Title:
IGNITION PLUG AND IGNITION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/073760
Kind Code:
A1
Abstract:
This ignition plug uses spark discharge and electromagnetic waves to carry out ignition such that wearing of electrodes can be prevented. The ignition plug comprises: a central electrode; an insulator having formed therein an axial hole whereinto the central electrode is fitted; a grounding electrode forming with the central electrode a space therebetween where the spark discharge is generated; and a cylindrical conductor provided at the outer periphery of the insulator. In the ignition plug, a pulsed voltage for the spark discharge and the electromagnetic wave supplied as energy to the spark discharge is supplied through electricity to the central electrode. On the internal peripheral surface of the cylindrical conductor, a toric member is formed at a position within a range of 1/8 the wavelength to 1/4 the wavelength of the electromagnetic wave from the end surface in the forward end portion of the cylindrical conductor.
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Inventors:
IKEDA YUJI (JP)
KANBARA SEIJI (JP)
NISHIYAMA ATSUSHI (JP)
TAKEMOTO KEISUKE (JP)
WATANABE SOUSHI (JP)
KANBARA SEIJI (JP)
NISHIYAMA ATSUSHI (JP)
TAKEMOTO KEISUKE (JP)
WATANABE SOUSHI (JP)
Application Number:
PCT/JP2016/082148
Publication Date:
May 04, 2017
Filing Date:
October 28, 2016
Export Citation:
Assignee:
IMAGINEERING INC (JP)
International Classes:
H01T13/20; F02P3/01; F02P13/00; F02P23/04; H01T13/50
Domestic Patent References:
| WO2015163366A1 | 2015-10-29 | |||
| WO2014203873A1 | 2014-12-24 |
Other References:
See also references of EP 3370313A4
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