Apparatus for the detoxification of exhaust gases

Details Apparatus for the detoxification of exhaust gases Apparatus for the detoxification of exhaust gases

1975-12-30

1977-02-15

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123124R, 60285, F02M 700

Patent

active

040077195

ABSTRACT:
An apparatus for the detoxification of exhaust gases of an internal combustion engine having a fuel metering mechanism, such as a carburetor, which meters out fuel corresponding to the air quantity, is described. An air quantity measuring device is provided which controls the metering mechanism so as to achieve a slightly enriched fuel-air mixture. Thus, the air number (.lambda.) is initially maintained at less than 1, the air number 1 designating a stoichiometric fuel-air mixture. Secondary air is admitted via a secondary air pump, an oxygen sensor being disposed on the exhaust side, until such time an optimum of fuel-air mixture is reached. The secondary air is admitted into the suction tube of the internal combustion engine downstream of the air measuring device.

REFERENCES:
patent: 3294074 (1966-12-01), Mennicken et al.
patent: 3759232 (1973-09-01), Wahl et al.
patent: 3788070 (1974-01-01), Camarasa et al.
patent: 3799301 (1974-03-01), Bentley
patent: 3827237 (1974-08-01), Linder et al.

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