Spark plug in use for an internal combustion engine

Details Spark plug in use for an internal combustion engine Spark plug in use for an internal combustion engine

1997-02-13

1998-11-03

O'Shea, Sandra L.

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

313118, 313142, 313143, H01T 1320, H01T 1300, F02M 5706, F02P 1300

Patent

active

058313770

ABSTRACT:
In a spark plug including a cylindrical metal shell whose inner wall has a ledge portion, an insulator having a seat portion which engages with a rear slope surface of the ledge portion to be supported within the metal shell, a center electrode supported with an axial bore of the insulator, and a ground electrode extended from the metal shell to form a spark gap with the center electrode. A dimensional relationship among (A), (B) and (g) is defined as follows: {(B-A)/2}.gtoreq.0.8.times.(g) or {(B-A)/2}.gtoreq.0.9.times.(g). Where B (mm) is an inner diameter of a metal shell portion which surrounds an insulator nose, A (mm) is a base diameter of the insulator nose, and g (mm) is a width dimension of the spark gap.

REFERENCES:
patent: 4122366 (1978-10-01), von Stutterheim et al.
patent: 4845400 (1989-07-01), Takamura et al.
patent: 5101135 (1992-03-01), Oshima
patent: 5159232 (1992-10-01), Sato et al.
patent: 5196760 (1993-03-01), Takamura et al.
patent: 5239225 (1993-08-01), Moriya et al.
patent: 5581145 (1996-12-01), Kato et al.

Affiliated with

Also associated with

Rating

Spark plug in use for an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spark plug in use for an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spark plug in use for an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-692955