# US 8,540,110 B2 · High-pressure container

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- Number: US 8,540,110 B2
- Document ID: US8540110B2
- Status: Granted
- Kind: B2
- Application number: 13/059,256
- Filed: 2009-08-26
- Published: 2011-11-03
- Granted: 2013-09-24
- Earliest claimed: 2008-08-27
- Assignees: Armotech S.R.O.
- Applicants: Sergey V. Lukiyanets; Nikolay G. Moroz
- Inventors: Sergey V. Lukiyanets; Nikolay G. Moroz
- Web page: https://patentgrep.com/patent/US8540110B2

## CPC

- F17C 1/00: Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge (pressurised apparatus for purposes other than storage, see the relevant subclasses such as A62C, B05B; associated with vehicles, see the appropriate subclass of classes B60 - B64; pressure vessels in general F16J12/00 {; autoclaves B01J3/04; tank vehicles B60P3/22; railway tank wagons for carrying fluent materials B61D5/00; accumulators for supplying fluid under pressure F15B1/04; liquefied gas stoves F24C3/00})
- F17C 2201/0109: with exteriorly curved end-piece
- F17C 2201/0114: with interiorly curved end-piece
- F17C 2201/0119: with flat end-piece
- F17C 2203/0604: Liners
- F17C 2203/0621: with three layers
- F17C 2203/0634: Materials for walls or layers thereof
- F17C 2203/0636: Metals
- F17C 2203/0673: Polymers
- F17C 2205/0397: on both sides of the pressure vessel
- F17C 2209/234: of closing end pieces, e.g. caps
- F17C 2221/011: Oxygen
- F17C 2223/0123: gaseous, e.g. CNG, GNC
- F17C 2223/013: liquid
- F17C 2223/035: High pressure (>10 bar)
- F17C 2250/043: Pressure
- F17C 2260/011: Improving strength
- F17C 2260/012: Reducing weight
- F17C 2260/013: Reducing manufacturing time or effort
- F17C 2270/0168: by vehicles
- F17C 2270/05: for industrial use
- F17C 2270/079: Respiration devices for rescuing
- Y10T 428/1352: Polymer or resin containing [i.e., natural or synthetic]
- Y10T 428/1355: Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
- Y10T 428/1359: Three or more layers [continuous layer]
- Y10T 428/1386: Natural or synthetic rubber or rubber-like compound containing
- F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The invention relates to a high-pressure container comprising a thin-walled, cylindrical metal liner (1) having bases (8) on the end sections and an outer stable jacket (2) that surrounds the liner (1). At least one of the bases (8) of the liner (1) has a slight convex curvature towards the interior of the liner (1). A pressure converter (4) is situated between the outer surface of the convex base (8) and the inner surface of a base part of the stable jacket (2), said converter being constructed from a rigid profiled base on the side facing the base part of the rigid jacket (2) and a deformable cushion (6) of viscoelastic material on the side facing the convex base (8).

## Claims

### Claim 1

A high-pressure container comprising:
a thin-walled, cylindrical, metallic liner with end walls;
an outer stable jacket surrounding the liner, at least one of the end walls of the liner being curved gently with slight convexity as a segment of a sphere toward an interior of the liner, a maximum height of the spherical segment being no more than 0.06 of a radius of the cylindrical liner; and
a pressure buffer between the outer surface of the curved end wall and the inner surface of an end wall of the stable jacket, the pressure buffer being formed on the side directed toward the end wall of the stable jacket as a rigid profile base and, on the side directed toward the curved end wall, as a deformable cushion of viscoelastic material.

### Claim 2 (depends on 1)

The container according to claim 1, wherein the liner is a corrugated liner is covered from outside with viscoelastic material, the outer stable jacket being engaged over the viscoelastic material of the liner.

### Claim 3 (depends on 1)

The container according to claim 1, wherein the deformable cushion is formed from at least two disks of viscoelastic material of different densities.

### Claim 4 (depends on 1)

The container according to claim 1, wherein the viscoelastic material is virtually incompressible in terms of a reduction in volume.

### Claim 5 (depends on 1)

The container according to claim 1, wherein the total volume of the cushion of the pressure buffer exceeds the increase in the internal volume of the stable jacket axially on deformation thereof.

### Claim 6 (depends on 1)

The container according to claim 1, wherein the surface of the gently curved end wall of the liner is shaped as a cone with an apex angle of at least 172° and having a tip pointed directed toward the interior of the liner.

### Claim 7 (depends on 1)

The container according to claim 1, wherein the surface of the gently curved end wall of the liner is shaped as a combination of conical surfaces and flat rings.

### Claim 8 (depends on 1)

The container according to claim 1, wherein the end wall of the outer stable jacket and the base of the pressure buffer are separated from one another over the entire contact surface by friction-reducing material.

### Claim 9 (depends on 1)

The container according to claim 1, wherein at least one end wall of the outer stable jacket is ellipsoidal in shape.