| 摘要 |
<p>PURPOSE:To prevent generation of abnormal noise caused by surging phenomenon in a supercharging condition at the time of closing a throttle valve for traction control. CONSTITUTION:A main throttle valve 10 which is interlocked to an acceleration pedal and a throttle valve 15 for traction control driven by a DC motor at the time of traction control upstream therefrom are arranged in their serial connection in the intake passage of an engine, and a reflux valve 14 for opening/ closing a passage 23 connected to the compressor side passage of a turbocharger by bypassing an air intake passage, is provided on the outer wall of the air intake passage therebetween. A bypass passage 14a which is formed by partitioning by means of a partitioning wall 14b, and connects the upstream side from the throttle valve 15 to the entrance of the reflux valve 14 by bypassing the throttle valve 15 for the traction control is provided in the air intake passage leading from the throttle valve 15 for traction control toward the reflux valve 14.</p> |
