High-pressure tank and method for manufacturing high-pressure tank
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKoji KATANO, Takashi USUI
Life of this patent
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Abstract
A high-pressure tank includes a reinforcing layer and a liner having a gas-barrier property and disposed on an inner surface of the reinforcing layer. The reinforcing layer includes a cylindrical reinforcing pipe having a plurality of cylindrical pipe forming portions coupled together, and a pair of semispherical reinforcing domes, one of the pair of semispherical reinforcing domes being disposed at a first end of the reinforcing pipe, and the other one of the pair of semispherical reinforcing domes being disposed at a second end of the reinforcing pipe.
Claims11
A high-pressure tank comprising:
- a reinforcing layer;
- and
- a liner having a gas-barrier property and disposed on an inner surface of the reinforcing layer, wherein the reinforcing layer includes:
- a cylindrical reinforcing pipe having a plurality of cylindrical pipe forming portions coupled together;
- and
- a pair of semispherical reinforcing domes, one of the pair of semispherical reinforcing domes being disposed at a first end of the reinforcing pipe, and the other one of the pair of semispherical reinforcing domes being disposed at a second end of the reinforcing pipe.
A method for manufacturing a high-pressure tank, the method comprising:
- causing adjacent cylindrical pipe forming portions to abut against each other;
- arranging a junction made of a material containing a reinforcing fiber and a thermoplastic resin on an outer surface at an abutment position of the adjacent pipe forming portions;
- forming a cylindrical reinforcing pipe by heating and thermocompressively bonding the junction to join the pipe forming portions;
- and
- forming a liner made of a resin and having a gas-barrier property on an inner surface of the formed reinforcing pipe.
A method for manufacturing a high-pressure tank, the method comprising:
- preparing a plurality of cylindrical pipe forming portions;
- forming, at an end of at least one pipe forming portion out of the pipe forming portions, a fitting portion having a shape in which the fitting portion protrudes toward another pipe forming portion adjacent to the at least one pipe forming portion;
- forming, at an end of the other pipe forming portion adjacent to the at least one pipe forming portion, a fitted portion having a recessed shape conforming to the shape of the fitting portion;
- forming liners each made of a resin and having a gas-barrier property on inner surfaces of the pipe forming portions;
- and
- forming a cylindrical reinforcing pipe by heating and thermocompressively bonding the liners on the pipe forming portions having the fitting portion and the fitted portion fitted together to join the pipe forming portions.
Dependencies are inferred from the claim text.