Resources Contact Us Home
Spark plug for internal combustion engine and method of manufacturing the same

Image Number 5 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
Systems and methods for adaptive blind mode equalization
Pet burial pod
Semiconductor device and method of forming discontinuous ESD protection layers between semiconductor die
Multi-user remote health monitoring system with biometrics support
Portable multimedia player
Light source lighting device including a constant-current supply that is connected to a light source and supplies a constant current of a substantially constant magnitude to the light source,
Inductive signal transfer system for computing devices
  Randomly Featured Patents
Negative electrode for lithium secondary cell and lithium secondary cell
High visibility detached safety sleeve and method of manufacture
Gel mouse
Encoding device and method, decoding device and method, providing medium, and method for generating data substitution position information
Stretchable composite sheet and process for forming the same with a plurality of gathers
Downstream finned shroud airstream conditioning apparatus for a data storage device
Semiconductor switch driving circuit
Bonding method and apparatus
Dual-envelope making machine and method of using
Method and system for maintaining originality-related information about elements in an editable object