FUEL INJECTION VALVE AND MANUFACTURING METHOD OF FUEL INJECTION VALVE

PROBLEM TO BE SOLVED: To provide a fuel injection valve capable of improving watertightness with a simple structure, and a manufacturing method of the fuel injection valve.SOLUTION: A fuel injection valve 1 is configured such that a fuel injection hole 120 is opened/closed by electrification to an actuator. The fuel injection valve includes a body 100 formed with a wire passage 10 through which a wire connected to the actuator passes, and a blockage member inserted into the wire passage 10 to block the wire passage 10. The wire passage 10 has one end opened to a side surface of the body 100, and the other end communicating with the actuator arranged on the fuel injection hole 120 side with respect to opening, and is formed with a groove 20 extending in a circumferential direction on an interface between an inner wall of the wire passage 10 and the blockage member. An end part of the groove 20 is connected to the opening.SELECTED DRAWING: Figure 2 【課題】簡易な構成により耐水性を向上することができる燃料噴射弁及び燃料噴射弁の製造方法を得る。【解決手段】アクチュエータへの通電によって燃料噴射孔１２０が開閉される燃料噴射弁１であって、アクチュエータに接続された配線が通る配線通路１０が形成された本体１００と、配線通路１０へ挿入され配線通路１０を塞ぐ閉塞部材と、を備え、配線通路１０は、一端が本体１００の側面に開口し、他端が開口よりも燃料噴射孔１２０側に配置されたアクチュエータと連通し、配線通路１０の内壁の閉塞部材との界面に、周方向に延びる溝２０が形成され、溝２０の端部が開口と繋がるものである。【選択図】図２