Piezoactuator and a method for producing a piezoactuator

Details Piezoactuator and a method for producing a piezoactuator Piezoactuator and a method for producing a piezoactuator

2006-02-14

2006-02-14

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S328000, C310S346000, C310S355000

Reexamination Certificate

active

06998762

ABSTRACT:
The invention relates to a piezoactuator (1) comprising a piezoelectric body (4) and elements for pre-tensioning the piezoelectric body, consisting of a first (2) and a second (3) connecting element for transferring forces to the piezoelectric body (4). The actuator is provided with an element (6) for transferring tensile/pressure forces between the connecting elements (2, 3), said element being at least partially located in a gap (5) in the form of a bore in the piezoelectric body (4). According to the invention, the piezoactuator (1) is set to a defined working curve using the pre-tensioning elements (2, 3, 6). The piezoelectric body (4) is preferably produced by the lamination of piezoelectric layers, into which a gap is drilled after lamination and the component is subsequently sintered.

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