Exhaust gas purifying system for an internal combustion engine

Details Exhaust gas purifying system for an internal combustion engine Exhaust gas purifying system for an internal combustion engine

1976-09-14

1978-02-28

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60307, 123 97B, 123119EC, 123127, 123198F, F02B 7510

Patent

active

040758370

ABSTRACT:
Disclosed is an improved exhaust gas purifying apparatus for an internal combustion engine. One of engine cylinders is provided with a suction conduit and an exhaust conduit which are separate from a main intake manifold and a main exhaust manifold which are connected to the remaining cylinders. The suction conduit is connected to a sub-carburetor, while the main intake manifold is connected to a main carburetor. The sub-carburetor includes a throttle valve mounted on a shaft on which a throttle valve in the main carburetor is mounted. The apparatus further includes fuel control means connected to the sub-carburetor for controlling supply of fuel through the separate suction conduit in response to a negative pressure prevailing in the main intake manifold. The separate exhaust conduit has a plurality of outlets opening into the main exhaust manifold. The fuel control means is operable to establish from time to time the condition under which the fluid flowing through the sub-carburetor and one cylinder into the main exhaust manifold consists only of air, of which the quantity is proportional to that of the exhaust gas delivered from the remaining cylinders.

REFERENCES:
patent: 1960432 (1934-05-01), Barker
patent: 2623617 (1952-12-01), Snyder
patent: 3192706 (1965-07-01), Dolza
patent: 3270724 (1966-09-01), Dolza
patent: 3698371 (1972-10-01), Mitsuyama
patent: 3800772 (1974-04-01), Gospodar
patent: 3861366 (1975-01-01), Masaki
patent: 3906910 (1975-09-01), Szlaga
patent: 3921612 (1975-11-01), Aono

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