Global Patent Index - EP 2020045 A1

EP 2020045 A1 2009-02-04 - 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

EP 2020045 A1 (DE)

Application

EP 07729043 A

Priority

  • EP 2007054591 W
  • DE 102006022998 A

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 (invention and additional information)

H01L 41/053 (2006.01); F02M 51/06 (2006.01)

CPC (invention and additional information)

F02M 51/0603 (2013.01); F02M 47/027 (2013.01); F02M 63/0057 (2013.01); H01L 41/053 (2013.01); H01L 41/0533 (2013.01)

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

EPO simple patent family

DE 102006022998 A1 20071122; EP 2020045 A1 20090204; US 2009260598 A1 20091022; WO 2007131964 A1 20071122

INPADOC legal status


2010-02-17 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20090818

2009-06-10 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE ES FR GB IT

2009-05-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20090407

2009-02-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081217

2009-02-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS