Sealing arrangement of a piezoactuator in a fuel injector

A seal for a piezoactuator in a fuel injector as simply, reliably and, in respect of the useful life of the piezoactuator, as favorably as possible has a support element ( 28 ), positioned on terminal posts ( 20 ) projecting in an axial direction (A) out of the piezoactuator ( 12 ) and pressed in an...

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Bibliographische Detailangaben
1. Verfasser:	UNRUH MARCUS
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING COMBUSTION ENGINES CURRENT COLLECTORS ELECTRICITY HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING LINE CONNECTORS MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A seal for a piezoactuator in a fuel injector as simply, reliably and, in respect of the useful life of the piezoactuator, as favorably as possible has a support element ( 28 ), positioned on terminal posts ( 20 ) projecting in an axial direction (A) out of the piezoactuator ( 12 ) and pressed in an axial direction toward a top arrangement ( 14, 18 ) of the piezoactuator ( 20 ). An external sealing ring ( 36 ) is clamped along a circumferential region ( 14 ) of the top arrangement between the support element ( 28 ) and the top arrangement. Internal sealing rings ( 38 ) each enclose one of the terminal posts ( 20 ) and are each clamped between a face of the support element ( 28 ) facing radially inward and a circumferential face of the terminal post ( 20 ).