Arrangement for correcting the proportions of air and fuel suppl

Details Arrangement for correcting the proportions of air and fuel suppl Arrangement for correcting the proportions of air and fuel suppl

1974-06-25

1976-08-31

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

60276, 123124R, 123124B, F02M 2300

Patent

active

039773752

ABSTRACT:
At least one auxiliary air inlet is provided. The inlet is controlled by at least one valve communicating with the inlet pipe of the engine downstream of a device determining the proportion of air and fuel supplied to the engine, such as a carburettor. The valve is controlled by the vacuum from the proportioning device via a capsule including a diaphragm biased by a spring. The vacuum is modulated by an electromagnetic valve controlled by a sensor positioned in the exhaust pipe. The sensor delivers to the electromagnetic valve an electric current variable as a function of the composition of the burnt gases.

REFERENCES:
patent: 1347192 (1920-07-01), Tygard et al.
patent: 3374991 (1968-03-01), Walker
patent: 3664316 (1972-05-01), Garcea
patent: 3675632 (1972-07-01), Nakajima
patent: 3738341 (1973-06-01), Loos
patent: 3759232 (1973-09-01), Wahl et al.
patent: 3820326 (1974-06-01), Inoue et al.
patent: 3866588 (1975-02-01), Nakada et al.

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