SOUND INSULATING STRUCTURE OF RESIN-MADE CHAMBER

摘要

PROBLEM TO BE SOLVED: To increase a sound insulating factor for a resin-made chamber while an increase is suppressed in a cost of manufacture. SOLUTION: This structure has a resin-made chamber part 3 and a sound insulating member 9 mounted in the chamber part 3 so as to cover its periphery. Since this sound insulating member 9 is excellent in sound insulation, a noise of intake air generated in the chamber part 3 is effectively insulated.