Patent ID: 6920858

Claim:
An air intake structure of an internal combustion engine, comprising: an intake air collector having first and second end sides which are longitudinally opposite to each other; an intake air inducting pipe connected to the intake air collector; and a plurality of branch pipes connected to the intake air collector and communicated respectively with intake air entrances of cylinders of the engine, each branch pipe being connected through a junction section of the branch pipe to the intake air collector, the junction sections of the branch pipes being arranged along a longitudinal direction of the intake air collector, wherein the intake air inducting pipe having an opening section serving as the junction section, the opening section being located between a first branch pipe located at the first end side of the intake air collector and a second branch pipe located adjacent to the first branch pipe in a longitudinal direction of the intake air collector, and having an axis which is directed to a third branch pipe located at the second end side of the intake air collector.