Automotive exhaust emission system

Details Automotive exhaust emission system Automotive exhaust emission system

1978-06-12

1981-12-01

Koczo, Jr., Michael

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

251322, 251337, F02B 7510

Patent

active

043029361

ABSTRACT:
An internal combustion engine having an exhaust system is shown provided with an air pump which is effective for supplying air to the exhaust system to oxidize unburned hydrocarbons within the exhaust gases of the exhaust system; a valve assembly, operatively interposed between the air pump and the exhaust system, is effective, in response to parameters of engine operation, to at times cause a portion or even all of the air supplied by the air pump to be delivered to the atmosphere instead of to the exhaust system.

REFERENCES:
patent: 2844323 (1958-07-01), Engstrom
patent: 3520320 (1970-07-01), Crawford
patent: 3919843 (1975-11-01), Arnaud
patent: 3992878 (1976-11-01), Moorman
patent: 4050249 (1977-09-01), Collins
patent: 4104880 (1978-08-01), Ito

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