Spark plug voltage probe for use with an internal combustion eng

Details Spark plug voltage probe for use with an internal combustion eng Spark plug voltage probe for use with an internal combustion eng

1992-04-09

1994-05-31

Strecker, Gerard R.

Electricity: measuring and testing

Internal-combustion engine ignition system or device

Apparatus for coupling a measuring instrument to an ignition...

324126, 324149, 324393, F02P 1700, G01R 19165, G01R 106, G01R 1500

Patent

active

053172671

ABSTRACT:
A spark plug voltage probe detects a voltage applied to a spark plug installed in an internal combustion engine so as to analyze a burning condition in the internal combustion engine on the basis of the voltage applied to the spark plug. A rubber collar (74) is provided to surround a rubber cap (7) which is secured to a high tension terminal (71a) of the spark plug (71) so as form a static capacity between the high tension terminal (71a) and the rubber collar (74). An electrical conductor (73) is provided between the rubber cap (7) and the rubber collar (74) and is electrically connected to a microcomputer by way of an output cable (64).

REFERENCES:
patent: 2408045 (1946-09-01), Cottrell
patent: 3711767 (1973-01-01), Campbell, Jr. et al.
patent: 4041373 (1977-08-01), Maringer
patent: 4052665 (1977-10-01), Gruenwald
patent: 4349782 (1982-09-01), Doss
patent: 4783991 (1988-11-01), Wixon
patent: 5001432 (1991-03-01), Wixon

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