| 摘要 |
PROBLEM TO BE SOLVED: To provide an intake control device for an engine to prevent the occurrence of intake interference between intake paths and attribute to improvement of output performance during high speed and high load operation of the engine. SOLUTION: A plurality of throttle valves 6a and 6b opening and closing synchronously is situated in a plurality of intake paths 5a and 5b respectively communicating with a plurality of the intake ports of an engine and bypass passages 12a and 12b by-passing the corresponding throttle valves 6a and 6b are connected to the intake paths 5a and 5b. A plurality of the bypass passages 12a and 12b are opened or closed by a bypass valve 18 common to a plurality of the bypass passages 12a and 12b. In the so formed intake control device 1, an enlarged chamber 1 to damp a fluctuation of a pressure propagating from the intake paths 5a and 5b is situated at each of the parts, situated upstream of the bypass valve 18, of the bypass passages 12a and 12b. |
