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 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
Synthetic refrigeration oil composition for HFC applications
Three-dimensional shape data processing apparatus and three-dimensional shape data processing method
System and method for document orientation detection
Lock
Multistable electromagnetic actuators
Method to trace video content processed by a decoder
Anti-reductive high-frequency ceramic dielectric material sintered at low temperature and matched with copper internal electrode
  Randomly Featured Patents
Thermal emitted radiation detecting device
Engine oil change indicator system
Wingnut and thumbscrew fastening tool
Treating polymeric surfaces
Media independent handover protocol security
Method for fabricating complementary metal oxide semiconductor image sensor
Glass fiberization spinner
Temperature-compensated ring oscillator circuit formed on a semiconductor substrate
Method of placing concrete
Thin films measurement method and system