| 摘要 |
PROBLEM TO BE SOLVED: To improve heat retaining performance of a heat accumulating tank having an outer surface to which a heat insulation panel with restriction in bending radius is disposed.SOLUTION: A heat accumulating tank 10 accumulates heat of cooling water by storing the cooling water of an engine. The heat accumulating tank 10 includes: a heat insulation panel 12 of which the bending radius is restricted to be not less than an allowable bending radius; and a tank body 11 which has a tank end part 15 of which the bending radius of an outer surface 11a is smaller than the allowable bending radius, and in which the heat insulation panel 12 covers the outer surface to form abutment structure at the tank end part 15, wherein a heat insulation space is formed between the outer surface 11a and an inner surface 11b of the tank body 11 in the tank end part 15. |
