Electricity: measuring and testing – Internal-combustion engine ignition system or device – In situ testing of spark plug
Reexamination Certificate
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.
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patent: 5801534 (1998-09-01), Hohner et al.
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Agneray Andre
Nouvel Clement
Nguyen Vincent Q
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Renault S.A.S.
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