Exhaust gas purifying system for multi-cylinder internal combust

Details Exhaust gas purifying system for multi-cylinder internal combust Exhaust gas purifying system for multi-cylinder internal combust

1978-02-22

1980-06-17

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Material from exhaust structure fed to engine intake

60293, 60306, F02M 2506, F01N 310

Patent

active

042077389

ABSTRACT:
A sufficient amount of secondary air is supplied to the exhaust gases without requiring numerous supply tubes. The supply tubes are connected to the longest branch of the exhaust manifold or the exhaust port passage to which the longest branch is connected where the inertial flow of the exhaust gases is greatest. A mass of the exhaust gases recirculated to the intake through a recirculation tube is prevented from being admixed with the secondary air. The recirculation tube is connected to the branches of the manifold exclusive of the longest branch.

REFERENCES:
patent: 3662541 (1972-05-01), Sawada
patent: 3948044 (1976-04-01), Wakita
patent: 4069666 (1978-01-01), Nakamura
patent: 4084373 (1978-04-01), Hashimoto
patent: 4100734 (1978-07-01), Ozaki
patent: 4133175 (1979-01-01), Katoh

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