Resources Contact Us Home
Spark plug for internal combustion engine and method for manufacturing spark plug

Image Number 10 for United States Patent #8120235.

A spark plug including a center electrode and a ground electrode. A center electrode noble metal tip is joined to a leading end portion of a center electrode, and a ground electrode noble metal tip is joined to a center-electrode-side side surface of the ground electrode. A distal end portion of the ground electrode noble metal tip protrudes from a distal-end surface of the ground electrode by 0.1 mm to 1.5 mm. A center-electrode-side side surface of the ground electrode noble metal tip projects from a center-electrode-side side surface by 0.15 mm to 0.6 mm. The ground electrode includes chamfered portions. Thickness lengths and widthwise lengths of the respective chamfered portions achieved within a cross section perpendicular to a center axis of the ground electrode are set to 0.2 mm or more.

  Recently Added Patents
Selection of a suitable node to host a virtual machine in an environment containing a large number of nodes
Rotating-body electrification mechanism, image carrier unit, process cartridge, image forming apparatus, and method for electrifying image carrier unit
Block copolymer nanoparticle compositions
Formulations, their use as or for producing dishwashing detergents and their production
Pyridazine compounds for controlling invertebrate pests
System and method for managing content on a network interface
Systems and method for automatic color plane misregistration calibration
  Randomly Featured Patents
Float collar and method
Brain-pO.sub.2 measuring device
Contoured bed sheet
Electrically heated surgical blade and methods of making
Magnetic curve having an improved detachable structure
Immunosuppressive effects of pteridine derivatives
Cutting tool and cutting method
Method of treating cationic dyeable nylon fibers to inhibit cold water bleed
Process of making mixed metal oxide catalysts for the production of unsaturated aldehydes from olefins
Semiconductor laser module