Air induction channel system for internal combustion engine

摘要

The air induction channel system has bypass channels (7) which can be moulded in the adaptors (11, 12). These channels are fitted in the adaptors so as to allow for moulding. At least one of the adaptors has a receiving aperture (17) in the intermediate walls (16) between the individual induction channels (3) for each bearing sector (14) of the valve shaft (13). At least the bearing sectors and air valves (8) of the valve shaft are cast in one with a sector of tube. There may be other adaptors (18) between the receiving apertures and the bearing sectors.