| 摘要 |
PURPOSE:To stabilize the fuel injection performance by preventing the inclination of a valve body and a movable core in an electro-magnetic fuel injection valve automatically and preventing the shoulder section of the movable core from contacting against a fixed core thus seating correctly. CONSTITUTION:When a valve body 16 will seat while inclining at the nonconducting time of an electromagnetic coil 12, the central point A of the pressing of a spring 26 is lower than the center of curvature (c) to produce the moment around the center C by the pressing force Fs to be applied on the point A thus to rotate a valve body 16 in the arrow direction and to correct the inclination of the valve body 16. When the power is supplied to the coil 12 to adsorb the movable core 15 to the fixed cores 13, 14 and contact against it while inclining, the pressing force FS of the spring to be applied on the functioning point A of the spring 26 will provide the moment around the center of gravity G thus to rotate the valve body 16 in the arrow direction. Consequently the inclination of the movable core 15 is corrected thereby the shoulder section 15 is prevented from contacting against the fixed cores 14, 15. |
