公开(公告)号：EP2889469A4

公开(公告)日：2016-06-01

申请号：EP13806666

申请日：2013-06-17

Applicant: IMAGINEERING INC

Inventor： IKEDA YUJI ,  TSURUOKA RYOUJI

IPC: F02P3/01 ,  H01Q1/40 ,  H01Q9/30 ,  H01Q19/10

CPC classification number: H05H1/46 ,  F02P3/0407 ,  F02P7/03 ,  F02P9/007 ,  F02P15/04 ,  F02P15/08 ,  F02P23/045 ,  H01Q1/3291 ,  H01Q1/40 ,  H01Q9/30 ,  H05H1/52 ,  H05H2001/463

Abstract: The present invention aims at providing an antenna structure that is not susceptible to erosion and degradation caused by high frequency wave emission and is capable of efficiently emitting high frequency wave energy in accordance with a flowing flame, and an internal combustion engine including the antenna structure and an ignition device. The internal combustion engine according to the present invention includes an antenna structure including a high frequency wave transmission line that transmits a high frequency wave and an emission antenna part for emitting the high frequency wave supplied via the high frequency wave transmission line. The emission antenna part includes a metal antenna having a rod-like shape and a ceramic layer that covers at least a part of the metal antenna.