| 摘要 |
PURPOSE:To effectively avoid the diesel knock in low speed and low load by supplying the coolant vapor supplied from a boiling cooling apparatus into a heating chamber in low speed and low loading and heating the intake by the coolant vapor having the high heat radiation performance and high temperature. CONSTITUTION:A heating chamber 64 having a circular section is formed midway in a bypass passage 60 which detours a condenser 23, and heat exchange with the intake in an intake pipe 61 is performed. A switching means is constituted of a control unit 50 and a solenoid valve 70. Since the bypass passage 60 is allowed to communicate by the valve opening of the solenoid valve 70 in low- speed and low-load, the coolant vapor in a gaseous space 22a is supplied into the heating chamber 64 through the bypass passage 60. Then, the intake gas is heated by the coolant vapor which has high heat radiation performance and high temperature, and the diesel knock in low-speed and low-load can be effectively avoided. |
