FUEL INJECTOR

The invention relates to a fuel injector (10; 10a), in particular a common rail injector, comprising a switching valve (15) for at least indirectly controlling the stroke movement of a nozzle needle (16), wherein: the switching valve (15) has a valve piece (14) having a valve seat (26); the valve pi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SOUBARI, Joachim, TUERKER, Oezguer, NIERYCHLO, Thomas, WACHTER, Philipp, FISCHER, Fabian, SCHNAUFER, Axel
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The invention relates to a fuel injector (10; 10a), in particular a common rail injector, comprising a switching valve (15) for at least indirectly controlling the stroke movement of a nozzle needle (16), wherein: the switching valve (15) has a valve piece (14) having a valve seat (26); the valve piece (14) is arranged a retaining body (12; 12a) and is clamped axially toward the retaining body (12; 12a) by means of a clamping element (42), in particular by means of a valve clamping screw; and the valve piece (14) is arranged so as to be sealed to the retaining body (12; 12a) against a high-pressure region (38) and for this purpose has a first sealing surface (53), which is formed on the valve piece (14) and radially extends around a longitudinal axis (18) of the valve piece (14) and cooperates with a second sealing surface (54; 54a).