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
Light emitted diode
Split-ring resonator creating a photonic metamaterial
Heat retaining device
Image heating apparatus
Vanadium, cobalt and strontium additives for use in aluminum back solar cell contacts
Apparatus and method for image encoding/decoding using predictability of intra-prediction mode
Semiconductor device element formed on SOI substrate comprising a hollow region, and having capacitors in an electric field alleviation region
  Randomly Featured Patents
Process for making optically active .alpha.-amino ketones
Audio amplifier faceplate
Multiphase oil continuous flavor and ingredient delivery system
Fishing reel
Extracting power from a fluid flow
Process for producing pressure sensors
Fabric softening compounds and method
Temperature measuring method and apparatus
Magnetic suspension for a vehicle
Device and method for depositing a filamentary strand