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
Methods and apparatus for map detection with reduced complexity
Navigational cube for matching vendor offerings to service provider requirements
Nonvolatile semiconductor memory device and method for manufacturing the same
Method for drug screening and characterization by calcium flux
Masking method and apparatus
Nucleic acid sequences encoding secE/sec61-gamma subunits of protein translocation complexes
  Randomly Featured Patents
Communication system modulating/demodulating data using antenna patterns and associated methods
Method of producing diamond film for lithography
High discharge rate alkaline battery
Liquid crystal display device
Optical disk drive having optical power control
Advanced dynamic impact extension module
Permissions of objects in hosted storage
Clinical glass thermometer having a stem and a bulb integrally formed therewith
Process for surface treating thermoplastic monofilaments
Apparatus for portioning of a solid vegetable raw material