A variable intake apparatus for an in-line four-cylinder internal combustion engine includes a rotary valve 3 provided between an intermediate portion along the length of four air intake passages 41 to 44 and an intake air collecting chamber 5, and a contr...

The invention relates to an air system intake module for an internal combustion engine, having one air inlet passage connected to an air cleaner housing (101) and plural air outlet passages (105) connected to a cylinder; wherein said air inlet passage of s...

The device has a storage vessel and partly flexible intake pipes leading to the cylinders. The pipes have rigid or length-variable sections, and these are divided into two or more independently moveable segments (13,14). The segments are held in a common p...