| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve for an injector enabling stable operation of a valve element. SOLUTION: This injector 1 includes the solenoid valve 3 in a solenoid case 15, and controls fuel injection by the solenoid valve 3. The solenoid valve 3 includes a stopper 50. The stopper 50 comprises a cylinder part 50a and a flange part 50b formed toward an outside of the cylinder part 50a. A spring chamber 14s is formed in the cylinder part 50a, a spring 16 is held therein, and a first air vent hole 51 penetrating the cylinder part 50a in a radial direction is formed. An air vent passage 52 providing communication between the first air vent hole 51 and an outer part of the solenoid 10 is provided between a lower surface of the flange part 50b put on a solenoid core 14 and an upper surface of the solenoid core 14. Communication between the spring chamber 14s and the outer part of the solenoid 10 is provided by the first air vent hole 51 and the air vent passage 52. COPYRIGHT: (C)2010,JPO&INPIT
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