# US 2014/0197179 A1 · High pressure gas container and manufacturing method for high pressure gas container

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- Number: US 2014/0197179 A1
- Document ID: US20140197179A1
- Status: Published application
- Kind: A1
- Application number: 14/130,318
- Filed: 2012-06-29
- Published: 2014-07-17
- Earliest claimed: 2011-07-01
- Assignees: Kayaba Industry Co., Ltd.
- Inventors: Yoshinari Nakamura; Takashi Kobayashi
- Web page: https://patentgrep.com/patent/US20140197179A1

## CPC

- F17C 1/04: Protecting sheathings
- B21D 51/24: high-pressure containers, e.g. boilers, bottles
- F17C 1/06: built-up from wound-on bands or filamentary material, e.g. wires
- F17C 2201/0109: with exteriorly curved end-piece
- F17C 2201/056: Small (<1 m3)
- F17C 2203/0604: Liners
- F17C 2203/0646: Aluminium
- F17C 2203/0663: in form of fibers or filaments
- F17C 2221/012: Hydrogen
- F17C 2223/0123: gaseous, e.g. CNG, GNC
- F17C 2223/035: High pressure (>10 bar)
- F17C 2223/036: Very high pressure (>80 bar)
- Y02E 60/32: Hydrogen storage
- 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)
- B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

This invention is a high pressure gas container into which a high pressure gas is charged, includes: a liner into which the high pressure gas is charged; and a reinforcing sleeve that envelops an outer surface of the liner, wherein the liner includes: a cylindrical liner trunk portion; and a pair of liner shoulder portions formed by reducing a diameter of respective end portions of the liner trunk portion, and the reinforcing sleeve includes: a sleeve trunk portion fitted to the liner trunk portion; and a pair of sleeve shoulder portions that extend from the sleeve trunk portion so as to contact the respective liner shoulder portions.

## Claims

### Claim 1

A high pressure gas container that is configured to be charged with a high pressure gas thereinto, comprising:
a liner that is configured to be charged with the high pressure gas thereinto; and
a reinforcing sleeve that envelops an outer surface of the liner,
wherein the liner includes:
a cylindrical liner trunk portion; and
a pair of liner shoulder portions formed by reducing a diameter of respective end portions of the liner trunk portion, and
the reinforcing sleeve includes:
a sleeve trunk portion fitted to the liner trunk portion; and
a pair of sleeve shoulder portions that extend from the sleeve trunk portion so as to contact the respective liner shoulder portions.

### Claim 2 (depends on 1)

The high pressure gas container as defined in claim 1, wherein the reinforcing sleeve is formed from a metal having a higher tensile strength than the liner.

### Claim 3 (depends on 1)

The high pressure gas container as defined in claim 1, wherein the reinforcing sleeve is formed from a metal having a smaller thermal expansion coefficient than the liner.

### Claim 4 (depends on 1)

The high pressure gas container as defined in claim 1, wherein the liner is formed from an aluminum alloy, and the reinforcing sleeve is formed from high tensile steel.

### Claim 5 (depends on 1)

The high pressure gas container as defined in claim 1, wherein the liner shoulder portion has a tapered outer surface, and
the sleeve shoulder portion has a tapered inner surface that contacts the outer surface of the liner shoulder portion.

### Claim 6

A manufacturing method for a high pressure gas container having a liner into which a high pressure gas is charged and a reinforcing sleeve that envelops an outer peripheral surface of the liner, comprising:
a fitting process for fitting the reinforcing sleeve to a cylindrical liner trunk portion of the liner; and
a molding process for forming sleeve shoulder portions contacting respective liner shoulder portions, which are formed by throttling respective end portions of the liner trunk portion, by molding the reinforcing sleeve to throttle respective end portions thereof.