Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Spark plug for internal combustion engine and method of manufacturing the same










Image Number 3 for United States Patent #8115372.

A spark plug for an internal combustion engine, includes: a cylindrical insulating body; a center electrode; a cylindrical metal shell; and a ground electrode, as defined herein, wherein the noble metal tip is bonded to the ground electrode via a molten bond, and when viewed in a cross-section including a center axis of the noble metal tip along a longitudinal direction of the ground electrode, a sum of a cross-sectional area of a base-end-side molten bond (A) positioned at a base end side of the ground electrode and a cross-sectional area of a front-end-side molten bond (B) positioned at a front end side of the ground electrode is equal to or greater than 4 mm.sup.2, and the cross-sectional area of the front-end-side molten bond (B) is 1.1 to 1.3 times greater than that of the base-end-side molten bond (A).








 
 
  Recently Added Patents
Touch screen panel
Data encoding and decoding apparatus and method thereof for verifying data integrity
Integrated analyses of breast and colorectal cancers
Adhesive structure of optical device, adhesion method, and optical pickup device
(4950
Control of protein activity using a conducting polymer
Semiconductor device, method of manufacturing semiconductor device, and electronic apparatus
  Randomly Featured Patents
Electric power steering apparatus
Primer compositions
Common rail fuel control system
System and method for actuating an engine valve
For radiant floor, wall and ceiling hydronic heating and/or cooling systems using metal plates that are heated or cooled by attached tubing that is fed hot or cold water, techniques of improvi
FM demodulator with threshold extension and receiver comprising such an FM demodulator
Odor removal system
Birdhouse
Tile assembly
Snap fastener and method of attaching same