Air intake channel system for an internal combustion engine comprises an opening having a flow cross-sectional area that is a specified percentage of the flowable cross-sectional area of individual air intake channels

摘要

Air intake channel system for an internal combustion engine comprises a collecting inlet channel (2) fluidically connected to air intake channels leading to the cylinders of the engine. Each air intake channel has a short circuit opening (8) controlled by a valve which, depending on the operating state of the engine, produces or interrupts by opening or closing a fluidic connection to the individual air intake channels so that the active intake length of the individual air intake channels can be selectively shortened or lengthened. An opening (13) released in the region of the short circuit openings for fluidic connection of the collecting inlet channel to the individual air intake channels has a flow cross-sectional area between 1 and 25, preferably 10 and 20% of the flowable cross-sectional area of the individual air intake channels. Preferred Features: The openings are arranged in a wall (11) of the individual air intake channels and are controlled by a valve (14).