Hydrogen supply piping and method of manufacturing hydrogen supply piping
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMasahiro TAKESHITA
Life of this patent
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Abstract
There is provided a hydrogen supply piping for supplying hydrogen to a fuel cell, the hydrogen supply piping includes a flow path pipe member through which the hydrogen flows, and a coating member having a tube shape for covering an outer surface of the flow path pipe member. The coating member is divided into a plurality of divided pieces in pipe axis directions of the hydrogen supply piping. The divided pieces are disposed in the pipe axis directions so that an end of one of the divided pieces overlaps with an end of the adjacent divided piece. The divided pieces are wrapped tightly around an outer surface of the flow path pipe member by thermal contraction.
Claims5
A hydrogen supply piping for supplying hydrogen to a fuel cell, comprising:
- a flow path pipe member through which the hydrogen flows;
- and
- a coating member having a tube shape for covering an outer surface of the flow path pipe member, the coating member being divided into a plurality of divided pieces in pipe axis directions of the hydrogen supply piping, the divided pieces being disposed in the pipe axis directions so that an end of one of the divided pieces overlaps with an end of the adjacent divided piece, and the divided pieces being wrapped tightly around an outer surface of the flow path pipe member by thermal contraction.
A method of manufacturing a hydrogen supply piping for supplying hydrogen to a fuel cell, comprising:
- providing a flow path pipe member through which the hydrogen flows;
- bending the flow path pipe member;
- attaching a plurality of divided pieces, that is obtained by dividing a heat-shrinkable coating member having a tube shape, sequentially to the bent flow path pipe member;
- and
- thermally contracting the plurality of divided pieces attached to the flow path pipe member to wrap the plurality of divided pieces tightly around an outer surface of the flow path pipe member.
Dependencies are inferred from the claim text.