HIGH-PRESSURE TANK AND MANUFACTURING METHOD THEREOF

• Main Author: ISHIKAWA YUSUKE
• Format: Patent
• Language: English; Japanese
• Published: 20.12.2022
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; STORING OF DISTRIBUTING GASES OR LIQUIDS; THERMAL INSULATION IN GENERAL; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

To provide a high-pressure tank which can reliably prevent flow-in of raw material resin into a discharge hole during manufacturing, and a manufacturing method thereof.SOLUTION: A high-pressure tank comprises a liner 10 made of resin, a mouthpiece 12 and a reinforcing layer 13 made of fiber-reinforced resin. The liner 10 defines a hollow fluid charging part. The mouthpiece 12 has a supply/discharge port 11 communicating with an internal space of the liner 10, and a flange part 12b hanging to a radially outer side from a peripheral area of the supply/discharge port 11 and abutting on the liner 10. The reinforcing layer 13 is coated across the liner 10 and an outer peripheral face of the flange part 12b. The mouthpiece 12 has a discharge hole 17 for providing communication a clearance between the flange part 12b and abutment faces 12bs, 14s of the liner 10, and the inside of the supply/discharge port 11. A capturing groove 19 surrounding a peripheral area of the discharge hole 17 is formed in least at either of the abutment face 12bs on the flange part 12b side and the abutment face 14s on the liner 10 side.SELECTED DRAWING: Figure 2 【課題】製造時における排出孔への母材樹脂の流入を確実に防止することができる高圧タンク、及び、その製造方法を提供する。【解決手段】高圧タンクは、樹脂製のライナ１０と、口金１２と、繊維強化樹脂製の補強層１３と、を備える。ライナ１０は中空状の流体充填部を構成する。口金１２はライナ１０の内部空間と連通する給排口１１と、給排口１１の周域から径方向外側に張り出しライナ１０に突き合わせられるフランジ部１２ｂを有する。補強層１３は、ライナ１０とフランジ部１２ｂの外周面に跨って被着される。口金１２には、フランジ部１２ｂとライナ１０の突合せ面１２ｂｓ，１４ｓの間と、給排口１１の内部とを連通する排出孔１７が設けられている。フランジ部１２ｂの側の突合せ面１２ｂｓとライナ１０の側の突合せ面１４ｓの少なくともいずれか一方には、排出孔１７の周域を取り囲む捕捉溝１９が設けられている。【選択図】図２