| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device for an internal combustion engine that is constituted by communicating an internal combustion engine cooling water circulation passage with an intercooler cooling water circulation passage and that can prevent waste emission of heat of cooling water when introducing the cooling water from the internal combustion engine cooling water circulation passage to the intercooler cooling water circulation passage.SOLUTION: An internal combustion engine cooling water circulation passage 2 and an intercooler cooling water circulation passage 3 are communicated with each other by an introduction passage 4 and a recirculation passage 5. During heating of an intercooler, cooling water is introduced from the internal combustion engine cooling water circulation passage 2 via the introduction passage 4 to the intercooler cooling water circulation passage 3. The introduction passage 4 is connected to a first communication passage 3a for communicating the inflow side of the intercooler 31 and an outflow side of a low-temperature side radiator 32. A check valve 7 for inhibiting inflow of the cooling water flowing from the introduction passage 4 to the first communication passage 3a into the low-temperature side radiator 32 is provided between a connection position of the introduction passage 4 in the first communication passage 3a and the low-temperature side radiator 32.SELECTED DRAWING: Figure 1 |
