INTAKE SYSTEM FOR INTERNAL COMBUSTION ENGINE AND CONTROLLING SYSTEM OF INTERNAL COMBUSSTON ENGINE THEREWITH

摘要

PROBLEM TO BE SOLVED: To provide an intake system to conduct a measurement with high accuracy of the flowing volume for internal combustion engines and a controlling system to perform a control with high accuracy for the internal combustion engines as well as to reduce the output noise of a sensor for measuring the flowing volume of air. SOLUTION: An intake air passage is composed of a dust 10 connected through to an air cleaner side and an air passage body 20 connected through to an internal combustion engine and connected with the duct 10 as well. A sensor 40 for measuring the flowing volume of air is mounted on the air passage body 20. A sensing part 42 of the sensor 40 is inserted into the intake air passage from an opening formed on the air passage body 20 to detect the volume of flowing air. A first flow straightening plate 100 is provided inside of the dust 10 and a second flow straightening plate 200 is provided within the air passage body 20, at the upstream of the mounting position of the sensor 40.