Spark plug for externally ignited internal combustion engine

Details Spark plug for externally ignited internal combustion engine Spark plug for externally ignited internal combustion engine

1984-01-30

1985-10-22

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

123169MG, 123144, 313123, 313124, 313142, 315 59, H01J 744, H01J 1346, H01J 1978, H01J 2996

Patent

active

045491143

ABSTRACT:
To increase the spark intensity delivered from a spark plug, an auxiliary spark gap (33) is serially connected with an auxiliary capacitor (37) and the main spark gap (42), the auxiliary capacitor being charged through a charging circuit including a resistor (45) connected in shunt to the auxiliary spark gap (33) and the auxiliary capacitor, and a further or second resistor (46) connected in shunt across the auxiliary capacitor and the ground or chassis electrode (15), and a shunt capacitor (51) is connected between the main spark plug terminal (27) and the ground or chassis or counter electrode (11, 15) so that, upon breakdown of the auxiliary spark gap, the main spark gap will have a voltage thereacross formed by the charge voltage of the main or shunt capacitor (51) and the additional voltage on the auxiliary capacitor (37) which had been charged through the resistors connected across the auxiliary capacitor and to the main spark plug terminal (27) and the ground terminal or electrode (15) respectively.

REFERENCES:
patent: 2376362 (1945-05-01), Kasarjian
patent: 3267325 (1966-08-01), Why
patent: 3353052 (1967-11-01), Barry
patent: 4020388 (1977-04-01), Pratt, Jr.

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