Fuel gas tank manufacturing method

US9656543B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9656543-B2
Application numberUS-201514612447-A
CountryUS
Kind codeB2
Filing dateFeb 3, 2015
Priority dateMar 26, 2014
Publication dateMay 23, 2017
Grant dateMay 23, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A tank for safely storing a fuel in a high-pressure gaseous state, and a method for manufacturing the tank are provided. The fuel gas storage tank includes a composite material that forms a tank shell and a liner disposed under the composite material. In addition, the liner has a structure in which a metal coil is integrally formed within the liner.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for manufacturing the fuel gas storage tank, comprising: molding a metal coil integrated liner equipped with a metal coil using an injection or extrusion mold; filament winding a composite material on a metal coil integrated liner surface using a filament winding apparatus; and molding a gas diffusion layer by performing foam molding of a porous layer material on the metal coil integrated liner surface using a foam mold. 2. The method of claim 1 , wherein the molding of the metal coil integrated liner includes: molding a metal coil integrated liner body portion equipped with the metal coil using the injection or extrusion mold; molding a metal boss integrated liner dome portion equipped with metal boss portions; and joining the liner body portion and the liner dome portion by fusing. 3. The method of claim 1 , further comprising: forming residual stress between the composite material and the liner using autofrettage. 4. The method of claim 1 , wherein at the molding of the composite material on the metal coil integrated liner surface includes: covering a portion of boss portions at both ends of the liner when molding the composite material.

Assignees

Inventors

Classifications

  • with details of composition · CPC title

  • in form of fibers or filaments · CPC title

  • Combined manufacture including applying or shaping of fluent material · CPC title

  • of closing end pieces, e.g. caps · CPC title

  • on or in the wall, e.g. ribs · CPC title

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Frequently asked questions

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What does patent US9656543B2 cover?
A tank for safely storing a fuel in a high-pressure gaseous state, and a method for manufacturing the tank are provided. The fuel gas storage tank includes a composite material that forms a tank shell and a liner disposed under the composite material. In addition, the liner has a structure in which a metal coil is integrally formed within the liner.
Who is the assignee on this patent?
Hyundai Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification B29C70/86. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue May 23 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).