Title: Oxygen sensor devoid of catalytic oxidation activity

Abstract: An electrode of an oxygen sensor of the concentration cell type is made of a material such as Au or a Pt/Pb/S mixture, which material is devoid of catalytic oxidizing effect on CO and HC in an engine exhaust gas, so that the EMF characteristics depend on actual O.sub.2 concentrations.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Takao, Hiroshi (Kamakura, JA)
Togawa, Kinmochi (Zushi, JA)
Matoba, Kazuo (Yokohama, JA)
Hata, Yoshitaka (Fujisawa, JA)

Application Number: 494890
Filing Date: 1974-08-05
Publication_date: 1976-03-02
Assignee: Nissan Motor Co., Ltd. (JA)
Primary Class(es): 204/427 420/580, 427/125
Other Classes:
US Patent Ref:

3216911	Nov, 1965	Kronenberg	204/1.
3481855	Dec, 1969	Kolodney et al.	204/195.
3597345	Aug, 1971	Hickham et al.	204/195.
3768259	Oct, 1973	Carnahan et al.	204/195.
3791953	Feb, 1974	Minushkin et al.	204/195.
3819500	Jun, 1974	VanEsdonk et al.	204/195.

Other Refs:
Primary Examiner: Kaplan, G. L.
Assistant Examiner:
Attorney: Burns; Robert E., Lobato; Emmanuel J., Adams; Bruce L.