Multicylinder engine

Details Multicylinder engine Multicylinder engine

1976-06-17

1978-11-14

Cox, Ronald B.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123127, 60276, F02M 700, F02M 1306

Patent

active

041250982

ABSTRACT:
A multicylinder engine comprising at least one first cylinder, a corresponding number of second cylinder, and a carburetor to supply a fuel-air mixture leaner than stoichiometric to all the first and second cylinders. When required by the driving range and other driving conditions, a rich mixture is supplied to the second cylinder to lower the air-fuel ratio in it for the purpose of exhaust emission purification, while the first cylinder is being supplied with the lean mixture.

REFERENCES:
patent: 3648674 (1972-03-01), Proctor
patent: 3678911 (1972-07-01), Soubis
patent: 3708980 (1973-01-01), Truxell
patent: 3785153 (1974-01-01), Schwing
patent: 3910241 (1975-10-01), Fijisawa

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