Method and apparatus for providing optimum fuel-to-air ratio for

Details Method and apparatus for providing optimum fuel-to-air ratio for Method and apparatus for providing optimum fuel-to-air ratio for

1979-11-23

1981-09-22

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

123587, F02M 2506, F02M 2300

Patent

active

042904030

ABSTRACT:
The invention provides a method of, and apparatus for, controlling the fuel to air ratio of the fuel mixture to an internal combustion engine which includes a fuel mixture feed system having a known type of carburettor. In the method the fuel mixture is supplemented with air and exhaust gas by utilizing pressure controlled air and exhaust gas valves operated by pressure changes in the fuel feed system and/or intake manifold of the engine so that the valves open when the fuel to air ratio of the fuel mixture supplied by the carburettor is in excess of a predetermined value.

REFERENCES:
patent: 2211336 (1940-08-01), Linder
patent: 2633868 (1953-04-01), Berhoudar
patent: 3866586 (1975-02-01), Scott, Jr.
patent: 3931813 (1976-01-01), Horie et al.
patent: 4024847 (1977-05-01), Koganemaru
patent: 4106464 (1978-08-01), Yamashita
patent: 4117814 (1978-10-01), Takahashi

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