Waterproof type oxygen sensor

Details Waterproof type oxygen sensor Waterproof type oxygen sensor

1990-03-01

1992-02-18

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

20415318, 204421, 204424, 204428, G01N 27409

Patent

active

050891332

ABSTRACT:
A waterproof type oxygen sensor including a sensor element having electrodes on inner and outer surfaces, respectively, a housing for housing the sensor element, a gas-tightly sealed section arranged inside the housing for isolating the exhaust gases from air, and a water-repelling communicating section for communicating the air inside the gas-tightly sealed section with surrounding air. The inner and outer electrodes are adapted to contact air and exhaust gases, respectively. In the oxygen sensors, Y.gtoreq.10X.sup.0.35 in which X and Y are a value obtained by expressing the gas-tightness of the gas-tightly sealed section as an amount of a gas passing the gas-tightly sealed section and an amount Y of a gas passing the communicating section, respectively.

REFERENCES:
patent: 4362609 (1982-12-01), Sano et al.
patent: 4526672 (1985-07-01), Reed
patent: 4569748 (1986-02-01), Yamakawa et al.
patent: 4717464 (1988-01-01), Oshima et al.
patent: 4784743 (1988-11-01), Iino et al.
patent: 4786397 (1988-11-01), Barbieri et al.
patent: 4786398 (1988-11-01), Wertheimer et al.
patent: 4786399 (1988-11-01), Wertheimer et al.

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