| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of discharging foreign materials within a short running-in time when the foreign materials are contaminated into a fuel flow passage during a manufacturing process.SOLUTION: A fuel injection valve comprising a valve seat 15b and a valve body 27c for use in opening or closing a fuel passage under their cooperative relation, a movable member 27 having the valve body 27c arranged at one end thereof and formed with the fuel passage therein, a valve seat member 15, an upstream side communication hole 27boa positioned at an upstream side of fuel flow so as to communicate with the inside part and outside part of the movable member and a guide part for the valve body 27c where the valve seat member 15 and the valve body 27c are slidably contacted to each other is arranged at the downstream side of a downstream side communication hole 27bob. A fuel passage 15h communicating the upstream side and the downstream side of the guide part in a direction of the central axis line is arranged at the same angular position in the circumferential direction of the movable member 27 as that of the downstream side communication hole 27bob.SELECTED DRAWING: Figure 3 |
