| 摘要 |
PROBLEM TO BE SOLVED: To provide a piping structure capable of suppressing the occurrence of abnormal sounds as much as possible by easily changing the design, for instance, reducing the noise generated from various apparatus such as a reheating heating apparatus even when applied to the apparatus. SOLUTION: A bypass path 200 is connected to a pair of piping portions 110A, 110B almost perpendicularly to the piping portions. A diameter of a downstream connection portion 220 communicating with one piping portion 110B of both end sides of the bypass path 200 is set to be smaller than a reference diameter of the bypass path 200 almost equal to a diameter of an upstream connection portion 210 communicating with the other piping portion 110A. COPYRIGHT: (C)2004,JPO
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