Title:
IGNITION COIL FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2017/090252
Kind Code:
A1
Abstract:
An ignition coil for an internal combustion engine is provided which can effectively prevent leakage of noise and of radio waves generated by sparking. The main part of the invention is an elastic O-ring 12, which is formed from an annular elastic resin material; when using said O-ring as a fixing means, a second cap 9 (on the second electrode side) of an electric noise suppressing resistor 10 is held and the gap occurring between the inner wall of the resistor housing 4 and the second cap 9 of the electric noise suppressing resistor 10 can be closed with a simple structure. Therefore, this ignition coil is characterized in that, after fixing the electric noise suppressing resistor 10 in the resistor body housing 4 by means of the elastic O-ring 12, leakage under the resistor housing unit 4 can be prevented even if an insulation material 5 is filled evenly in the resistor housing 4.
Inventors:
IDE HIROMI (JP)
Application Number:
PCT/JP2016/004962
Publication Date:
June 01, 2017
Filing Date:
November 25, 2016
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS HANSHIN LTD (JP)
International Classes:
H01F38/12; F02P15/00
Foreign References:
| JP2012184696A | 2012-09-27 |
Other References:
See also references of EP 3382725A4
Attorney, Agent or Firm:
FUKUDA, Shinichi et al. (JP)
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