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
Multiple secure elements in mobile electronic device with near field communication capability
Measurement of an analyte on the skin using a hue angle
Conductor-mixed active electrode material, electrode structure, rechargeable battery, and manufacturing method of conductor-mixed active electrode material
Semiconductor assembly and semiconductor package including a solder channel
Circuitry testing module and circuitry testing device
Optimized delivery of web application code
Image processing apparatus and image processing method
  Randomly Featured Patents
Chair
Inspection reporting including a 3D vehicle model
Utility knife handle
Hermetic seal on metallized fiber optics
Roling bearing
Quadrature output oscillator device
Curb forming machine
Scaling and truncating in a receiver for coded digital data symbols
Reconfigure lock for dual detector gamma camera
Package of shirred food casing and method