Exhaust gas cleaning apparatus for an internal combustion engine

Details Exhaust gas cleaning apparatus for an internal combustion engine Exhaust gas cleaning apparatus for an internal combustion engine

1975-12-30

1977-03-08

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

261121B, F02M 2506

Patent

active

040107230

ABSTRACT:
An exhaust gas cleaning apparatus for an internal combustion engine for a vehicle having a carburetor including an air bleed system to bleed air into a fuel line of said carburetor, and having an exhaust gas recirculation valve including a diaphragm mechanism which is controlled by negative pressure in said carburetor to recirculate a part of said exhaust gas from the exhaust manifold to the intake manifold.
The apparatus comprises another air bleed system to bleed air to the fuel line of the carburetor and valve means for communicating said other air bleed system and said diaphragm mechanism of the exhaust gas recirculation valve with the atmosphere in response to negative pressure in the venturi of said carburetor and in the intake manifold.

REFERENCES:
patent: 3906910 (1975-09-01), Szlaga, Jr.
patent: 3915136 (1975-10-01), Caldwell
patent: 3926161 (1975-12-01), Wertheimer
patent: 3948236 (1976-04-01), Nartowski
patent: 3951115 (1976-04-01), Brisko
patent: 3970052 (1976-07-01), Andoh

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