| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection valve reducing a gap of a seating position of a movable member seating on a valve seat in a structure in which the movable member seats on a cone shaped valve seat. SOLUTION: The movable member 20 includes a valve member 22 and a movable core 26. A center of gravity 200 of the movable member 20 is positioned at almost same position as a locking part 24 for the movable member 20 to lock a spring 29. The movable core 26 includes a small diameter part 27, a large diameter part 28 having larger outer diameter than a small diameter part 27 in this order from the valve seat 17 side. The large diameter part 28 is provided on an opposite side of the valve seat 17 in relation to the locking part 24 of the valve member 22. The movable core 26 is supported at the large diameter part 28 by an inner circumference wall of a magnetic pipe 13. Sliding clearance between the large diameter part 28 and a magnetic pipe 13 is preferably≥10μm and≤150μm. COPYRIGHT: (C)2006,JPO&NCIPI
|
