Apparatus and system for controlling the air-fuel ratio supplied

Internal-combustion engines – Charge forming device – Auxiliary control of carburetor fuel metering

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123437, 261 69R, 261121B, 261 50R, 261DIG74, F02M 700

Patent

active

042249082

ABSTRACT:
A carbureting type fuel metering apparatus has an induction passage into which fuel is fed by several fuel metering systems among which are a main fuel metering system and an idle fuel metering system, as generally known in the art; engine exhaust gas analyzing means sensitive to selected constituents of such exhaust gas creates feedback signal means which through associated transducer means become effective for controllably modulating the metering characteristics of the main fuel metering system and the idle fuel metering system.

REFERENCES:
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patent: 2394663 (1946-02-01), Carlson
patent: 2628826 (1953-02-01), Worden
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patent: 3328012 (1967-06-01), Frankowski
patent: 3706444 (1972-12-01), Masaki
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patent: 3807172 (1974-04-01), Masaki
patent: 3933951 (1976-01-01), Fisher
patent: 3936516 (1976-02-01), Nakagawa
patent: 3983189 (1976-09-01), Taylor
patent: 3987131 (1976-10-01), Hisatomi
patent: 4021824 (1977-10-01), Sugiura
patent: 4091780 (1978-05-01), Masaki

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