| 主权项 |
1. An air intake apparatus for an internal combustion engine, comprising:
a surge tank, to which air is guided; a resonator that has a volume chamber, which is communicated with the surge tank through a communication passage; a primary intake passage that communicates between a cylinder of the internal combustion engine and the surge tank; a secondary intake passage that extends in an imaginary plane that is generally parallel to an extending direction of the communication passage, wherein the secondary intake passage communicates between the surge tank and one of the cylinder and the primary intake passage, and a passage length of the secondary intake passage is shorter than a passage length of the primary intake passage; a shaft that extends through the communication passage and the secondary intake passage, which are arranged one after another in a direction perpendicular to the imaginary plane; a variable intake valve that is fixed to the shaft, wherein the variable intake valve opens and closes the secondary intake passage; a resonator valve that is fixed to the shaft, wherein the resonator valve opens and closes the communication passage; and a drive device that rotates the shaft to drive the variable intake valve and the resonator valve, wherein
when the resonator valve is opened to open the communication passage, communication between the volume chamber of the resonator and the surge tank is enabled; andwhen the resonator valve is closed to close the communication passage, the communication between the volume chamber of the resonator and the surge tank is blocked. |
