Fuel injector for an internal combustion engine

In the case of a fuel injector comprising an injector housing arrangement (44, 46) which accommodates a piezo-drive, whereby the piezo-drive has a piezo-actuator which is accommodated in a piezo-housing arrangement that has a cover arrangement (12, 14) provided with openings (16) for the penetration...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	UNRUH MARCUS
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:	In the case of a fuel injector comprising an injector housing arrangement (44, 46) which accommodates a piezo-drive, whereby the piezo-drive has a piezo-actuator which is accommodated in a piezo-housing arrangement that has a cover arrangement (12, 14) provided with openings (16) for the penetration of protruding terminal pins (10) of the piezo-actuator, the following is provided: a sealing arrangement comprising a sealing element (24) formed from a liquid-tight material, the sealing element, on the one hand, fitting tightly against the circumferential areas of the terminal pins (10) and, on the other hand, tightly against the cover arrangement (12, 14), and a ventilation arrangement (40, 42) that promotes an exchange of gas between the outside of the injector housing arrangement (44, 46) and the outside of the sealing element (24).