Ground electrode structure of a spark plug for a gas engine

Details Ground electrode structure of a spark plug for a gas engine Ground electrode structure of a spark plug for a gas engine

2006-12-26

2006-12-26

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

C313S118000, C313S143000

Reexamination Certificate

active

07154213

ABSTRACT:
A spark plug for a gas engine includes a ground electrode body and a center electrode body. A ground electrode of the ground electrode body is welded on a surface of a ground electrode base material opposing to the center electrode body. The ground electrode protrudes toward the center electrode body. The ground electrode is made of a material containing iridium or platinum as a main component. The ground electrode base material is made of a heat-resistant nickel alloy. The ground electrode is impacted in a recess of the ground electrode base material. The spark plug satisfies a condition 0.3≦h/H≦0.5 when H represents the thickness of the ground electrode base material in an intrusion direction of the ground electrode, and h represents an intrusion length of the ground electrode that defines a length of the ground electrode impacted in the ground electrode base material in the intrusion direction.

REFERENCES:
patent: 5877584 (1999-03-01), Kato et al.
patent: 5982080 (1999-11-01), Shibata et al.
patent: 5990602 (1999-11-01), Katoh et al.
patent: 6720716 (2004-04-01), Shibata et al.
patent: 2002/0003389 (2002-01-01), Ishiguro
patent: 2000-40577 (2000-02-01), None
patent: 2002-93547 (2002-03-01), None
patent: 2002-313523 (2002-10-01), None

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