Manufacturing method of high pressure tank
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMasayoshi TAKAMI
Life of this patent
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Abstract
A manufacturing method of a high pressure tank includes at least : shrinking a liner by cooling the liner, inserting the liner into a cylindrical member to cover a body of the liner in a shrunk state by the cylindrical member, expanding the liner in the shrunk state to fit the cylindrical member to the body by raising the temperature of the liner inserted into the cylindrical member, joining circumferential edge portions of dome members to circumferential edge portions of the cylindrical member that is fit to the body, to cover end portions by the dome members, and form a first reinforcing layer.
Claims4
A manufacturing method of a high pressure tank, where a reinforcing layer made of fiber reinforced resin is formed on an outer face of a liner that includes a body having a cylindrical shape and end portions having a domical shape and formed on respective ends of the body, the method comprising:
- preparing the liner, and a cylindrical member and two dome members that constitute the reinforcing layer;
- shrinking the liner by cooling the liner;
- inserting the liner into the cylindrical member to cover the body of the liner in a shrunk state by the cylindrical member;
- expanding the liner in the shrunk state to fit the cylindrical member to the body by raising a temperature of the liner inserted into the cylindrical member to a temperature prior to the cooling of the liner;
- and
- joining circumferential edge portions of the dome members to circumferential edge portions of the cylindrical member that is fit to the body, to cover the end portions of the liner by the dome members, and form the reinforcing layer.
Dependencies are inferred from the claim text.