metallic flange is made of two sections. The first section is conical and located at the base of the metallic flange, and the second section is convex and is located at the top of the flange. The length of the generatrix of the cone is no less than the width of the reinforcing belt made of cords and threads plus the shift of the plastic due to its deformation.

EFFECT: reduced sizes and enhanced reliability.

2 dwg

Gastight vessel // 2298724

FIELD: manufacturing high-pressure plastic vessels.

SUBSTANCE: vessel comprises a lid provided with the valving device. The wall of the vessel is made of thermoplastic and a diffusion-barrier system composed of at least one coating applied throughout the surface with a thickness about 500 μm.

EFFECT: enhanced reliability and reduced weight.

15 cl, 10 dwg

FIELD: mechanical engineering industry; other industries; devices for production of the high pressure vessels by the method of coiling of the reinforcing materials.

SUBSTANCE: the invention is pertaining to production of the high pressure vessels by the method of coiling of the reinforcing material and may be used in mechanical engineering industry. The mandrel for manufacture of the high pressure vessels out of the composite materials contains the thin-wall sealing body with the holes. Inside the sealing body feed the binary mixture releasing in the process of the chemical reaction the gas creating the necessary internal pressure and ensuring the necessary rigidity of the sealing body in the process of the coiling and the composite material solidification. Usage of the invention will provide the reliable rigidity at the presence of the minimal polar holes in the sealing body and simplification of the process of manufacture of the high pressure vessels.

EFFECT: the invention ensures the reliable rigidity of the high pressure vessels at the presence of the minimal polar holes in the sealing body and simplification of the process of manufacture of the high pressure vessels.

1 dwg

FIELD: high-pressure vessels.

SUBSTANCE: high-pressure housing comprises shell and elongated bottoms that are made by applying belts along the line of constant deviation.

EFFECT: enhanced strength and reliability.

2 cl, 4 dwg

FIELD: technological processes.

SUBSTANCE: in realisation of method of power jacket winding on high pressure cylinder from polymer composite materials on sealing liner, which consists of cylindrical part and spherical bottoms with pole flanges, with tape of fiber threads spiral layers are wound, touching with tape coils that are installed in bottoms of pole flanges necks. Threads of tape in the area of contact are arc-bent, tape is deformed to garrot of circular section, and with array of arc-bent threads pressing ring is formed for pole flange neck. Maximum length of threads for ring formation is determined by formula: where 1 - maximum length of threads for ring formation, H - tape width, mm; r - radius of pole flange neck, mm; c= 1.02-1.25 - experimental coefficient, which considers change of thread length from tape "packing", depends on tape tension, viscosity of binder, deviation from optimal location of threads in the ring.

EFFECT: increase of operation reliability.

2 cl, 9 dwg

FIELD: mechanics.

SUBSTANCE: high-pressure vessel incorporates shell. The open faces of the said shell elements are in an overlapping or abutting contact between themselves, the about joint areas being additionally fitted with, at least, one coupling overlapping ring. The overlapping contact between the aforesaid elements or between the said elements and the overlapping ring is ensured by a sealing adhesion layer, the size of overlapping of all aforesaid elements is calculated by the formula as follows, i.e. L≥p×D/(4×σ), where p is the designed vessel destruction pressure, D is the maximum vessel diameter in the area of the adhesion joint, σ is the designed polymerised adhesive layer shear strength, the load-bearing enclosure featuring a double overlapping of the aforesaid joints coming over to the vessel bottom.

EFFECT: simple high-pressure vessel design, ease of manufacture, higher assembly efficiency and lower production costs.

4 cl, 8 dwg

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