| 摘要 |
PURPOSE: A throttle valve for improving the distribution of intake air is provided to reduce the difference in air-fuel ratios of each combustion chamber by evenly distributing the intake air among distributing pipes. CONSTITUTION: In a throttle valve(20) for controlling the amount of intake air supplied to a combustion chamber, a disk(24) has a hole(26) with a predetermined size to pass the intake air. A front guide(30) is adhered to the lower side of the disk(24), and is bent with 90 degrees and introduces more intake air into the hole(26) of the disk(24). A rear guide(32) with a square shape is adhered to the rear part of a rotary shaft(22), and guides the intake air to the upper side of a throttle body(10) when the throttle valve(20) is opened, and seals up the hole(26) of the disk(24) when the throttle valve(20) is closed.
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