| 摘要 |
A magneto-striction element 7 is inserted and held by an element holder assembly 6 . A flange 13 at the upper end of the element holder assembly 6 is positioned on a main unit case 1 of the fuel injection valve 6 as a fixed end and the lower end of the element holder assembly 6 is set as a free end which can expand and contract vertically. An inward opening specification is used that when the magneto-striction element 7 expands, the plunger 13 is pulled upward in the injection valve in the opposite direction of the combustion chamber side and from the gap between a nozzle sheet 3 arranged on the combustion chamber side and the front end of the plunger 13 , fuel is injected.
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