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
Vehicle tail lamp
Process for recovering and recycling an acid catalyst
Utility knife
Superagonistic anti-CD28 antibodies
Adhering composition and method of applying the same
Efficient implementation of hash algorithm on a processor
  Randomly Featured Patents
Computer readable program code implementing modeling of a system comprising at least a linear motor and a block switching controller
Inspection apparatus having a heating mechanism for performing sample temperature regulation
Implement and assembly for carrying out operations on an agricultural land
Substituted vinyl cephalosporins
Front bumper for an automobile
Vehicle seat assembly with spaced air bag guide retainers
Method for producing a steel sheet or strip for making a can, and steel sheet or strip obtained by said process
Separation and recovery of cobalt and nickel from aqueous solutions thereof