Method for monitoring the supply of secondary air to the exhaust

Details Method for monitoring the supply of secondary air to the exhaust Method for monitoring the supply of secondary air to the exhaust

1997-03-13

1999-02-16

Ryznic, John E.

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60285, F01N 300

Patent

active

058708910

ABSTRACT:
The invention relates to a method for monitoring blowing in secondary air to the exhaust gas in an internal combustion engine equipped with a measuring sensor for detecting the oxygen content in the exhaust gas. The method is based on the reaction of the measuring sensor to the switch in of the secondary air. The quantity of the air inducted by the engine is increased when the secondary air is supplied to the exhaust gas.

REFERENCES:
patent: 3827237 (1974-08-01), Linder et al.
patent: 4007719 (1977-02-01), Brettschneider et al.
patent: 4068472 (1978-01-01), Takata et al.
patent: 4376369 (1983-03-01), Horikoshi et al.
patent: 4385491 (1983-05-01), Sakurai et al.

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