Spark-plug assembly for internal-combustion engine

Details Spark-plug assembly for internal-combustion engine Spark-plug assembly for internal-combustion engine

1983-10-07

1985-04-09

Cox, Ronald B.

Internal-combustion engines

Precombustion and main combustion chambers in series

Precombustion chamber assembly inserted in spark plug hole

123 26, 123263, 123256, F02B 1908

Patent

active

045094764

ABSTRACT:
A spark-plug assembly comprises a fitting mounted on the piston cylinder of an internal-combustion engine and formed with a generally closed firing chamber, at least one firing port extending between the firing chamber and the piston cylinder for fluid communication therebetween, and a storage compartment opening only into the firing chamber. The fitting being provided with a flame-blocking element or formation preventing the entrance of a flame front from the firing chamber into the storage compartment. This firing chamber is open substantially only to the storage compartment and to the piston cylinder. A spark plug has electrodes in the firing chamber. The electrodes form a spark gap lying in the firing chamber between the storage compartment and the port and the storage compartment opens only into the firing chamber.

REFERENCES:
patent: 2153598 (1939-04-01), Steward
patent: 2646782 (1953-07-01), Fisher
patent: 2708428 (1955-05-01), Fisher
patent: 2738781 (1956-03-01), Bodine
patent: 4202307 (1980-05-01), Imanura
patent: 4214567 (1980-07-01), Goto
patent: 4416228 (1983-11-01), Benedikt

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