JPH1113992A - Manufacture of frp pressure vessel - Google Patents
Manufacture of frp pressure vesselInfo
- Publication number
- JPH1113992A JPH1113992A JP17502697A JP17502697A JPH1113992A JP H1113992 A JPH1113992 A JP H1113992A JP 17502697 A JP17502697 A JP 17502697A JP 17502697 A JP17502697 A JP 17502697A JP H1113992 A JPH1113992 A JP H1113992A
- Authority
- JP
- Japan
- Prior art keywords
- frp
- pressure vessel
- filling
- manufacturing
- filling container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、軽量なＦＲＰ製圧
力容器の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a lightweight FRP pressure vessel.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】天然ガ
スや液化石油ガスなどを充填する圧力容器は元々鋼製で
あった。2. Description of the Related Art A pressure vessel filled with natural gas or liquefied petroleum gas was originally made of steel.
【０００３】しかし、鋼製の圧力容器は非常に重く、運
搬性が要求される場面においては必然的に小型の圧力容
器しか使用することができず、よって、従来より軽量化
が要求されている。[0003] However, steel pressure vessels are very heavy, and only small pressure vessels can inevitably be used in situations where portability is required. Therefore, weight reduction is required more than before. .
【０００４】そして、軽量化した圧力容器として、アル
ミニウム合金製の容器や、鋼鉄製やアルミ合金製の薄い
充填容体（ライナー）をＦＲＰの補強層で補強した容器
が開発され、また、更に軽量化するため充填容体も樹脂
製としたＦＲＰ製圧力容器が開発されているが、現在に
おいては、該ＦＲＰ製圧力容器にもより一層の軽量化が
要求されており、充填容体や補強層の肉薄化が行われて
いる。[0004] As a lighter pressure vessel, a vessel made of aluminum alloy or a vessel in which a thin filled container (liner) made of steel or aluminum alloy is reinforced with an FRP reinforcing layer has been developed. For this purpose, pressure vessels made of FRP, in which the filling container is made of resin, have been developed. At present, however, further reduction in the weight of the FRP pressure container is required, and thinning of the filling container and the reinforcing layer is required. Has been done.
【０００５】一方、ＦＲＰ製圧力容器の樹脂製充填容体
は、ガスシール性及び生産性の点から、一般的にポリエ
チレン樹脂などの熱可塑性樹脂で形成しており、また、
ＦＲＰ製圧力容器の補強層は、ＦＲＰ製圧力容器の強度
及び軽量化の点から、強化繊維として炭素繊維，アラミ
ド繊維，ガラス繊維などを用い、樹脂としてエポキシ樹
脂などを用いた熱硬化性ＦＲＰで形成している。そし
て、具体的には、前記樹脂製充填容体の外周にフィラメ
ントワインディング法やテープワインディング法などに
より熱硬化性ＦＲＰを配設した後、該熱硬化性ＦＲＰを
熱硬化して補強層を形成している。[0005] On the other hand, the resin-filled container of the FRP pressure vessel is generally formed of a thermoplastic resin such as polyethylene resin from the viewpoint of gas sealing properties and productivity.
The reinforcing layer of the pressure vessel made of FRP is made of thermosetting FRP using carbon fiber, aramid fiber, glass fiber, etc. as the reinforcing fiber and epoxy resin as the resin, in view of the strength and weight reduction of the pressure vessel made of FRP. Has formed. And, specifically, after arranging a thermosetting FRP on the outer periphery of the resin-made filling container by a filament winding method, a tape winding method, or the like, the thermosetting FRP is thermoset to form a reinforcing layer. I have.
【０００６】従って、樹脂製充填容体と補強層とは使用
する樹脂の熱特性が異なっており、充填容体の肉厚を薄
くすると補強層の熱硬化時に充填容体が変形してしま
い、この変形部分から充填容体（圧力容器）が破損して
しまう恐れがあるため、従来の製造方法では充填容体の
肉薄化に限界がある。Therefore, the thermal characteristics of the resin used for the resin-filled container and the reinforcing layer are different. If the thickness of the resin-filled container is reduced, the resin-filled container is deformed during thermosetting of the reinforcing layer. Therefore, there is a possibility that the filling container (pressure vessel) may be damaged, so that the conventional manufacturing method has a limit in reducing the thickness of the filling container.
【０００７】本発明は、簡易な方法により充填容体をよ
り一層肉薄化することができ、ＦＲＰ製圧力容器を軽量
化することができる実用性に秀れたＦＲＰ製圧力容器の
製造方法を提供するものである。The present invention provides a highly practical method of manufacturing a pressure vessel made of FRP, which can further reduce the thickness of the filled container by a simple method and reduce the weight of the pressure vessel made of FRP. Things.
【０００８】[0008]
【課題を解決するための手段】添付図面を参照して本発
明の要旨を説明する。The gist of the present invention will be described with reference to the accompanying drawings.
【０００９】天然ガスや液化石油ガスなどの充填ガス用
のＦＲＰ製圧力容器の製造方法であって、開口部２を有
する充填容体１内を該充填容体１外より高圧にした後、
この充填容体１の外周に補強層５を設けることを特徴と
するＦＲＰ製圧力容器の製造方法に係るものである。A method for manufacturing a pressure vessel made of FRP for a filling gas such as natural gas or liquefied petroleum gas, wherein the inside of a filling vessel 1 having an opening 2 is made higher than the outside of the filling vessel 1,
The present invention relates to a method of manufacturing a pressure vessel made of FRP, wherein a reinforcing layer 5 is provided on the outer periphery of the filling container 1.
【００１０】また、請求項１記載のＦＲＰ製圧力容器の
製造方法において、フィラメントワインディング法で補
強層５を設けることを特徴とするＦＲＰ製圧力容器の製
造方法に係るものである。Further, in the method of manufacturing a pressure vessel made of FRP according to the first aspect, there is provided a method of manufacturing a pressure vessel made of FRP, wherein the reinforcing layer 5 is provided by a filament winding method.
【００１１】また、請求項１，２いずれか１項に記載の
ＦＲＰ製圧力容器の製造方法において、充填容体１の外
周に補強層５を設けた後、充填容体１内の高圧状態を解
除せしめることを特徴とするＦＲＰ製圧力容器の製造方
法に係るものである。In the method for manufacturing a pressure vessel made of FRP according to any one of claims 1 and 2, after the reinforcing layer 5 is provided on the outer periphery of the filling container 1, the high pressure state in the filling container 1 is released. The present invention relates to a method of manufacturing a pressure vessel made of FRP.
【００１２】また、請求項１〜３いずれか１項に記載の
ＦＲＰ製圧力容器の製造方法において、充填容体１が熱
可塑性樹脂であることを特徴とするＦＲＰ製圧力容器の
製造方法に係るものである。A method for manufacturing an FRP pressure vessel according to any one of claims 1 to 3, wherein the filling container 1 is a thermoplastic resin. It is.
【００１３】また、請求項１〜４いずれか１項に記載の
ＦＲＰ製圧力容器の製造方法において、補強層５が熱硬
化性ＦＲＰであることを特徴とするＦＲＰ製圧力容器の
製造方法に係るものである。Further, in the method for manufacturing a pressure vessel made of FRP according to any one of claims 1 to 4, the reinforcing layer 5 is a thermosetting FRP. Things.
【００１４】また、請求項１〜５いずれか１項に記載の
ＦＲＰ製圧力容器の製造方法において、充填容体１の開
口部２にカプラ10を設け、該カプラ10からガスを充填容
体１内に封入して充填容体１内を加圧せしめることを特
徴とするＦＲＰ製圧力容器の製造方法に係るものであ
る。Further, in the method for manufacturing a pressure vessel made of FRP according to any one of claims 1 to 5, a coupler 10 is provided in the opening 2 of the filling container 1, and gas is supplied from the coupler 10 into the filling container 1. The present invention relates to a method of manufacturing a pressure vessel made of FRP, wherein the pressure vessel is filled and pressurized in the filling container 1.
【００１５】また、請求項１〜６いずれか１項に記載の
ＦＲＰ製圧力容器の製造方法において、充填容体１の開
口部２から補強棒４を挿入し該補強棒４を該開口部２の
反対内壁３に当接せしめて該充填容体１内に補強棒４を
架設した後、この充填容体１の外周に補強層５を設ける
ことを特徴とするＦＲＰ製圧力容器の製造方法に係るも
のである。In the method for manufacturing a pressure vessel made of FRP according to any one of claims 1 to 6, a reinforcing rod 4 is inserted from the opening 2 of the filling container 1 and the reinforcing rod 4 is inserted into the opening 2. The present invention relates to a method of manufacturing a pressure vessel made of FRP, wherein a reinforcing rod 4 is erected in the filling container 1 by being brought into contact with the opposite inner wall 3 and a reinforcing layer 5 is provided on the outer periphery of the filling container 1. is there.
【００１６】また、請求項７記載のＦＲＰ製圧力容器の
製造方法において、充填容体１の反対内壁３に凹部６を
設け、補強棒４を該凹部６に圧接状態に当接せしめるこ
とを特徴とするＦＲＰ製圧力容器の製造方法に係るもの
である。Further, in the method of manufacturing a pressure vessel made of FRP according to claim 7, a recess 6 is provided on the inner wall 3 opposite to the filling container 1, and the reinforcing rod 4 is brought into contact with the recess 6 in a pressed state. The present invention relates to a method for manufacturing a pressure vessel made of FRP.
【００１７】また、請求項７，８いずれか１項に記載の
ＦＲＰ製圧力容器の製造方法において、充填容体１の外
周に補強層５を設けた後、補強棒４を開口部２から取り
出すことを特徴とするＦＲＰ製圧力容器の製造方法に係
るものである。In the method of manufacturing a pressure vessel made of FRP according to any one of claims 7 and 8, after the reinforcing layer 5 is provided on the outer periphery of the filling container 1, the reinforcing rod 4 is taken out from the opening 2. The present invention relates to a method for producing an FRP pressure vessel characterized by the following.
【００１８】また、請求項７〜９いずれか１項に記載の
ＦＲＰ製圧力容器の製造方法において、補強棒４からガ
スを封入して充填容体１内を該充填容体１外より高圧に
した後、この充填容体１の外周に補強層５を設けること
を特徴とするＦＲＰ製圧力容器の製造方法に係るもので
ある。Further, in the method for manufacturing a pressure vessel made of FRP according to any one of claims 7 to 9, after filling the gas from the reinforcing rod 4 to make the inside of the filling container 1 higher than the outside of the filling container 1, The present invention relates to a method of manufacturing a pressure vessel made of FRP, wherein a reinforcing layer 5 is provided on the outer periphery of the filling container 1.
【００１９】[0019]
【発明の作用及び効果】充填容体１の外周に補強層５を
設けるときに、充填容体１内が該充填容体１外より高圧
にされているから、例えば、熱可塑性樹脂製の充填容体
１の外周に熱硬化性ＦＲＰから成る補強層５をフィラメ
ントワインディング法で設けるときに、フィラメントの
巻付力が強すぎても充填容体１が変形せず、また、補強
層５を熱硬化するときにも充填容体１が変形しないこと
となり、肉厚が薄い充填容体１でＦＲＰ製圧力容器ａを
製造することができる。When the reinforcing layer 5 is provided on the outer periphery of the filling container 1, the inside of the filling container 1 is set at a higher pressure than the outside of the filling container 1. For example, the filling container 1 made of a thermoplastic resin is used. When the reinforcing layer 5 made of thermosetting FRP is provided on the outer periphery by the filament winding method, the filling container 1 is not deformed even if the winding force of the filament is too strong, and also when the reinforcing layer 5 is thermoset. Since the filling container 1 is not deformed, the FRP pressure vessel a can be manufactured using the thin filling container 1.
【００２０】また、充填容体１内に補強棒４を架設する
と、充填容体１の開口部２と反対内壁３とが連結状態と
なるから充填容体１の力学的強度が増し、より一層肉厚
の薄い充填容体１でＦＲＰ製圧力容器ａを製造すること
ができる。When the reinforcing rod 4 is erected in the filling container 1, the opening 2 of the filling container 1 and the opposite inner wall 3 are connected to each other, so that the mechanical strength of the filling container 1 is increased, and the thickness of the filling container 1 is further increased. The pressure vessel a made of FRP can be manufactured with the thin filling container 1.
【００２１】本発明は上述のようにするから、簡易な方
法で従来例に比して充填容体を肉薄化することができ、
ＦＲＰ製圧力容器を軽量化して運搬性を高めることがで
きる実用性に秀れたＦＲＰ製圧力容器の製造方法とな
る。According to the present invention as described above, the thickness of the filling container can be reduced by a simple method as compared with the conventional example.
A method of manufacturing a pressure vessel made of FRP, which is excellent in practicality and can improve the transportability by reducing the weight of the pressure vessel made of FRP.
【００２２】[0022]
【実施例】図面は本発明の実施例を図示したものであ
り、以下に説明する。BRIEF DESCRIPTION OF THE DRAWINGS The drawings illustrate embodiments of the present invention and are described below.
【００２３】図１，２は第一実施例を図示したもので、
天然ガスや液化石油ガスなどの充填ガスを充填するＦＲ
Ｐ製圧力容器ａの製造方法であって、開口部２を有する
充填容体１内を該充填容体１外より高圧にした後、この
充填容体１の外周に補強層５を設けるＦＲＰ製圧力容器
の製造方法に係るものである。FIGS. 1 and 2 show the first embodiment.
FR for filling gas such as natural gas or liquefied petroleum gas
A method for manufacturing a pressure vessel a made of P, comprising: a pressure vessel inside a filling vessel 1 having an opening 2 is made higher in pressure than the outside of the vessel 1; It relates to a manufacturing method.
【００２４】充填容体１は、ＦＲＰ製圧力容器ａ内に充
填する充填ガスが漏洩しない材料で形成する。このよう
な特性を有し且つ軽量な材料としては熱可塑性樹脂を使
用することが望ましく、より具体的には、ポリエチレン
樹脂，ポリプロピレン樹脂，ポリカーボネイト，ナイロ
ン，ＡＢＳ樹脂などを使用することが望ましい。The filling container 1 is formed of a material that does not leak the filling gas filling the pressure vessel a made of FRP. As a lightweight material having such characteristics, it is desirable to use a thermoplastic resin, and more specifically, it is desirable to use a polyethylene resin, a polypropylene resin, a polycarbonate, a nylon, an ABS resin, or the like.
【００２５】充填容体１の開口部２には口部14を有する
口補強金具８が設けられており、該口補強金具８は開口
部２及び開口部２の近傍の強度を高める役割を果たすと
ともに、補強層５をフィラメントワインディング法で設
けるときの掴み治具としての役割や、充填ガスを出入さ
せる際のジョイント部の役割を果たす。また、口補強金
具８は軽量化の点からアルミニウム合金製等であること
が望ましい。A mouth reinforcing member 8 having a mouth portion 14 is provided in the opening portion 2 of the filling container 1, and the mouth reinforcing member 8 serves to enhance the strength of the opening portion 2 and the vicinity of the opening portion 2. When the reinforcing layer 5 is provided by the filament winding method, the reinforcing layer 5 serves as a gripping jig, and also serves as a joint portion when the filling gas flows in and out. Further, it is desirable that the mouth reinforcing bracket 8 is made of an aluminum alloy or the like from the viewpoint of weight reduction.
【００２６】充填容体１の開口部２と反対側の反対内壁
３の外壁面７には底補強金具９が設けられており、該底
補強金具９は底部の強度を高める役割を果たすととも
に、補強層５をフィラメントワインディング法で設ける
ときの掴み治具としての役割を果たす。また、底補強金
具９は口補強金具８と同様にアルミニウム合金製等であ
ることが望ましい。A bottom reinforcing member 9 is provided on an outer wall surface 7 of the opposite inner wall 3 opposite to the opening 2 of the filling container 1. The bottom reinforcing member 9 serves to increase the strength of the bottom portion and to reinforce the bottom portion. It functions as a gripping jig when the layer 5 is provided by the filament winding method. The bottom reinforcing metal 9 is preferably made of an aluminum alloy or the like, like the mouth reinforcing metal 8.
【００２７】尚、口補強金具８及び底補強金具９は充填
容体１から突出状態に設けられており、この突出した口
補強金具８及び底補強金具９を治具などで固定すること
により充填容体１を治具などに固定できるから、充填容
体１の外周に補強層５を設けるときに、充填容体１を固
定する新たな治具が必要とならず、容易にフィラメント
ワインディング法などにより補強層５を設けることがで
きる。The mouth metal fitting 8 and the bottom metal fitting 9 are provided so as to protrude from the filling container 1. The projecting mouth metal fitting 8 and the bottom reinforcing metal 9 are fixed by a jig or the like to fix the filling container. 1 can be fixed to a jig or the like. Therefore, when the reinforcing layer 5 is provided on the outer periphery of the filling container 1, a new jig for fixing the filling container 1 is not required, and the reinforcing layer 5 can be easily formed by a filament winding method or the like. Can be provided.
【００２８】補強層５は、充填ガスの圧力により適宜強
度設計して形成される。この際、充填容体１は強度設計
に入れない。補強層５は軽量且つ強度が高い材料とし
て、炭素繊維，ガラス繊維，アラミド繊維などを使用し
たＦＲＰが望ましい。尚、補強層５としてＦＲＰ層を形
成する方法として、熱硬化性樹脂を用いた繊維樹脂を充
填容体１の外周に巻回するフィラメントワインディング
法を採用すると、補強層５を容易に設けることができ
る。The reinforcing layer 5 is formed by appropriately designing the strength by the pressure of the filling gas. At this time, the filling container 1 is not included in the strength design. The reinforcing layer 5 is desirably made of FRP using carbon fiber, glass fiber, aramid fiber, or the like as a lightweight and high-strength material. In addition, as a method of forming the FRP layer as the reinforcing layer 5, if the filament winding method of winding a fiber resin using a thermosetting resin around the outer periphery of the filling container 1 is adopted, the reinforcing layer 5 can be easily provided. .
【００２９】充填容体１内を該充填容体１外より高圧に
するときには、逆止弁付きのカプラ10を使用して、該カ
プラ10からガスを充填容体１内に圧搾状態に充填して該
充填容体１内を加圧すると簡単に充填容体１内を高圧に
することができる。When the inside of the filling container 1 is set to a higher pressure than the outside of the filling container 1, the coupler 10 having a check valve is used to fill the filling container 1 with gas from the coupler 10 in a compressed state. When the inside of the container 1 is pressurized, the inside of the filled container 1 can easily be set to a high pressure.
【００３０】カプラ10は充填容体１の開口部２に着脱可
能に連設できることが望ましく、第一実施例では充填容
体１の開口部２、即ち、口補強金具８の口部14に雌螺子
部13を設け、カプラ10の外周に雄螺子部12を設けて該雌
螺子部13とカプラ10の雄螺子部12とがネジ螺着構造によ
り螺合されるように構成している。また、この雌螺子部
13は、ＦＲＰ製圧力容器ａ内の充填ガスの出入時に使わ
れるノズル等が取り付けられる取付部（ジョイント部）
に兼用される。It is desirable that the coupler 10 can be detachably connected to the opening 2 of the filling container 1. In the first embodiment, the female screw portion is connected to the opening 2 of the filling container 1, that is, the opening 14 of the mouth metal fitting 8. A male screw portion 12 is provided on the outer periphery of the coupler 10, and the female screw portion 13 and the male screw portion 12 of the coupler 10 are screwed together by a screw screw structure. Also, this female screw part
Reference numeral 13 denotes a mounting portion (joint portion) to which a nozzle and the like used when the filling gas in the FRP pressure vessel a enters and exits are mounted.
Also used for
【００３１】以下に、第一実施例のＦＲＰ製圧力容器ａ
の製造方法について詳述する。The FRP pressure vessel a of the first embodiment will be described below.
The method for manufacturing the will be described in detail.
【００３２】充填容体１は回転成形法やブロー成形法に
より成形する。尚、口補強金具８及び底補強金具９は予
め別工程で成形しておき、該口補強金具８及び底補強金
具９を回転成形又はブロー成形の金型に組み込み、回転
成形又はブロー成形の工程時にて同時一体成形として充
填容体１に付設する。The filling container 1 is formed by a rotational molding method or a blow molding method. The mouth metal fitting 8 and the bottom metal fitting 9 are formed in a separate process in advance, and the mouth metal fitting 8 and the bottom metal fitting 9 are assembled in a rotational molding or blow molding die to form a rotary molding or blow molding process. It is sometimes attached to the filling container 1 as simultaneous integral molding.
【００３３】続いて、充填容体１の開口部２、即ち、口
補強金具８の口部14にカプラ10を連設し、該カプラ10か
らガスを充填容体１内に充填して該充填容体１内を加圧
し、該充填容体１内を充填容体１外より高圧にする。Subsequently, a coupler 10 is connected to the opening 2 of the filling container 1, that is, the opening 14 of the mouth metal fitting 8, and a gas is filled into the filling container 1 from the coupler 10 to fill the gas into the filling container 1. The inside is pressurized to make the inside of the filling container 1 higher than the outside of the filling container 1.
【００３４】続いて、補強層５となる熱硬化性ＦＲＰを
充填容体１の外周にフィラメントワインディング法によ
り配設する。Subsequently, a thermosetting FRP serving as the reinforcing layer 5 is provided on the outer periphery of the filling container 1 by a filament winding method.
【００３５】続いて、充填容体１の外周に配設した熱硬
化性ＦＲＰを加熱硬化して補強層５を設ける。Subsequently, the thermosetting FRP disposed on the outer periphery of the filling container 1 is cured by heating to provide the reinforcing layer 5.
【００３６】続いて、口補強金具８の口部14からカプラ
10を取り外し、充填容体１内のガスを抜くとＦＲＰ製圧
力容器ａが得られることとなる。Subsequently, a coupler is inserted from the mouth 14 of the mouth reinforcing bracket 8.
By removing 10 and evacuating the gas in the filling vessel 1, an FRP pressure vessel a is obtained.
【００３７】第一実施例は上述のようにするから、充填
容体１の開口部２（口補強金具８の口部14）にカプラ10
を連設して該カプラ10からガスを充填容体１に加圧状態
に充填して充填容体１内を充填容体１外より高圧にする
だけで、充填容体１の形状が充填容体１内のガスの内圧
により保持されることとなり、よって、充填容体１の外
周に補強層５を設けるときに充填容体１が変形せず、従
来例に比して充填容体１を肉薄化することができ、ＦＲ
Ｐ製圧力容器ａを軽量化して運搬性を高めることができ
る実用性に秀れたＦＲＰ製圧力容器の製造方法となる。Since the first embodiment is as described above, the coupler 10 is inserted into the opening 2 of the filling container 1 (the opening 14 of the mouth metal fitting 8).
And the gas is filled into the filling container 1 from the coupler 10 in a pressurized state to make the inside of the filling container 1 higher in pressure than the outside of the filling container 1. Therefore, when the reinforcing layer 5 is provided on the outer periphery of the filling container 1, the filling container 1 is not deformed, and the thickness of the filling container 1 can be reduced as compared with the conventional example.
This is a method of manufacturing a pressure vessel made of FRP, which is excellent in practicality and can reduce the weight of the pressure vessel made of P and improve transportability.
【００３８】また、充填容体１は熱可塑性樹脂であるか
ら、軽量且つ生産性に秀れ、しかも充填容体１に充填し
た充填ガスが漏洩しない実用性に秀れたＦＲＰ製圧力容
器の製造方法となる。Further, since the filling container 1 is a thermoplastic resin, a method of manufacturing a pressure vessel made of FRP which is excellent in light weight and excellent in productivity and excellent in practicality in which the filling gas filled in the filling container 1 does not leak is disclosed. Become.
【００３９】また、補強層５は熱硬化性ＦＲＰであるか
ら、最適な圧力設計が可能であり、またフィラメントワ
インディング法により簡単に形成できることとなる実用
性，作業性に秀れたＦＲＰ製圧力容器の製造方法とな
る。Further, since the reinforcing layer 5 is a thermosetting FRP, an optimal pressure design is possible, and a pressure vessel made of FRP excellent in practicality and workability, which can be easily formed by a filament winding method. Production method.
【００４０】また、補強層５はフィラメントワインディ
ング法により配設した熱硬化性ＦＲＰを熱硬化して設け
るから、簡単に且つ的確な厚さに補強層５を設けること
ができる実用性，作業性に秀れたＦＲＰ製圧力容器の製
造方法となる。Further, since the reinforcing layer 5 is provided by thermosetting the thermosetting FRP disposed by the filament winding method, the reinforcing layer 5 can be provided simply and accurately with a practicality and workability. An excellent method for manufacturing an FRP pressure vessel.
【００４１】また、カプラ10は口補強金具８の口部14に
螺合されるから、充填容体１内を加圧したときに該カプ
ラ10が抜け出たりせず、しかも、充填容体１内を加圧す
るガスが口補強金具８の口部14から漏洩したりしない実
用性，作業性に秀れたＦＲＰ製圧力容器の製造方法とな
る。Since the coupler 10 is screwed into the opening 14 of the mouthpiece 8, the coupler 10 does not come off when the inside of the filling container 1 is pressurized. A method of manufacturing a pressure vessel made of FRP, which is excellent in practicality and workability, in which pressurized gas does not leak from the mouth portion 14 of the mouth reinforcing fitting 8.
【００４２】図３，４は第二実施例を図示したもので、
天然ガスや液化石油ガスなどの充填ガスを充填するＦＲ
Ｐ製圧力容器ａの製造方法であって、開口部２を有する
充填容体１の開口部２から補強棒４を挿入し該補強棒４
を該開口部２の反対内壁３に当接せしめて該充填容体１
内に補強棒４を架設した後、該充填容体１内を該充填容
体１外より高圧にし、この充填容体１の外周に補強層５
を設けるＦＲＰ製圧力容器の製造方法に係るものであ
る。FIGS. 3 and 4 show a second embodiment.
FR for filling gas such as natural gas or liquefied petroleum gas
A method for manufacturing a pressure vessel a made of P, wherein a reinforcing rod 4 is inserted from an opening 2 of a filling container 1 having an opening 2
Is brought into contact with the inner wall 3 opposite to the opening 2 so that the filling container 1
After the reinforcing rod 4 is erected inside the container 1, the inside of the container 1 is set to a higher pressure than the outside of the container 1.
The present invention relates to a method of manufacturing a pressure vessel made of FRP provided with the above.
【００４３】補強棒４は、特に材質が限定されるもので
はないが、補強層５として熱硬化性ＦＲＰを使用した場
合においては、熱硬化性樹脂の熱硬化温度によって変形
を生じない耐熱性の高い高強度のものを使用する。具体
的には、アルミニウム合金やステンレスなどの金属製の
ものを使用することが望ましい。The material of the reinforcing rod 4 is not particularly limited. However, when a thermosetting FRP is used as the reinforcing layer 5, a heat resistant material which does not deform due to the thermosetting temperature of the thermosetting resin is used. Use high strength ones. Specifically, it is desirable to use a metal material such as an aluminum alloy or stainless steel.
【００４４】補強棒４の先端には、該補強棒４を充填容
体１の開口部２の反対内壁３に当接せしめる当接部11が
設けられている。また、前記充填容体１の開口部２の反
対内壁３には、補強棒４の当接部11が当接される嵌合部
６として補強棒４の当接部11が嵌入される凹部６が設け
られており、当接部11と凹部６との凹凸嵌合により、補
強棒４は確実に充填容体１内に架設されることとなる。At the tip of the reinforcing rod 4, there is provided a contact portion 11 for bringing the reinforcing rod 4 into contact with the inner wall 3 opposite to the opening 2 of the filling container 1. On the inner wall 3 opposite to the opening 2 of the filling container 1, there is formed a concave portion 6 into which the contact portion 11 of the reinforcing rod 4 is fitted as a fitting portion 6 with which the contact portion 11 of the reinforcing rod 4 abuts. The reinforcing rod 4 is surely installed in the filling container 1 by the concave-convex fitting of the contact portion 11 and the concave portion 6.
【００４５】補強棒４の基部には、充填容体１の開口部
２、即ち、口補強金具８の口部14に密着状態に係合する
係合部12が設けられている。また、第二実施例では、第
一実施例においてはカプラ10が螺合された雌螺子部13を
口補強金具８の口部14に設け、補強棒４の係合部12を雄
螺子部に設けており、雌螺子部13と係合部12との螺着構
造により、補強棒４はより一層確実に充填容体１内に架
設されることとなる。The base of the reinforcing rod 4 is provided with an engaging portion 12 that is engaged with the opening 2 of the filling container 1, that is, the opening 14 of the mouth metal fitting 8 in close contact. Further, in the second embodiment, in the first embodiment, the female screw portion 13 to which the coupler 10 is screwed is provided at the mouth portion 14 of the mouth reinforcing bracket 8, and the engaging portion 12 of the reinforcing rod 4 is connected to the male screw portion. The reinforcing rod 4 is more reliably installed in the filling container 1 by the screwing structure of the female screw portion 13 and the engaging portion 12.
【００４６】この補強棒４は前記第一実施例のカプラ10
の役目も担っており、図示していないが補強棒４の基端
部の開口部を設け、該補強棒４内に前記開口部から充填
容体１内に連通可能な管部を設け、該管部に逆止弁を設
けて補強棒４の開口部から充填容体１内にガスを圧搾状
態に充填して該充填容体１内を加圧できるように設けて
いる。The reinforcing rod 4 is connected to the coupler 10 of the first embodiment.
Although not shown, an opening at the base end of the reinforcing rod 4 is provided, and a pipe portion that can communicate with the filling container 1 from the opening is provided in the reinforcing rod 4. A check valve is provided in the portion, and gas is filled into the filling container 1 from the opening of the reinforcing rod 4 in a compressed state so that the inside of the filling container 1 can be pressurized.
【００４７】以下に、第二実施例のＦＲＰ製圧力容器ａ
の製造方法について詳述する。The FRP pressure vessel a of the second embodiment is described below.
The method for manufacturing the will be described in detail.
【００４８】充填容体１は第一実施例と同様の方法によ
り形成する。The filling container 1 is formed by the same method as in the first embodiment.
【００４９】続いて、充填容体１の開口部２、即ち、口
補強金具８の口部14から補強棒４を挿入し、補強棒４の
当接部11を充填容体１の反対内壁３の凹部６に当接して
嵌合せしめる。このとき、補強棒４の基部と口補強金具
８の口部14とは螺着構造により係合されるから、補強棒
４の廻動操作により、補強棒４の当接部11を充填容体１
の凹部６に押圧状態に係止することができる。Subsequently, the reinforcing rod 4 is inserted from the opening 2 of the filling container 1, that is, the opening 14 of the mouth metal fitting 8, and the contact portion 11 of the reinforcing rod 4 is inserted into the concave portion of the inner wall 3 opposite to the filling container 1. 6 and fitted. At this time, since the base of the reinforcing rod 4 and the mouth 14 of the mouth reinforcing bracket 8 are engaged with each other by a screwing structure, the rotation of the reinforcing rod 4 causes the contact portion 11 of the reinforcing rod 4 to fill the filling container 1.
Can be locked in a depressed state in the concave portion 6.
【００５０】続いて、補強棒４の開口部から充填容体１
内にガスを充填して充填容体１内を加圧し、充填容体１
内を充填容体１外より高圧にする。Subsequently, the filling container 1 is inserted through the opening of the reinforcing rod 4.
The inside of the filling container 1 is pressurized by filling a gas therein,
The inside is made higher than the outside of the filling container 1.
【００５１】続いて、補強層５となる熱硬化性ＦＲＰを
充填容体１の外周にフィラメントワインディング法によ
り配設する。Subsequently, a thermosetting FRP to be the reinforcing layer 5 is provided on the outer periphery of the filling container 1 by a filament winding method.
【００５２】続いて、充填容体１の外周に配設した熱硬
化性ＦＲＰを加熱硬化して補強層５を設ける。Subsequently, the thermosetting FRP disposed on the outer periphery of the filling container 1 is cured by heating to provide the reinforcing layer 5.
【００５３】続いて、口補強金具８の口部14から補強棒
４を取り出し、充填容体１内のガスを抜くとＦＲＰ製圧
力容器ａが得られることとなる。Subsequently, when the reinforcing rod 4 is taken out from the mouth portion 14 of the mouth metal fitting 8 and the gas in the filling container 1 is evacuated, an FRP pressure vessel a is obtained.
【００５４】第二実施例は上述のようにするから、第一
実施例の作用効果に加えて、充填容体１内に架設した補
強棒４により、充填容体１の開口部２と反対内壁３とが
連結状態となって充填容体１の力学的強度が増し、しか
も、充填容体１の形状が充填容体１内のガスの内圧によ
り保持されることとなるから、補強層５を設けるときに
熱硬化性ＦＲＰを熱硬化しても充填容体１が変形せず、
よって、従来例及び第一実施例に比して充填容体１をよ
り一層肉薄化することができ、ＦＲＰ製圧力容器ａを軽
量化して運搬性を高めることができる実用性に秀れたＦ
ＲＰ製圧力容器の製造方法となる。Since the second embodiment is as described above, in addition to the functions and effects of the first embodiment, the opening 2 of the filling container 1 and the inner wall 3 opposite to the opening 2 of the filling container 1 are provided by the reinforcing rods 4 installed in the filling container 1. Are connected to each other to increase the mechanical strength of the filling container 1 and to maintain the shape of the filling container 1 by the internal pressure of the gas in the filling container 1. Even if thermosetting FRP, the filling container 1 does not deform,
Therefore, compared to the conventional example and the first embodiment, the filling container 1 can be further thinned, and the FRP pressure vessel a can be reduced in weight and the transportability can be improved.
This is a method for manufacturing an RP pressure vessel.
【００５５】また、充填容体１の開口部２の反対内壁３
に凹部６を設け、補強棒４の先端に当接部11を設けたか
ら、凹部６と当接部11との凹凸嵌合により補強棒４が確
実に充填容体１内に架設されることとなる実用性に秀れ
たＦＲＰ製圧力容器の製造方法となる。Also, the inner wall 3 opposite to the opening 2 of the filling container 1
Since the concave portion 6 is provided and the contact portion 11 is provided at the tip of the reinforcing rod 4, the reinforcing rod 4 is reliably installed in the filling container 1 by the concave and convex fitting of the concave portion 6 and the contact portion 11. This is a method of manufacturing a pressure vessel made of FRP with excellent practicality.
【００５６】また、口補強金具８の口部14と補強棒４の
基部とを螺着構造により係合するから、補強棒４が簡単
に且つ確実に充填容体１内に架設されることとなる実用
性に秀れたＦＲＰ製圧力容器の製造方法となる。Since the mouth 14 of the mouth metal fitting 8 and the base of the reinforcing bar 4 are engaged with each other by a screwing structure, the reinforcing bar 4 is easily and reliably installed in the filling container 1. This is a method of manufacturing a pressure vessel made of FRP with excellent practicality.
【００５７】また、その余は第一実施例と同様である。The rest is the same as in the first embodiment.
【００５８】以下に、本実施例の作用効果を裏づける実
験例を示す。The following is an experimental example which confirms the operation and effect of this embodiment.
【００５９】尚、実験例に使用した充填容体はポリエチ
レン樹脂製で、その大きさは、長さ９６０ｍｍ，直径３
８０ｍｍ，容量７６ｌである。また、充填容体にはアル
ミニウム合金製の口補強金具と底補強金具とが接合され
ている。また、補強層はエポキシ樹脂とＰＡＮ系カーボ
ン繊維（弾性率２３５ＧＰａ，強度３６３０ＭＰａ）と
から成る熱硬化性ＦＲＰを使用しており、厚さは１３ｍ
ｍである。また、補強棒はステンレス製のものを使用す
る。The filling container used in the experimental example is made of polyethylene resin, and has a size of 960 mm in length and 3 mm in diameter.
80 mm, capacity 76 l. Further, a mouth metal fitting and a bottom metal fitting made of an aluminum alloy are joined to the filling container. The reinforcing layer is made of thermosetting FRP made of epoxy resin and PAN-based carbon fiber (elastic modulus 235 GPa, strength 3630 MPa), and has a thickness of 13 m.
m. The reinforcing rod is made of stainless steel.
【００６０】＜第一実施例Ａ＞第一実施例に係るＦＲＰ
製圧力容器の製造方法により、厚さ５ｍｍの充填容体内
を１．５気圧に加圧した後、充填容体の外周にフィラメ
ントワインディング法によりＦＲＰを配設し、該ＦＲＰ
を８０℃×１２ｈ加熱して熱硬化することにより補強層
を設け、その後、カプラを取り外した。<First embodiment A> FRP according to the first embodiment
According to the method of manufacturing a pressure vessel, a 5 mm-thick filled container is pressurized to 1.5 atm, and then an FRP is disposed on the outer periphery of the filled container by a filament winding method.
Was heated at 80 ° C. for 12 h to be thermally cured to provide a reinforcing layer, and then the coupler was removed.
【００６１】＜第一実施例Ｂ＞第一実施例に係るＦＲＰ
製圧力容器の製造方法により、厚さ４．５ｍｍの充填容
体内を１．５気圧に加圧した後、充填容体の外周にフィ
ラメントワインディング法によりＦＲＰを配設し、該Ｆ
ＲＰを８０℃×１２ｈ加熱して熱硬化することにより補
強層を設け、その後、カプラを取り外した。<First embodiment B> FRP according to the first embodiment
According to the method of manufacturing a pressure vessel, a 4.5-mm-thick packed container is pressurized to 1.5 atm, and then an FRP is provided on the outer periphery of the filled container by a filament winding method.
The reinforcing layer was provided by heating the RP at 80 ° C. × 12 h and thermosetting to remove the coupler.
【００６２】＜第二実施例＞第二実施例に係るＦＲＰ製
圧力容器の製造方法により、厚さ４．５ｍｍの充填容体
内を１．５気圧に加圧した後、充填容体の外周にフィラ
メントワインディング法によりＦＲＰを配設し、該ＦＲ
Ｐを８０℃×１２ｈ加熱して熱硬化することにより補強
層を設け、その後、補強棒を取り外した。<Second Embodiment> A 4.5 mm-thick packed vessel is pressurized to 1.5 atm by the method of manufacturing an FRP pressure vessel according to the second embodiment, and then a filament is formed on the outer periphery of the filled vessel. The FRP is provided by the winding method,
The reinforcing layer was provided by heating P at 80 ° C. × 12 h and thermosetting to remove the reinforcing rod.
【００６３】＜比較例＞厚さ５ｍｍの充填容体の外周に
フィラメントワインディング法によりＦＲＰを配設し、
該ＦＲＰを８０℃×１２ｈ加熱して熱硬化することによ
り補強層を設けた。<Comparative Example> An FRP was disposed on the outer periphery of a 5-mm-thick filled container by a filament winding method.
The reinforcing layer was provided by heating the FRP at 80 ° C. × 12 h and thermosetting.
【００６４】＜従来例＞厚さ８ｍｍの充填容体の外周に
フィラメントワインディング法によりＦＲＰを配設し、
該ＦＲＰを８０℃×１２ｈ加熱して熱硬化することによ
り補強層を設けた。<Conventional Example> An FRP is disposed on the outer periphery of a filling container having a thickness of 8 mm by a filament winding method.
The reinforcing layer was provided by heating the FRP at 80 ° C. × 12 h and thermosetting.
【００６５】各例について１０個づつ製造したところ、
第一実施例Ａ，第二実施例及び従来例においては熱硬化
性ＦＲＰの熱硬化による充填容体の変形は発見されなか
ったが、第一実施例Ｂ及び比較例においては補強金具と
充填容体との接合部付近が変形し、しかも、補強金具が
脱落してしまうものが多数であった。When 10 pieces were manufactured for each example,
In the first example A, the second example, and the conventional example, no deformation of the filled container due to the thermosetting of the thermosetting FRP was found, but in the first example B and the comparative example, the reinforcing metal and the filled container In many cases, the vicinity of the joint was deformed, and the reinforcing metal fell off.
【００６６】本実験例の結果より、第一実施例に係る充
填容体内を高圧にせしめた後、該充填容体に補強層を設
けるＦＲＰ製圧力容器の製造方法は、従来例に比して肉
厚が薄い充填容体を使用しても、該充填容体に変形を発
生させずにＦＲＰ製圧力容器を製造できることが判明し
た。According to the results of this experimental example, the method of manufacturing a pressure vessel made of FRP, in which the filling container according to the first embodiment is provided with a reinforcing layer after the filling container has been subjected to a high pressure, has a greater thickness than the conventional example. It has been found that a pressure vessel made of FRP can be manufactured without using a packed container having a small thickness without deforming the packed container.
【００６７】また、第二実施例に係る充填容体内に補強
棒を架設して該充填容体を補強せしめ、更に、該充填容
体内を加圧せしめて高圧状態とした後、該充填容体に補
強層を設けるＦＲＰ製圧力容器の製造方法は、第一実施
例に比して肉厚が薄い充填容体を使用しても、該充填容
体に変形を発生させずにＦＲＰ製圧力容器を製造できる
ことが判明した。Further, a reinforcing rod is erected in the filling container according to the second embodiment to reinforce the filling container, and furthermore, the filling container is pressurized to a high pressure state, and then the filling container is reinforced. The method of manufacturing an FRP pressure vessel provided with a layer is such that even if a thinner filling vessel is used compared to the first embodiment, an FRP pressure vessel can be produced without causing deformation of the filling vessel. found.
【００６８】即ち、第一実施例及び第二実施例に係るＦ
ＲＰ製圧力容器の製造方法により、従来例に比して軽量
なＦＲＰ製圧力容器を製造し得ることとなる。That is, the F according to the first embodiment and the second embodiment
By the method of manufacturing the RP pressure vessel, a lighter FRP pressure vessel can be manufactured as compared with the conventional example.
【図１】第一実施例の説明断面図である。FIG. 1 is an explanatory sectional view of a first embodiment.
【図２】第一実施例の説明断面図である。FIG. 2 is an explanatory sectional view of the first embodiment.
【図３】第二実施例の説明断面図である。FIG. 3 is an explanatory sectional view of a second embodiment.
【図４】第二実施例の説明断面図である。FIG. 4 is an explanatory sectional view of a second embodiment.
ａ ＦＲＰ製圧力容器 １ 充填容体 ２ 開口部 ３ 反対内壁 ４ 補強棒 ５ 補強層 ６ 嵌合部 ７ 外壁面 ８ 補強金具 ９ 補強金具 10 カプラ a FRP pressure vessel 1 Filled container 2 Opening 3 Opposite inner wall 4 Reinforcement rod 5 Reinforcement layer 6 Fitting part 7 Outer wall surface 8 Reinforcement fitting 9 Reinforcement fitting 10 Coupler
Claims (10)
用のＦＲＰ製圧力容器の製造方法であって、開口部を有
する充填容体内を該充填容体外より高圧にした後、この
充填容体の外周に補強層を設けることを特徴とするＦＲ
Ｐ製圧力容器の製造方法。1. A method for manufacturing a pressure vessel made of FRP for a filling gas such as natural gas or liquefied petroleum gas, wherein the pressure inside a filling vessel having an opening is made higher than the outside of the filling vessel. FR characterized by providing a reinforcing layer on the outer periphery
Manufacturing method of P pressure vessel.
方法において、フィラメントワインディング法で補強層
を設けることを特徴とするＦＲＰ製圧力容器の製造方
法。2. The method for producing an FRP pressure vessel according to claim 1, wherein the reinforcing layer is provided by a filament winding method.
Ｐ製圧力容器の製造方法において、充填容体の外周に補
強層を設けた後、充填容体内の高圧状態を解除せしめる
ことを特徴とするＦＲＰ製圧力容器の製造方法。3. The FR according to claim 1, 2 or 3.
A method for manufacturing a pressure vessel made of FRP, comprising the steps of: providing a reinforcing layer on the outer periphery of a filled vessel; and then releasing the high pressure state in the filled vessel.
Ｐ製圧力容器の製造方法において、充填容体が熱可塑性
樹脂であることを特徴とするＦＲＰ製圧力容器の製造方
法。4. The FR according to any one of claims 1 to 3,
A method for producing a pressure vessel made of FRP, wherein the filled container is a thermoplastic resin.
Ｐ製圧力容器の製造方法において、補強層が熱硬化性Ｆ
ＲＰであることを特徴とするＦＲＰ製圧力容器の製造方
法。5. The FR according to any one of claims 1 to 4,
In the method for manufacturing a pressure vessel made of P, the reinforcing layer is made of a thermosetting F
A method for producing a pressure vessel made of FRP, which is RP.
Ｐ製圧力容器の製造方法において、充填容体の開口部に
カプラを設け、該カプラからガスを充填容体内に封入し
て充填容体内を加圧せしめることを特徴とするＦＲＰ製
圧力容器の製造方法。6. The FR according to any one of claims 1 to 5,
A method for manufacturing a pressure vessel made of FRP, comprising: providing a coupler at an opening of a filling vessel, filling a gas into the filling vessel from the coupler, and pressurizing the filling vessel. .
Ｐ製圧力容器の製造方法において、充填容体の開口部か
ら補強棒を挿入し該補強棒を該開口部の反対内壁に当接
せしめて該充填容体内に補強棒を架設した後、この充填
容体の外周に補強層を設けることを特徴とするＦＲＰ製
圧力容器の製造方法。7. The FR according to any one of claims 1 to 6,
In the method for manufacturing a pressure vessel made of P, a reinforcing rod is inserted from the opening of the filling container, the reinforcing rod is brought into contact with the inner wall opposite to the opening, and the reinforcing rod is erected in the filling container. A method for producing a pressure vessel made of FRP, comprising providing a reinforcing layer on the outer periphery of a pressure vessel.
方法において、充填容体の反対内壁に凹部を設け、補強
棒を該凹部に圧接状態に当接せしめることを特徴とする
ＦＲＰ製圧力容器の製造方法。8. The method of manufacturing a pressure vessel made of FRP according to claim 7, wherein a recess is provided on an inner wall opposite to the filling container, and a reinforcing rod is brought into contact with the recess in a pressed state. Manufacturing method.
Ｐ製圧力容器の製造方法において、充填容体の外周に補
強層を設けた後、補強棒を開口部から取り出すことを特
徴とするＦＲＰ製圧力容器の製造方法。9. The FR according to claim 7, wherein
A method of manufacturing a pressure vessel made of FRP, comprising: providing a reinforcing layer on the outer periphery of a filling container, and then taking out a reinforcing rod from an opening.
ＲＰ製圧力容器の製造方法において、補強棒からガスを
封入して充填容体内を該充填容体外より高圧にした後、
この充填容体の外周に補強層を設けることを特徴とする
ＦＲＰ製圧力容器の製造方法。10. The F according to claim 7, wherein
In the method of manufacturing a pressure vessel made of RP, after filling the gas from the reinforcing rod to increase the pressure inside the filled container from outside the filled container,
A method for producing a pressure vessel made of FRP, comprising providing a reinforcing layer on the outer periphery of the filling container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17502697A JPH1113992A (en) | 1997-06-30 | 1997-06-30 | Manufacture of frp pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17502697A JPH1113992A (en) | 1997-06-30 | 1997-06-30 | Manufacture of frp pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1113992A true JPH1113992A (en) | 1999-01-22 |
Family
ID=15988926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17502697A Pending JPH1113992A (en) | 1997-06-30 | 1997-06-30 | Manufacture of frp pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1113992A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7943884B2 (en) | 2005-03-02 | 2011-05-17 | Toyota Jidosha Kabushiki Kaisha | Gas container and method of producing the same |
| US8464893B2 (en) | 2005-06-06 | 2013-06-18 | Toyota Jidosha Kabushiki Kaisha | Pressure container and method of producing the same |
| DE102022201774A1 (en) | 2022-02-21 | 2023-08-24 | Mahle International Gmbh | Method of making a tank |
| EP4400293A1 (en) * | 2023-01-12 | 2024-07-17 | L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude | Method for producing a fibre composite tank and fibre composite tank produced by this method |
-
1997
- 1997-06-30 JP JP17502697A patent/JPH1113992A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7943884B2 (en) | 2005-03-02 | 2011-05-17 | Toyota Jidosha Kabushiki Kaisha | Gas container and method of producing the same |
| US8464893B2 (en) | 2005-06-06 | 2013-06-18 | Toyota Jidosha Kabushiki Kaisha | Pressure container and method of producing the same |
| DE102022201774A1 (en) | 2022-02-21 | 2023-08-24 | Mahle International Gmbh | Method of making a tank |
| EP4400293A1 (en) * | 2023-01-12 | 2024-07-17 | L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude | Method for producing a fibre composite tank and fibre composite tank produced by this method |
| WO2024149752A1 (en) * | 2023-01-12 | 2024-07-18 | L'air Liquide,Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude | Method for producing a fibre composite tank and fibre composite tank produced by this method |
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