Title:
LAMINATED PIEZOELECTRIC ELEMENT, AND JETTING DEVICE AND FUEL JETTING SYSTEM PROVIDED WITH THE LAMINATED PIEZOELECTRIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2012/011302
Kind Code:
A1
Abstract:
[Problem] To provide a laminated piezoelectric element wherein generation of electric discharge from the surface of a ceramic coat layer due to generation of cracks in a ceramic coat layer portion facing an inner electrode layer end portion is suppressed, and to provide a jetting device and a fuel jetting system, which are provided with the laminated piezoelectric element.
[Solution] A laminated piezoelectric element of the present invention includes: a laminated body (7) wherein piezoelectric layers (2) and inner electrode layers (3) are laminated; an external electrode (6), which is connected to the side surface of the laminated body (7), and which is electrically connected to the inner electrode layer; and ceramic coat layers (5) which are adhered to the side surfaces of the laminated body (7). The laminated piezoelectric element is characterized in that the laminated body (7) is provided with a porous layer (4).
Inventors:
NAKAMURA,Shigenobu (Kagoshima Kokubu Plant 1-1, Kokubuyamashita-cho, Kirishima-sh, Kagoshima 96, 〒8994396, JP)
Application Number:
JP2011/057281
Publication Date:
January 26, 2012
Filing Date:
March 25, 2011
Export Citation:
Assignee:
KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 〒6128501, JP)
京セラ株式会社 (〒01 京都府京都市伏見区竹田鳥羽殿町６番地 Kyoto, 〒6128501, JP)
京セラ株式会社 (〒01 京都府京都市伏見区竹田鳥羽殿町６番地 Kyoto, 〒6128501, JP)
International Classes:
H01L41/083; F02M51/00; F02M51/06; H01L41/08; H01L41/107; H01L41/187; H01L41/22; H01L41/24
Claims: