INTEGRATED VALVE DEVICE FOR INTAKE MANIFOLD

摘要

PROBLEM TO BE SOLVED: To provide an integrated valve device for an intake manifold for promoting generation of a tumble flow in a combustion chamber with less number of parts and less number of steps of assembly work to a casing. SOLUTION: A valve stem member is inserted through a through-hole 10 provided in a direction orthogonal to a plurality of intake passages 3 provided corresponding to intake ports of an internal combustion engine. A plurality of valve parts 5 formed in the valve stem member are provided switchably between a first posture with the intake passages 3 fully opened for forming a part of the inner walls 3a of the intake passages 3 so as to be buried in the inner walls 3a, and a second posture of blocking a part of the intake passages 3. COPYRIGHT: (C)2010,JPO&INPIT