| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection device capable of securing positioning accuracy between a nozzle body and an orifice plate.SOLUTION: A fuel injection device 100 includes a nozzle body 41 having injection holes 44, an orifice plate 46 having a fuel supply passage 55 to the injection holes 44, and a guide ring 80 for positioning the nozzle body 41 and the orifice plate 46 with each other. The nozzle body 41 and the orifice plate 46 have outer periphery wall parts 41a, 46b to which the guide ring 80 is externally fitted and on which flat surfaces 42, 47 are formed to be continuous with each other, respectively. The guide ring 80 is partially ring shaped. The guide ring 80 has a first flat surface 81 facing both the flat surfaces 42, 47, and push parts 86a, 86b for pushing the outer periphery wall parts 41a, 46b toward the inner periphery side to put the flat surfaces 42, 47 in contact with the first flat surface 81.SELECTED DRAWING: Figure 9 |
