Suction manifold for IC engine - has manifold tube inner surfaced, impinged by intake air, with structure of fine groove mesh

摘要

The suction manifold includes one or more intake pipes. The inner surface of the pipe, impinged by the intake air flow (4-7) has a fine grooved surface structure (9). Pref. the distribution chamber (3) surface, passed by the intake air flow, is also grooved etc., using sawtooth grooves or flutes. USE/ADVANTAGE - For i.c. engines, with improved flow characteristic.