| 摘要 |
The invention provides the water jacket structure of an internal combustion engine, wherein the flow speed of a cooling fluid in a cooling tank between centers is improved to increase the flow quantity so as to improve the cooling performance. The water jacket structure of the internal combustion engine comprises a cylinder block (1) with a block-side water jacket (10), a cylinder head (2) with a head-side water jacket (40), and a sealing gasket (3) between the cylinder block (1) and the cylinder head (2). The block-side water jacket (10) is provided with an insertion part (11), a first flow path (15) and a second flow path (16) on the opposite side relative to the first flow path (15) through a cylinder row. A separating wall (1B) for separating adjacent cylinders (1a) is provided with an intermediate cooling tank (13) for connecting the first flow path with the second flow path. The end portion (13a) of the sealing gasket (3) is provided with an intermediate axle through-hole (33). |
