Device for protecting a lambda probe

Details Device for protecting a lambda probe Device for protecting a lambda probe

1988-12-19

1990-02-27

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Having means analyzing composition of exhaust gas

204428, G01N 2758

Patent

active

049034812

ABSTRACT:
Thermal shock reactions of a heated lambda probe owing to the impact of liquid droplets on the heated ceramic probe body during cold starting, which phenomenon can lead to a fracture of the ceramic probe body, are avoided, and a better representativeness of the signals transmitted by the lambda probe is achieved, in that a gas deflector plate is arranged before the lambda probe in the exhaust gas flow, as seen in the direction of flow of the exhaust gases, in such a way that the lambda probe lies in its Lee.

REFERENCES:
patent: 4240890 (1980-12-01), Watanabe
patent: 4362605 (1982-12-01), Bozon
patent: 4484440 (1984-11-01), Oki et al.
patent: 4617795 (1986-10-01), Abthoff

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