FIELD: engine devices and pumps.
SUBSTANCE: structure of the air suction channel is intended for internal combustion engine equipped with a supercharger located downstream of flow meter in the channel for air suction. The engine is equipped with a bypass channel and a bypass valve for communicating with each other sides downstream and upstream of the supercharger. The channel structure comprises an expanded section (41) and an inner tube (42). The expanded section (41) is formed by local expansion of cross-section area of the channel and located in the air suction channel part and between connection point, where the air suction channel is connected to the bypass channel, and the air flow meter. The inner tube (42) is located inside the expanded section (41). The downstream end of the inner tube (42) is formed by the expanded section (41) which opens toward the outlet section (44). The inner tube (42) and the inner wall surface of the expanded section (41) form a space section (55) therebetween. The space section (55) has an upstream side blocked by a partition (50) and a downstream side which opens into the expanded section (41).
EFFECT: prevention of reverse flow which can occur between the bypass and the air flow meter.
7 cl, 7 dwg
