EP 2020045 A1 20090204 - ARRANGEMENT WITH A PIEZO ACTUATOR AROUND WHICH FLUID MEDIA FLOW
Title (en)
ARRANGEMENT WITH A PIEZO ACTUATOR AROUND WHICH FLUID MEDIA FLOW
Title (de)
ANORDNUNG MIT EINEM VON FLÜSSIGEN MEDIEN UMSTRÖMTEN PIEZOAKTOR
Title (fr)
SYSTÈME POURVU D'UN PIÉZOACTIONNEUR TRAVERSÉ PAR DES MILIEUX LIQUIDES
Publication
Application
Priority
- EP 2007054591 W 20070511
- DE 102006022998 A 20060517
Abstract (en)
[origin: WO2007131964A1] An arrangement with a piezo actuator (6) is disclosed, made up of a piezo element (5) with a multilayer construction of piezo layers. The piezoactuator (6) is surrounded by a chamber (14) at least surrounding the piezo layers filled with a fluid insulation medium, sealed from a fluid medium in an outer chamber (13) by means of a sleeve (15; 20) which can change shape. The sleeve (15; 20) has an elastic embodiment within given limits at least in part of the longitudinal direction thereof, seals with seal elements 816, 17) being provided at the axial ends of the sleeve (15; 20) in the region of an actuator base (7) and an actuator head (8), which, corresponding to the elasticity of the sleeve (15; 20) bring about a volume equalisation in the chamber (14) with the insulation medium by a shape and/or positional change.
IPC 8 full level
H01L 41/053 (2006.01); F02M 51/06 (2006.01)
CPC (source: EP US)
F02M 47/027 (2013.01 - EP US); F02M 51/0603 (2013.01 - EP US); F02M 63/0057 (2013.01 - EP US); H10N 30/88 (2023.02 - EP US); H10N 30/883 (2023.02 - EP US)
Citation (search report)
See references of WO 2007131964A1
Designated contracting state (EPC)
DE ES FR GB IT
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DE 102006022998 A1 20071122; EP 2020045 A1 20090204; US 2009260598 A1 20091022; WO 2007131964 A1 20071122
DOCDB simple family (application)
DE 102006022998 A 20060517; EP 07729043 A 20070511; EP 2007054591 W 20070511; US 30054807 A 20070511