Device for producing control signal for feedback control of air/

Details Device for producing control signal for feedback control of air/ Device for producing control signal for feedback control of air/

1980-07-25

1981-11-24

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2758

Patent

active

043023126

ABSTRACT:
A device comprising an oxygen-sensitive element to be disposed in combustion gas exhausted from a combustor to detect deviation of actual air/fuel mixing ratio of a mixture supplied to the combustor from a stoichiometric ratio. The element is a combination of two oxygen concentration cells each having a solid electrolyte layer, a measurement electrode layer formed on one side of the electrolyte layer and a reference electrode layer formed on the opposite side and covered with a shield layer. The device includes DC power supply means for forcing a current to flow through the solid electrolyte layer of each cell thereby to cause migration of oxygen ions therethrough, from the measurement electrode to the reference electrode in one cell and reversely in the other cell, and a circuit to make a comparison between first and second output voltages respectively developed by the first and second cells to examine which one of these two output voltages is higher than the other and produce a control signal according to the result of the comparison. The signal-producing function is not influenced by the temperature of the element so that a correct control signal can be produced even when the element is not yet sufficiently heated.

REFERENCES:
patent: 4207159 (1980-06-01), Kimura et al.
patent: 4224113 (1980-09-01), Kimura et al.

Affiliated with

Also associated with

Rating

Device for producing control signal for feedback control of air/ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for producing control signal for feedback control of air/, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for producing control signal for feedback control of air/ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2173562