Multi-layer piezoelectric element and injection apparatus using the same

A multi-layer piezoelectric element and an injection apparatus using the same are provided. The piezoelectric element comprises a stack (10) having a plurality of piezoelectric layers (1) and a plurality of inner electrodes (12), the piezoelectric layers and the inner electrodes being stacked altern...

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Bibliographic Details
Main Authors NAGASAKI, KOICHI, NAKAMURA, SHIGENOBU, ONO, SUSUMU, KATO, TAKESHI
Format Patent
LanguageEnglish
French
German
Published 01.05.2013
Subjects
BLASTING
COMBUSTION ENGINES
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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Summary:A multi-layer piezoelectric element and an injection apparatus using the same are provided. The piezoelectric element comprises a stack (10) having a plurality of piezoelectric layers (1) and a plurality of inner electrodes (12), the piezoelectric layers and the inner electrodes being stacked alternately one on another, and a pair of external electrodes (15) formed on side faces of the stack, wherein an isolated section (16), of which thickness gradually decreases toward the periphery and which is separated from the side face of the stack, is formed in a peripheral portion (15a) of the external electrode.
Bibliography:Application Number: EP20130152676