Fuel injection valve

The objective of the present invention is to realize the structure, of a fuel injection valve, in which bouncing of the needle can be suppressed and the armature position can be fixed while the valve is closed, without increasing the number of components and the number of processes. In a fuel inject...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHINGU AKIO, MUNEZANE TSUYOSHI, AOTA MASAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING NOZZLES PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The objective of the present invention is to realize the structure, of a fuel injection valve, in which bouncing of the needle can be suppressed and the armature position can be fixed while the valve is closed, without increasing the number of components and the number of processes. In a fuel injection valve including an armature that is repelled or attracted by a core, by de-energizing or energizing a coil, a needle that opens or closes a valve seat in accordance with a reciprocal travel of the armature, and a valve-closing spring that biases the needle so as to close the valve, when the coil is de-energized, the valve-closing spring is disposed on the armature, and the needle and the armature are fixed in such a way that the armature can travel in an axis direction by a predetermined amount with respect to the needle.