FUEL INJECTION VALVE

PROBLEM TO BE SOLVED: To provide a fuel injection valve whereby strain during welding can be reduced, nonuniformity in a stroke rate can be reduced, and as a result, flow rate nonuniformity in fuel to be injected can be reduced.SOLUTION: The fuel injection valve includes: a nozzle 101; a stationary...

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Bibliographische Detailangaben
Hauptverfasser:	NAMAIZAWA YASUO, TAKAOKU JUNJI, EBARA HIDEJI, SOMA MASAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fuel injection valve whereby strain during welding can be reduced, nonuniformity in a stroke rate can be reduced, and as a result, flow rate nonuniformity in fuel to be injected can be reduced.SOLUTION: The fuel injection valve includes: a nozzle 101; a stationary valve 116 which is press-fitted into the tip of the nozzle 101 and has a fuel injection hole 116A whereby the fuel is injected; and a needle 114 which comes into contact with the stationary valve 116, thereby, forms a fuel seal part and opens and closes the fuel injection hole 116A. The stationary valve 116 and the nozzle 116 are fixed by welding at a position having no gap due to press-fitting. A groove 301 serving as an empty space is provided continuously to a welded part formed in the stationary valve 116 and the nozzle 101 by welding.