Colt Industries Operating Corporation

Ronald E Herman

Kenneth C Bier

Philip V Eshelman

Kalin S Johnson

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; reciprocating type solenoid control valve means is employed for modulating actuating pressure applied to the structure of the main fuel metering system and idle fuel metering system in order to achieve the desired metering functions.

Solenoid vacuum control valve means and apparatus and system for

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 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.

Apparatus and system for controlling the air-fuel ratio supplied to a

A carburetor for use in combination with an internal combustion engine has a body with an induction passage formed therethrough; a variable venturi within the induction passage is effective for variably determining the opening of a venturi throat defined thereby; and a throttle valve situated in the induction passage downstream of the variable venturi is operatively connected to the variable venturi for positioning the variable venturi generally in accordance with the position of the throttle valve.

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Romeo, MI, United States of America

Ronald E Herman