Spark-plug for automobile internal combustion engine

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

1976-09-07

1978-08-29

Myhre, Charles J.

Internal-combustion engines

Igniters

Sparkers

123169MG, 313141, 313118, F02P 100, H01T 1320, H01T 1328

Patent

active

041096339

ABSTRACT:
Improved spark-plugs for automobile internal combustion engines are made in a manner that thermal conductance (G) from flame nucleus to the electrodes is made as small as possible through decreasing of fluid resistance with respect to minute flame nucleus gas flow in the discharge, the fluid resistance being made small by making the discharge electrodes thin or making at least one of its discharge electrodes streamlined. The spark-plugs are capable of igniting and burning such lean gas mixture of 1.25 or more in excess air ratio (F). ##EQU1##

REFERENCES:
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patent: 3323911 (1967-06-01), Inoue
patent: 3603835 (1971-09-01), Eaton
patent: 3866074 (1975-02-01), Smith
patent: 3970885 (1976-07-01), Kasima
patent: 4031867 (1977-06-01), Tasuda et al.

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