| 摘要 |
<p>In this engine intake control device, in which a bypass valve (30) comprises a bottom wall (30d), side walls (30c, 30c) that extend upwards from both sides of said bottom wall (30d), and first and second end walls (30a, 30b) that extend upwards from both ends of the bottom wall (30d), said bypass valve is shaped like a box, with the face opposite the bottom wall (30d) being an open face (30e). The bypass valve (30) is slidably fitted into a valve guide hole (20), and the following are placed in the bypass valve (30) through the open face (30e): a sliding piece (34); and a coil spring (38) that is supported by the first end wall (30a) and biases the sliding piece (34) toward the second end wall (30b). The second end wall (30b) is provided with a control groove (37) that engages with a rotation-prevention protrusion (34c) on the sliding piece (34) and prevents the sliding piece (34) from rotating. This makes it possible to absorb eccentricity between the rotary output shaft of a motor and this bypass valve without using an Oldham coupling.</p> |
