Method for measuring an ionization current of a spark plug...

Details Method for measuring an ionization current of a spark plug... Method for measuring an ionization current of a spark plug...

2007-03-09

2011-10-18

Nguyen, Vincent Q (Department: 2858)

Electricity: measuring and testing

Internal-combustion engine ignition system or device

In situ testing of spark plug

C324S384000

Reexamination Certificate

active

08040137

ABSTRACT:
A device for measuring an ionization current of a spark plug of a type with a resonant structure, including a motor vehicle ignition system, the spark plug being coupled to a generator including a regulating capacitor. The generator includes a polarizer that polarizes the spark plug, connected between the generator and the spark plug, and a device that measures ionization current of the spark plug, connected between the regulating capacitor and ground.

REFERENCES:
patent: 5801534 (1998-09-01), Hohner et al.
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patent: 19524539 (1996-11-01), None
patent: 1991 2376 (2000-09-01), None
patent: 10350850 (2004-05-01), None
patent: 0825343 (1998-02-01), None

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