FUEL INJECTION VALVE
To provide a fuel injection valve capable of rapidly discharging abrasion powder generated between a movable core and a needle.SOLUTION: A fuel injection valve 10 includes a housing 100 having an injection hole 141 for injecting fuel, a needle 200 switching between opening and closing of the injecti...
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Main Author | |
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Format | Patent |
Language | English Japanese |
Published |
07.02.2019
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a fuel injection valve capable of rapidly discharging abrasion powder generated between a movable core and a needle.SOLUTION: A fuel injection valve 10 includes a housing 100 having an injection hole 141 for injecting fuel, a needle 200 switching between opening and closing of the injection hole 141 by being moved in the housing 100, a movable core 300 moved together with the needle 200 by receiving magnetic attraction force, and a coil 500 generating the magnetic attraction force. The needle 200 and the movable core 300 are separated from each other. A supply part for supplying the fuel to a sliding part FR is formed at least in one of the movable core 300 and the needle 200 so that the flow of the fuel is generated in the sliding part FR when the movable core 300 and the needle 200 are moved together.SELECTED DRAWING: Figure 1
【課題】可動コアとニードルとの間に生じた摩耗粉を迅速に排出することのできる燃料噴射弁、を提供する。【解決手段】燃料噴射弁10は、燃料を噴射するための噴孔141が形成されたハウジング100と、ハウジング100の内部において移動することにより、噴孔141の開閉を切り換えるニードル200と、磁気吸引力を受けてニードル200と共に移動する可動コア300と、磁気吸引力を発生させるコイル500と、を備える。ニードル200及び可動コア300は互いに分離されている。可動コア300及びニードル200が共に移動しているときに、摺動部FRにおいて燃料の流れが生じるよう、可動コア300及びニードル200のうち少なくとも一方には、摺動部FRに燃料を供給するための供給部が形成されている。【選択図】図1 |
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Bibliography: | Application Number: JP20170140092 |