JPH0387826U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a plan view of a four-cylinder internal combustion engine to which the first embodiment of the present invention is applied, Fig. 2 is a perspective view of a port assembly, and Fig. 3 is a partially sectional side view of the internal combustion engine of Fig. 1. , Fig. 4 is a front view of the assembly body shown in Fig. 1 as seen from the intake manifold side, Fig. 5 is a front view of the port assembly shown in Fig. 1 as seen from the cylinder head side, and Fig. 6 is a front view of the assembly body shown in Fig. 1. 7 is a bottom view of FIG. 5, FIG. 8 is an enlarged plan view of the port assembly of the second embodiment, and FIG. 9 is an enlarged view of the port assembly of FIG. 8. FIG. 10 is an enlarged sectional view of the connecting portion of the link arm, and FIG. 11 is an enlarged partially sectional plan view of the port assembly of the third embodiment. 1...Cylinder head, 22-25...Straight port, 26-29...Helical port, 3
4... Port assembly, 39-42... Insertion section, 43... Assembly body, 57-60...
...Intake control valve.

Claims (1)

[Scope of utility model registration request] Each intake port that opens into each cylinder is formed in the cylinder head, and each of the intake ports on the side that opens into the cylinder is divided into a first port part and a second port part, and the upstream side of each intake port is divided into a first port part and a second port part. An intake system for a multi-cylinder internal combustion engine, wherein an intake control valve for opening and closing the first port is provided in each connection port connected to the first port, and the connection ports corresponding to each cylinder are interconnected.