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The invention relates to a piezoelectric or magnetostrictive actuator element (2), which is supported against a housing (4) by means of a head assembly (6, 8, 10). Said assembly (6, 8, 10) is configured in several parts, in such a way that an inhomogeneous material structure is formed. An intermedia...

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Bibliographische Detailangaben
1. Verfasser:	SCHUERZ, WILLIBALD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS COMBUSTION ENGINES CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DEVICES FOR VENTING OR AERATING ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a piezoelectric or magnetostrictive actuator element (2), which is supported against a housing (4) by means of a head assembly (6, 8, 10). Said assembly (6, 8, 10) is configured in several parts, in such a way that an inhomogeneous material structure is formed. An intermediate layer (12) consisting of isolation material, for example, sintered metallic foam, ceramics or fibre-reinforced plastic, is provided between a first part (6) and a second part (8). In one embodiment, isolation material is provided in bores (14) in the head assembly (10). The inhomogeneous structure restricts the transmission of sound.