| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection valve that can quickly stabilize oil tightness of a valve part upon valve closing. SOLUTION: The fuel injection valve comprises a valve body 29 and 14 having a guide hole 14d, 29d, etc., a plurality of nozzle holes 28 formed at a tip end of the guide hole, and a valve seat 29a upstream the nozzle holes 28; and a valve member 26 housed for reciprocating movement in the guide hole, provided with an abutting portion 26c capable of abutting on and separating from the valve seat 29a, and closed and opened by abutment and separation of the abutting portion 26c on and from the valve seat 29a. The abutting portion 26c is a crest portion C formed on an outer circumference of the valve member 26 capable of abutting on and separating from a conical slope forming the valve seat 29a, and the crest portion C has a round chamfer Rc capable of biting a foreign mater off if clogged with any.
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