Air-fuel ratio detecting apparatus
AssigneeNissan Motor Co., Ltd.
InventorsMasao Chiba, Takeshi Fujishiro
Life of this patent
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Abstract
An air-fuel ratio detecting apparatus, comprises a first pair of electrodes, interposing a porous solid electrolyte therebetween, a second pair of electrodes, interposing a porous solid electrolyte therebetween, a dense solid electrolyte to which one of the first pair of electrodes and one of the second pair of electrodes contact, and a device for causing constant-currents to flow through the first and second pairs of electrodes, respectively, so as to detect voltage developed between the electrodes contacting with the dense solid electrolyte, thereby for obtaining air-fuel ratio detecting apparatus having uniform voltage output characteristics even by mass production.
Claims15
An air-fuel ratio detecting apparatus, comprising:
- a first pair of electrodes;
- a first porous solid electrolyte interposed between said first pair of electrodes;
- a second pair of electrodes;
- a second porous solid electrolyte interposed between said second pair of electrodes;
- a dense solid electrolyte with which one of said first pair of electrodes and one of said second pair of electrodes is in contact;
- means for causing constant-currents to flow through said first and second pairs of electrodes, respectively;
- and
- means for detecting voltage developed between said electrodes contacting with said dense solid electrolyte.
Dependencies are inferred from the claim text.