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
Steering lock driving circuit and steering lock device
Taxi cab key chain
Wireless device with extendable antenna
Laminar library screen
Pluggable power cell for an inverter
Denial of service (DoS) attack prevention through random access channel resource reallocation
Multi-level integrated circuit, device and method for modeling multi-level integrated circuits
  Randomly Featured Patents
Superconducting latch driver circuit generating sufficient output voltage and pulse-width
Semiconductor device having semiconductor-on-insulator structure
Temperature-current transducer
Databus architecture for accelerated column access in RAM
2-amino-4-bicycloamino-1,3,5-Triazines, their preparation, and their use as herbicide and plant growth regulators
Non-ferrous/ferromatic laminated graphic arts impression dies and method of producing same
Conductive paste for MLC termination
Lepidoptera bait
Petunia plant named `Petlavve`
Gear Mechanism for compound bow