| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laminated piezoelectric element that prevents corrosion of a metallization layer by condensation and maintains stable displacements, and to provide an injection device and a fuel injection system having the same. <P>SOLUTION: A laminated piezoelectric element 1 includes: a laminate 7 where piezoelectric bodies 3 and internal electrodes 5 are laminated; a metallization layer 8 that is provided on a side surface of the laminate 7 and is electrically connected to the internal electrodes 5; and an external electrode 6 that is joined to the metallization layer 8. The external electrode 6 has an extended portion 61 that extends at least partially off the metallization layer 8. <P>COPYRIGHT: (C)2012,JPO&INPIT |
