Title:
【発明の名称】点火プラグキャップ構造
Document Type and Number:
Japanese Patent JP3100219
Kind Code:
B2
Abstract:
A spark plug cap having a capacitor for detecting ignition voltage of an internal combustion engine to determine if misfire occurs. The spark plug cap covers the terminal of a spark plug and has a conductor for carrying ignition voltage current from an ignition coil to spark plug terminals to generate an electronic spark between spark plug electrodes and an insulator surrounding the conductor. In the spark plug cap, a second conductor is located around the first conductor keeping a predetermined distance from the first conductor such that a capacitor, which constitutes a capacitance divider with a capacitor for ignition voltage detection, is formed between the first and the second conductors. A ceramic insulator may be positioned between the first and the second conductors to provide higher insulation property.
More Like This:
Inventors:
Yuuichi Shimazaki
Shigeru Maruyama
Masatake Kanehiro
Takashi Kuki
Shigeki Baba
Takuji Ishioka
Shigeru Maruyama
Masatake Kanehiro
Takashi Kuki
Shigeki Baba
Takuji Ishioka
Application Number:
JP5639592A
Publication Date:
October 16, 2000
Filing Date:
February 06, 1992
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F02P13/00; F02P15/00; F02P17/12; G01R15/16; H01T13/06; H01T13/40; F02P17/00; (IPC1-7): F02P17/12; F02P13/00; F02P15/00
Domestic Patent References:
| JP3105070A | ||||
| JP3163778A | ||||
| JP4826688B1 |
Attorney, Agent or Firm:
Yutaka Yoshida (1 person outside)