| 摘要 |
PROBLEM TO BE SOLVED: To cool a fuel injection valve by using a feed pump of smaller delivery capacity. SOLUTION: In a fuel supply device provided with a cylinder fuel injection valve 6 provided to directly inject fuel into a combustion chamber of an internal combustion engine, a feed pump 3 supplying the cylinder fuel injection valve 6 with fuel, and a fuel supply passage extending from the feed pump to an injection hole of the cylinder fuel injection valve for supplying fuel delivered from the feed pump to the injection hole of the cylinder fuel injection valve, the fuel supply passage is formed to supply fuel to the injection hole of the cylinder fuel injection valve after fuel delivered from the feed pump is circulated in a tip zone of the cylinder fuel injection valve exposed to an inside of a combustion chamber when fuel is injected from the cylinder fuel injection valve. COPYRIGHT: (C)2006,JPO&NCIPI
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