Resources Contact Us Home
Spark plug for an internal combustion engine

Image Number 5 for United States Patent #6794803.

At least one of a center electrode and a ground electrode of an engine spark plug is a Ni-base alloy containing, in weight percentage, 0.5.about.2.5% Si, 0.1.about.1.2% Mn, 3.2.about.5.0% Al, 0.9.about.2.8% Cr, 0.001.about.0.025% C in addition to Ni and unavoidable impurities. And, a value S/V is in a range from 1.7 mm.sup.-1 to 3.9 mm.sup.-1 when `S` represents a surface area of the ground electrode and `V` represents a volume of the ground electrode.

  Recently Added Patents
Optical switching device and communications system
Waterproof wound protector
Electronic multiparty accounts receivable and accounts payable system
Illuminating waveguide fabrication method
Image forming apparatus and method of translating virtual memory address into physical memory address
Automatic portable electronic device configuration
High surface area composition for use in the catalytic hydroconversion of a heavy hydrocarbon feedstock, a method making such composition and its use
  Randomly Featured Patents
Method and apparatus for regulating fluid flow or conserving fluid flow
Set top box
Self sealing dispenser pack for pre-moistened towelettes
Liquid gauging apparatus with a magnetoresistive sensor and remote sensor interrogration
Active/stable artificial tanning compositions comprising DHA derivatives
Selective leaching of chloride from copper oxide minerals
Cable modem map display for network management of a cable data delivery system
Method and apparatus of managing entitlement management message for supporting mobility of DCAS host
Adjustment of temporal acoustical characteristics