# US 10,767,814 B2 · Pressure vessel equipped with permeated gas discharging structure

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- Number: US 10,767,814 B2
- Document ID: US10767814B2
- Status: Granted
- Kind: B2
- Application number: 16/302,012
- Filed: 2017-04-05
- Published: 2019-05-30
- Granted: 2020-09-08
- Earliest claimed: 2016-05-18
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; KIA Motors Corporation
- Inventors: Jae Han Chung; Hyun Joon Lee; Ki Ho Hwang; Gye Hyoung Yoo; Seok Bong Heo; Jong Lyul Kim
- Web page: https://patentgrep.com/patent/US10767814B2

## CPC

- F17C 1/08: Integral reinforcements, e.g. ribs
- 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 2203/012: on or in the wall, e.g. ribs
- F17C 2203/0604: Liners
- F17C 2203/0617: with one layer
- F17C 2203/0619: with two layers
- F17C 2203/0621: with three layers
- F17C 2203/066: Plastics
- F17C 2203/0663: in form of fibers or filaments
- F17C 2205/0305: Bosses, e.g. boss collars
- F17C 2221/011: Oxygen
- F17C 2221/012: Hydrogen
- F17C 2221/014: Nitrogen
- F17C 2221/033: Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
- F17C 2223/0123: gaseous, e.g. CNG, GNC
- F17C 2223/035: High pressure (>10 bar)
- F17C 2223/036: Very high pressure (>80 bar)
- F17C 2260/011: Improving strength
- F17C 2260/037: Handling leaked fluid
- 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)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

The present disclosure relates to a pressure vessel equipped with a permeated gas discharging structure, the pressure vessel including a nozzle boss into and from which a gas flows and is discharged; a liner coupled to a flange portion of the nozzle boss and provided with a space formed therein for receiving fluid; a discharge path forming part configured to form a gas discharging path from the nozzle boss side along an outer surface of the liner in a central axial direction; and a composite material provided at outer sides of the liner and the discharge path forming part.

## Claims

### Claim 1

A pressure vessel comprising:
a nozzle boss into and from which a gas flows and is discharged;
a liner coupled to a flange portion of the nozzle boss and provided with a space formed therein for receiving fluid;
a discharge path forming part configured to form a gas discharging path from a side of the pressure vessel comprising the nozzle boss and along an outer surface of the liner in a central axial direction; and
a composite material provided at outer sides of the liner and the discharge path forming part,
wherein the discharge path forming part comprises
a plurality of rib members formed from the nozzle boss side along the outer surface of the liner in the central axial direction and radially disposed with respect to the central axial direction; and
a ring-shaped member to which upper ends of the rib members are secured, the ring-shaped member being provided around an outer side of the nozzle boss.

### Claim 2 (depends on 1)

The pressure vessel of claim 1, wherein the rib members are formed and disposed in an umbrella rib configuration.

### Claim 3 (depends on 1)

The pressure vessel of claim 1, wherein the rib members are spaced apart from each other.

### Claim 4 (depends on 1)

The pressure vessel of claim 1, wherein the rib members are formed to extend to at least a portion of a side surface of the liner.

### Claim 5 (depends on 1)

The pressure vessel of claim 1, wherein at least one region of the outer surface of the liner is formed as a pre-treatment region on which any one of a release agent-treatment and a plasma treatment is performed.

### Claim 6 (depends on 5)

The pressure vessel of claim 5, wherein the at least one pre-treatment region is formed as a plurality of strip-shaped regions having a length along the outer surface of the liner in the central axial direction, and the plurality of pre-treatment regions are formed to be spaced apart from each other.

### Claim 7 (depends on 5)

The pressure vessel of claim 5, wherein the pre-treatment regions are formed into a lattice shape.

### Claim 8 (depends on 5)

The pressure vessel of claim 5, wherein a separation region in which at least portions of the liner and the composite material are separated from each other is formed on the liner and the composite material.

### Claim 9 (depends on 8)

The pressure vessel of claim 8, wherein when the release agent-treatment is preformed, at least portion of the separation region is formed at a position corresponding to the pre-treatment region.

### Claim 10 (depends on 8)

The pressure vessel of claim 8, wherein when the plasma treatment is preformed, at least portion of the separation region is formed to correspond a region except for the pre-treatment region.