초록 ▼

For a supercharged internal combustion engine having at least one engine cylinder, a fuel intake system comprises a primary intake passage for supplying a combustible air-fuel mixture to the engine cylinder, and an auxiliary intake passage including a supercharger for supplying at least supercharged

For a supercharged internal combustion engine having at least one engine cylinder, a fuel intake system comprises a primary intake passage for supplying a combustible air-fuel mixture to the engine cylinder, and an auxiliary intake passage including a supercharger for supplying at least supercharged air to the engine cylinder, said supercharger being constituted by a displacement air pump and adapted to be driven by the engine such as to produce and supply the supercharged air into the engine cylinder at least during the period in which the engine cylinder is held under the compression stroke.

대표청구항 ▼

A fuel intake system for a supercharged internal combustion engine having at least one engine cylinder defined therein, which system comprises, in combination: primary intake passage means for supplying at least a suction air to the combustion chamber; and auxiliary intake passage means including a

A fuel intake system for a supercharged internal combustion engine having at least one engine cylinder defined therein, which system comprises, in combination: primary intake passage means for supplying at least a suction air to the combustion chamber; and auxiliary intake passage means including a supercharger for supplying at least a supercharged air to the combustion chamber, said supercharger being constituted by a displacement air pump, said displacement air pump having a suction port, an exhaust port and a working chamber and being operable to exert a substantially pulsating flow of air from the exhaust port in correspondence with change in volume of the working chamber, means for driving said displacement air pump from the engine and for supplying the supercharged air into the combustion chamber at least during the period in which the combustion chamber is held under the compression stroke, said supercharger having first and second pairs of suction and exhaust ports, the suction and exhaust ports of the first pair being in communication with respective passage portions of the auxiliary intake passage means, and further comprising secondary air supply passage means for supplying a secondary air to an exhaust system of the engine, the suction and exhaust ports of the second pair being in communication with respective passage portions of the secondary air supply passage means.