| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for easily producing a double tube with a curved part, which has an inner tube and an outer tube, wherein a fluid can be made to flow to a gap between the inner tube and outer tube, and to the hollow of the inner tube. SOLUTION: The outer circumferential face of an inner tube is brought into contact with wire, thereafter, the inner tube brought into contact with the wire is inserted into the hollow of the outer tube, so as to form the double tube, and the double tube is subjected to bending, In only such a manner, the double tube with a curved part, which has an inner tube and an outer tube, wherein a fluid can be made to flow to a gap between the inner tube and outer tube, and to the hollow of the inner tube, can easily be produced, wherein when the inner tube is brought into contact with the wire, the wire is not made to cross each other. COPYRIGHT: (C)2008,JPO&INPIT
|
