Resources Contact Us Home
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
Magnetic reading and writing device
Control of an electric machine
Leg stretching device
Systems and methods for providing a collaboration place interface including data that is persistent after a client is longer in the collaboration place among a plurality of clients
Registration and network access control
Synthesizing VHDL multiple wait FSMS into RT level FSMS by preprocessing
Signal processing device and method for providing oscillating signal in the signal processing device
  Randomly Featured Patents
Polysaccharides compositions comprising fucans and galactans and their use to reduce extravasation and inflammation
Motor-driven wheel driving apparatus
Mi nucleic acids and uses thereof for conferring pest resistance in plants
Heating circuit and electronics assembly
Method for operating networked gaming devices
Door opening and closing apparatus for vehicle
Scalable processor to processor and processor to I/O interconnection network and method for parallel processing arrays
Toy building block set
Method and apparatus for generating and implementing smooth schedules for forwarding data flows across cell-based switches
Means for interconnecting two spaced elongated rods of a human spine implant