Abstract: In a variable intake apparatus for a multi-cylinder internal combustion engine, each cylinder is allowed to communicate with each other through air intake passageways including at least a pair of air intake passageway portions. Further, an air intake control valve integrally provided with a pair of valve bodies is disposed at an opening which is formed at a partition wall. The partition wall is formed between the intake air collecting chamber and the air intake passageway. Further more, the air intake control valve is actuated according to engine speeds of the internal combustion engine such that the air intake passageway portion is opened and closed by one of the valve bodies whereas the opening in the partition wall is opened and closed by the other of the valve bodies.

Abstract: In an oil mist generation system, an oil slinger is disposed in an oil tank and is rotated by a crankshaft, the oil slinger scattering oil store in the oil tank by the rotation of the oil slinger so as to generate an oil mist. The oil mist generation system includes a drive gear provided on the crankshaft, and at least three oil slingers supported on three support shafts and simultaneously driven by the drive gear, the three support shafts being arranged around the drive gear. Therefore, besides a circular shape, various shapes can be imparted to the peripheral wall of the oil tank.