Patent ID: 9523342
Filing Date: 2016-12-20
CPC Classification: F01L,F02B,F02P,H01T,Y02T

Claim Text:
1. An ignition device for a spark ignition type internal combustion engine, comprising: an ignition plug; and a transmission antenna that is provided in the vicinity of the ignition plug and is adapted to transmit an electromagnetic wave into a combustion chamber, wherein the ignition device allows a spark discharge generated between a central electrode and a ground electrode of the ignition plug to react with an electric field created via the transmission antenna in the combustion chamber so as to generate plasma and thus ignite fuel air mixture, the ignition device further comprises a receiving antenna arranged on a combustion chamber-facing surface of at least one of an intake valve and an exhaust valve, and is adapted to receive the electromagnetic wave transmitted from the transmission antenna, and an axial direction of the receiving antenna is oriented toward an extension line axially extended from the central electrode of the ignition plug.