| 摘要 |
An intake system for an internal combustion engine, includes a rotary valve including a casing provided with a first port, a second port and an outlet port, and a rotatable valve member accommodated in the casing and rotated by an actuator, a first intake passage fluidically connecting a surge tank and the first port, a second intake passage fluidically connecting the surge tank and the second port and a third intake passage fluidically connecting a cylinder and the outlet port, wherein a first state where the outlet port is throttled and at least one of the first port and the second port is opened, or a second state where the outlet port, and at least one of the first port and the second port are opened, is selectively established.
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