초록 ▼

A fuel intake control system for a supercharged engine including an engine driven supercharger comprises a primary intake passage having a primary throttle valve for controlling the flow of an air-fuel mixture to be supplied to the engine, and an auxiliary intake passage having an auxiliary throttle

A fuel intake control system for a supercharged engine including an engine driven supercharger comprises a primary intake passage having a primary throttle valve for controlling the flow of an air-fuel mixture to be supplied to the engine, and an auxiliary intake passage having an auxiliary throttle valve for controlling the flow of at least an air supercharged by the supercharger and adapted to be supplied to the engine. The pressure of the discharged air by the supercharger during a particular engine operating condition is adjusted in dependence on the load imposed on the engine in such a way as to increase with increase of the load. This can be accomplished by controlling the flow of a portion of the discharged air to be relieved to the atmosphere or by controlling the rotational speed of the supercharger.

대표청구항 ▼

A fuel intake control system for an internal combustion engine having a combustion chamber, said control system comprising, in combination: primary intake means for supplying a combustible air-fuel mixture to the combustion chamber during all engine operating conditions; auxiliary intake means inclu

A fuel intake control system for an internal combustion engine having a combustion chamber, said control system comprising, in combination: primary intake means for supplying a combustible air-fuel mixture to the combustion chamber during all engine operating conditions; auxiliary intake means including a supercharger for supplying at least a supercharged air to the combustion chamber separately of air flowing through the primary intake means, said auxiliary intake means being operable during a high load engine operating condition to supply the supercharged air to the combustion chamber at least during a period in which the engine undergoes a compression stroke, said auxiliary intake means including an auxiliary throttle valve disposed therein downstream of the supercharger with respect to the direction of flow of the supercharged air towards the combustion chamber, said auxiliary throttle valve being operable to regulate the flow of the supercharged air to the combustion chamber in response to a load on the engine exeeding a predetermined value; drive means driven by the engine for driving the supercharger to cause the supercharger to produce the supercharged air; and control means for regulating the pressure of the supercharged air between the supercharger and the auxiliary throttle valve such that the pressure increases with an increased opening of the auxiliary throttle valve.