| 摘要 |
PROBLEM TO BE SOLVED: To process fuel remaining in a volume space between a needle valve and an injection hole after fuel injection without lowering the operating performance of an internal combustion engine and deteriorating the emission of exhaust gas. SOLUTION: This fuel injection valve for the internal combustion engine comprises an injection hole group 6 having a plurality of injection holes and a sack part 7 allowed to communicate with the injection hole group 6. When fuel is injected, all injection holes of the injection hole group are opened simultaneously, and the fuel in the sack part 7 is concurrently injected from all the injection holes of the injection hole group 6 and, when the fuel injection is stopped, the fuel remains in the sack part 7. When the fuel is not injected, a part of the injection holes 12 of the injection hole group 6 are opened to the sack part, and the remaining injection holes of the injection hole group 6 are closed. The closed injection holes 12 function as discharge injection holes 12 for discharging the fuel from the sack part 7. |
