Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1974-09-05
1976-01-13
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
23254E, 73 19, 73 27R, 106 395, 106 733, 264 60, 338 34, C04B 3912
Patent
active
039322467
ABSTRACT:
A gas sensor, and its method of manufacture, particularly useful as an exhaust gas sensor for an internal combustion engine air/fuel ratio system, is disclosed. The sensor is comprised of a sintered ceramic body of transition metal oxide, such as titania, and includes a pair of spacedapart electrodes. As the partial pressure of oxygen in the gas being sensed varies in response to variations in the inlet air/fuel mixture ratio, the resistance of the ceramic material varies. The active portion of the sensor body is a substantially uniform body of porous ceramic material having a density of less than about 85% of theoretical density and a modulus of rupture in excess of 11,000 psi. The sensor is fabricated from a very pure transition metal oxide powder having a very fine and highly uniform particle size. The transitional metal oxide is selected so that the operating temperature of the resulting device is less than about 75% and preferably less than about 50% of the melting temperature of the metal oxide.
REFERENCES:
patent: 2725186 (1973-04-01), Lynch
patent: 3274467 (1966-09-01), Graf
patent: 3423517 (1969-01-01), Arrhenius
patent: 3611243 (1971-10-01), Hardtl
patent: 3639132 (1972-02-01), Egerton et al.
patent: 3676820 (1972-07-01), Taguchi
patent: 3717487 (1973-02-01), Hurley et al.
patent: 3732519 (1973-05-01), Taguchi
Esper Michael J.
Romine Donald J.
Stadler Henry L.
Tien Tseng-Ying
Benziger Robert A.
Ford Motor Company
Gallagher J. J.
Powell William A.
Zerschling Keith L.
LandOfFree
Gas sensor and method of manufacture does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas sensor and method of manufacture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas sensor and method of manufacture will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-745157