| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the occurrence of failure due to a difference between a spray reaching distance of fuel injected from each nozzle hole and a distance from each nozzle hole up to an intake port or a combustion chamber in a fuel injection valve provided with the plurality of nozzle holes to differentiate an injecting direction of fuel from each nozzle hole. <P>SOLUTION: This fuel injection valve 1 includes: a needle valve element 3 to be a valve element which is capable of advancing and retreating between a valve closing position S and a full opening position O; and a nozzle body including a valve seat 5 for storing the needle valve element 3 in a state in which the needle valve element 3 is capable of advancing and retreating at the inside and seating the needle valve element 3 located at the valve closing position S, including the plurality of nozzle holes at a distal end and forming a suck portion 7 between the needle valve element 3 and the nozzle holes. In the fuel injection valve, a high pressure region 7a at high fuel pressure and a low pressure region 7b at low fuel pressure are provided, the second nozzle hole 6b communicated with the high pressure region 7a is directed in an axial center 1a direction, and the first nozzle hole 6a communicated with the low pressure region 7b is directed in a direction other than the axial center 1a direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
