| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of restraining a temperature rise in a fuel adding valve. SOLUTION: This fuel adding valve 11 injects fuel into an exhaust passage of an internal combustion engine, and has a fuel inflow port 42 for supplying the fuel to the fuel adding valve 11, and a fuel outflow port 43 for discharging the fuel from the fuel adding valve 11. The fuel adding valve 11 can be cooled by passing the fuel through into the fuel adding valve 11, by making the fuel flow in from the fuel inflow port 42, and making the fuel flow out of the fuel outflow port 43. COPYRIGHT: (C)2008,JPO&INPIT
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