US Patent 8156912 Vehicle including a variable intake pipe length device

Disclosed herein is a vehicle including a variable intake pipe length device capable of adjusting the length of an intake pipe according to the condition of an engine, the intake pipe being provided in an intake passage for inducing air from an air cleaner box to an intake port of the engine, the intake pipe including a fixed funnel and a movable funnel movable relative to the fixed funnel by a driving force of an actuator, wherein the actuator is located inside of an envelope formed by the contour of the intake pipe.