| 摘要 |
PURPOSE:To well operate a valve without applying high accurate machining work for its valve body and related parts, by forming the periphery of the valve body to spherical ball shape and surely opening and closing a valve seat. CONSTITUTION:A chamber 19 is formed to one side of coil assembly units 12, 13, 14 in the inside of injection valve main units 10, 11. An injection passage 24, guided to a jet hole 25, is opened to said chamber 19, and this opening is opened and closed by a valve body 16, attached to and separated from a valve seat 23, further the valve body 16 is formed to almost ball shape, provided with a spherical peripheral surface 16a, and the valve seat can be surely opened and closed even if the valve body 16 is tilted for the valve body 23. In this way, the valve body 16 is only required for machining the peripheral surface 16a to a certain level of accuracy, then fuel can be surely injected and stopped. |
