ANORDNING FOR ATT GENOMFORA ETT FORFARANDE FOR ATT GENOM TILLFORSEL AV TILLSKOTTSLUFT REGLERA DEN TILL EN FORBRENNINGSMOTOR TILLFORDA BRENSLELUFTBLANDNINGEN

摘要

The induction manifold of an internal combustion engine is provided with an air bypass conduit which has an air flow metering valve which is controlled by the same differential pressure experienced by the air responsive element of the carburetor in the induction tube. The pressure drop across this valve is further influenced by a second air metering valve acting as a pressure control valve, also located in the bypass line downstream of the first metering valve. A regulator responsive to engine conditions controls valves which cause selective admission of different pressures to the actuation chamber of the pressure control valve to regulate the amount of bypassed air.