Patent ID: 8065982

Claim:
A variable intake apparatus for a V-type internal combustion engine, comprising: a plurality of intake pipes; a surge tank; a partition wall that separates each of the intake pipes from the surge tank; communication ports that are provided in the partition wall for the respective intake pipes, and that provide communication between the respective intake pipes and the surge tank; variable intake valves that open and close the respective communication ports to adjust length of intake passages; a first turning shaft and a second turning shaft, disposed substantially parallel with each other, which are connected to the variable intake valves, and which support the variable intake valves such that the variable intake valves are turned by turning the first and second turning shafts; an actuator that turns the first turning shaft; and a synchronization mechanism that connects the first turning shaft and the second turning shaft such that the first and second turning shafts are synchronously turned, wherein: the variable intake valves connected to the first turning shaft are offset from the variable intake valves connected to the second turning shaft in a direction where the first and second turning shafts extend; and a turning motion of the first turning shaft turned by the actuator is transmitted to the second turning shaft via the synchronization mechanism such that the variable intake valves connected to the first and second turning shafts synchronously open and close the respective communication ports; the synchronization mechanism is a synchronization link mechanism; and the synchronization link mechanism includes at least one of: a first adjusting portion that synchronously adjusts turning positions of the first turning shaft and the second turning shaft via the synchronization link mechanism such that closed positions of the variable intake valves are adjusted; and a second adjusting portion that adjusts the turning position of the first turning shaft and the turning position of the second turning shaft with respect to each other such that the closed position of the variable intake valves connected to the first turning shaft and the closed position of the variable intake valves connected to the second turning shaft are adjusted with respect to each other.