Title:
LAMINATED PIEZOELECTRIC ELEMENT, INJECTION DEVICE PROVIDED WITH SAME, AND FUEL INJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/121278
Kind Code:
A1
Abstract:
[Problem] To provide a laminated piezoelectric element wherein stress applied to an interface between a coating layer and a laminated body is reduced, an injection device that is provided with the laminated piezoelectric element, and a fuel injection system. [Solution] A laminated piezoelectric element 1 of the present invention is provided with: a laminated body 10 wherein piezoelectric layers 11 and internal electrode layers 12 are alternately laminated; and a coating layer 16 that is provided such that the coating layer surrounds the side surface of the laminated body 10. The coating layer 16 has a double layer structure wherein the boundary is annular when viewed in a cross section perpendicular to the lamination direction of the laminated body 10.
Inventors:
ASAKURA YASUHIRO (JP)
Application Number:
PCT/JP2015/085968
Publication Date:
August 04, 2016
Filing Date:
December 24, 2015
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
H01L41/053; F02M51/06; H01L41/083; H01L41/09; H01L41/23; H02N2/00
Foreign References:
| JP2010506412A | 2010-02-25 | |||
| JP2008300466A | 2008-12-11 | |||
| JP2007281256A | 2007-10-25 |
Other References:
See also references of EP 3252836A4
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