| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger in which a heat exchange efficiency is remarkably increased by satisfactorily joining a metal porous member to a metal flat plate. SOLUTION: This heat exchanger comprises an exhaust gas pipe 41, a cylindrical body 42 forming a partition wall 2 formed of a metal plate forming a fluid passage 7 disposed in the exhaust gas pipe 41, an inlet pipe 8 for leading natural gas therein passing through the exhaust gas pipe 41 and installed in the cylindrical body 42 and an outlet pipe 9 for feeding natural gas, metal porous members 3 with open pores disposed in the cylindrical body 42, and fins 4 formed of metal porous members 3 vertically installed on the outer peripheral surface of the cylindrical body 42. The metal porous members 3 are diffusively joined to the inner wall surface of the tube body 42, a metal flat plate 10 forming the partition wall 2 is longitudinally extended in the cylindrical body 42, and the metal flat plate 10 is diffusively joined to the metal porous members 3. COPYRIGHT: (C)2003,JPO
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