Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1975-10-14
1977-08-23
Dority, Jr., Carroll B.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123119D, 123119DB, 123124R, F02B 3300, F02M 2304
Patent
active
040433056
ABSTRACT:
The emission of atmospheric pollutants in the exhaust gases of an internal combustion engine having a carburettor is reduced by regulating the composition of the inlet gases, and hence the exhaust gases, of the engine by means of a control device comprising an extra air duct, which has a control valve and bypasses the carburetor, for supplying extra air to the engine inlet, a recirculating duct for recirculating exhaust gases to the engine inlet, a controller which is responsive to signals from an exhaust gas composition sensor installed in the exhaust outlet of the engine and which controls an electrically operated valve in the recirculating duct, and a pressure-sensitive device which communicates with the recirculating duct upstream of the electrically operated valve and which actuates the extra air control valve to regulate the supply of extra air to the engine through the extra air duct.
REFERENCES:
patent: 3580233 (1971-05-01), Busse
patent: 3643641 (1972-02-01), Busse
patent: 3713428 (1973-01-01), Sandhagen
patent: 3844260 (1974-10-01), Scott
patent: 3916610 (1976-06-01), Thurston
patent: 3928966 (1975-12-01), Goto
patent: 3929118 (1975-12-01), Leong
patent: 3931813 (1976-01-01), Horie
patent: 3951115 (1976-04-01), Brisko
patent: 3963011 (1976-06-01), Saito
patent: 3970052 (1976-07-01), Andoh
Automobiles Peugeot
Dority Jr. Carroll B.
O'Connor Daniel J.
Regie Nationale des Usines Renault
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