INTAKE DEVICE FOR AN INTERNAL COMBUSTION ENGINE

摘要

An intake device for an internal combustion engine is provided to combine synthetic resin individual elements of the intake device in a stable and constant manner. An intake device(1) for an internal combustion engine includes at least two synthetic resin individual components(2,3) in which a flow channel(11) for combustion air is formed at an assembled state. The synthetic resin individual components have opposed welding planes which exist on a radial outside of the low channel. The two synthetic resin individual components have at least two spaced welding planes existing on a plane having an angle with respect to a flow channel axis.