Fuel injector for an internal combustion engine

In a fuel injector for an internal combustion engine comprising an injector housing including a valve element as well as a number of piezo-crystals stacked on top of one another for actuating the valve element, wherein the stack of piezo-crystals is supported by a carrier element which is disposed i...

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Bibliographische Detailangaben
1. Verfasser:	RENNER GREGOR
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:	In a fuel injector for an internal combustion engine comprising an injector housing including a valve element as well as a number of piezo-crystals stacked on top of one another for actuating the valve element, wherein the stack of piezo-crystals is supported by a carrier element which is disposed in a cavity of the injector housing in spaced relationship therefrom, a first seal is provided in a gap between the housing and the carrier element to close a fuel space in a sealed fashion and a further sealing element is located at a distance from the first seal in the gap so that a cavity is formed between the first seal and the sealing element for collecting fuel possibly leaking through the first seal.