| 摘要 |
PROBLEM TO BE SOLVED: To prevent degradation of durability of a housing for housing a heat exchanging part. SOLUTION: Fuel injected to a fuel injecting part 7 from a fuel injecting pipe 39 exchanges heat with combustion gas supplied in a direction orthogonal to a paper surface to a core part 5 in the figure 1 in the core part 5, evaporates, and is discharged from a steam discharge pipe 41 through a steam collecting part 9 to an outside. The heat exchanging part 1 comprising the fuel injecting part 7, the core part 5, and the steam collecting part 9 is fixed on a side wall plate 37, and three side surfaces excluding an inlet part and an outlet part of the combustion gas and the fixing part are covered with the housing main body 43. A heat resistant filling material 45 is interposed between the housing main body 43 and the heat exchanging part 1, and deformation of upper and lower surfaces 43b, 43c of the housing main body 43 through the heat resistant filling material 45 caused by heat expansion deformation of the core part 1 is prevented by a heat deformation absorbing part 47 formed by folding a junction of a collar part 43a of the housing main body 43 and an end edge part 37a of the side wall part 37. COPYRIGHT: (C)2003,JPO
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