FUEL INJECTION VALVE AND METHOD FOR ACTIVATING THE SAME

A fuel injector, particularly an injection valve for fuel-injection systems of internal combustion engines, has a first piezoelectric or magnetostrictive actuator and a valve-closure member that can be actuated by the first actuator via a valve needle. The valve closure member interacts with a valve...

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Bibliographische Detailangaben
1. Verfasser:	RUEHLE, WOLFGANG
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES ELECTRICITY 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:	A fuel injector, particularly an injection valve for fuel-injection systems of internal combustion engines, has a first piezoelectric or magnetostrictive actuator and a valve-closure member that can be actuated by the first actuator via a valve needle. The valve closure member interacts with a valve seat surface to form a sealing seat. A second piezoelectric or magnetostrictive actuator acts on the valve needle in opposition to the first actuator. In this context, the actuators are interconnected by a supporting element which is permanently mounted in the fuel injector.