| 摘要 |
PROBLEM TO BE SOLVED: To provide a tank capable of maintaining a stable convection with a bubble flow.SOLUTION: A trunk part 30 mounted on a vehicle includes: a top trunk part 31; a bottom trunk part 32; and a pair of side trunk parts 33X and 33Y which are integrally formed with the top. The top trunk part 31 is formed at a top curvature Ra; the bottom trunk part 32 is formed at a bottom curvature Rb; and the side trunk parts 33X and 33Y are formed at a side curvature Rc. The top curvature Ra is arranged to be larger than the bottom curvature Rb. The side curvature Rc is formed with a one or plural curvatures. Plural air releasing openings 53 are disposed to generate a bubble flow with air bubbles floating up from the air releasing openings 53. After floating up on the surface of a liquid, the bubble flow is divided into a first bubble flow oriented to one side trunk part 33X: and a second bubble flow oriented to the other side trunk part 33Y. The flow direction of the first bubble flow X is changed to a flow oriented to the bottom trunk part 32 by the one side trunk part 33X; and the flow direction of the second bubble flow Y is changed to a flow oriented to the bottom trunk part 32 by the other side trunk part 33Y. |
