| 摘要 |
PROBLEM TO BE SOLVED: To process and assemble a bypass control device separately from a throttle body assembly.SOLUTION: A control base body 5 is joined to an attachment surface 1a on one side of a throttle body 1, and a first communication groove 16 communicated with a downstream side end of an upstream passage 14 of a bypass 13, and a second communication groove 17 communicated with an upstream side end of a downstream passage 15 of the bypass 13 are formed on the attachment surface 1a. A valve guide hole 7, an inflow hole 11 communicating the first communication groove 16 with the valve guide hole 7, and a measurement hole 10 communicating the second communication groove 17 with the valve guide hole 7 and opened and closed by a control valve 12 are formed in the control base body 5. The valve guide hole 7, the control valve 12, and an electric motor 20 are arranged so that a common axis Y thereof is orthogonal to an axis X of an intake passage 2, and the measurement hole 10 and a downstream side end of the downstream passage 15 are offset S with each other along the axis X of the intake passage 2. |
