Resources Contact Us Home
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
Method for preparing an organic film at the surface of solid support under non-electrochemical conditions, solid support thus obtained and preparation kit
Backlight assembly, method for driving backlight assembly, and liquid crystal display having the same
Controller for soldering iron
System and apparatus for control of published content
Selecting input/output components of a mobile terminal
System and method for data reconfiguration in an optical communication network
Illumination apparatus
  Randomly Featured Patents
Multi-functional mission grip for a vehicle
Anti-TNF alpha fibronectin type III domain based scaffold compositions, methods and uses
Synthesis of zwitterionic siloxane polymers
Quick-coupling assembly
Apparatus and method for drying an automobile chassis
Cover for portable computer
Joint structure for an blow-by gas passage
Anti-rotation spline teeth for differential case
Portable cart
Protective head sheath for golf club