The present invention relates to an engine having an intake passage, comprising a primary intake passage being branched into branched passages at its downstream end for each intake valve, and being provided with an intake control valve adapted to control a...

A partition plate for an intake port of a cylinder head to be manufactured by cast molding is preliminarily set prior to the cast molding in a sand core applied to form the intake port and then cast in by the cast molding to partition the intake port into ...

Manifold consisting of a hollow body defining an intake or plenum chamber and a plurality of pipes provided in the region of their free end(s) with a pivoting valve device, fitted with its rotatory support shaft in an assembly site. Intake manifold charact...

A single admission conduit (1) connects the cylinder head (7) to the cylinder admission zone through an admission valve. The admission conduit opening which discharges into the cylinder (3) is located so that the straight line (D1) joining the center of th...

The air induction port system comprises a suction pipe housing with suction ports leading to the cylinders and which are then divided into two individual ports each having a swirl flap (7) mounted on a shaft (6) rotatable by a drive. The shaft with the swi...

The invention relates to a control device for an internal combustion engine having a swirl control device to control swirls in a combustion chamber of the internal combustion engine, comprising: an intake control valve (107) provided in an intake passage (...

A multiple intake valve engine has a first intake port (1) and second intake port (2). The first intake port (1) has an outlet (7), and the second intake port (2) has an outlet (8). The first intake port (1) is provided upstream of the second intake port (...