Piezoceramic bending transducer and use thereof
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United States of America Patent
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Jul 13, 2004
Grant Date -
Apr 24, 2003
app pub date -
Oct 10, 2002
filing date -
Apr 10, 2000
priority date (Note) -
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Abstract
A piezoelectric bending transducer includes a support body, a stack of piezo-ceramic layers, arranged thereon and flat electrodes arranged between the layers. On the side of the support body facing the stack, an adaptation layer is arranged with essentially the same coefficient of expansion as the piezo-ceramic. The bending transducer displays a good actuating power and a low thermal natural distortion with economical production costs. The transducer is particularly suitable for application in a valve.
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