Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for measuring component of a gaseous emission










Image Number 13 for United States Patent #6454931.

A modified universal exhaust gas oxygen sensor, referred to herein as a CEGA sensor, is provided which can be used to measure the concentration of a variety of components of a gaseous fuel emission including CO, CO.sub.2, O.sub.2, H.sub.2, and H.sub.2 O. The CEGA sensor-employs at least one additional electrode on a ceramic substrate which possess a different catalytic activity relative to the electrodes that normally found on a UEGO sensor. The ceramic substrate may be made of any suitable ceramic and is preferably made of zirconia. The difference in catalytic activity between the additional electrode(s) and the electrodes native to the UEGO sensor create an oxygen gradient which enables a measure of combustion completeness to be calculated. In combination with an air/fuel ratio measured by the sensor, the concentrations of different components in the emission can be calculated. Several methods, devices and systems which can be used with various types of ceramic sensors including a CEGA sensor in order to improve their performance are also provided.








 
 
  Recently Added Patents
Interactivity model for shared feedback on mobile devices
Methods and apparatus for power amplifier calibration
Image-capturing device and projection automatic calibration method of projection device
Data processing apparatus, activation control method, and computer-readable storage medium
Illumination unit for a direct-view display
Taxi cab key chain
Printer
  Randomly Featured Patents
Trihydrocarbyl silyl-substituted alkyl diaryl phosphine transition metal complexes and their use as homogeneous catalysts
Gun accessory mounting device
Foamed nitrogen in liquid CO2 for fracturing
Closed evaporative cooling system for an engine
Combined ramjet and rocket engine having rectilinear duct
Method and apparatus for solidifying a powdered cosmetic composition in an elongated hollow container
Process for preparing the d-threo isomer of methylphenidate hydrochloride
Compositions for extinguishing titanium fires
Note card and bulletin board easel assembly for a computer monitor
Purification of plasmid DNA during column chromatography