Suction-air parameter measurement device for internal combustion engine, has protective grating which differently influences movement paths of solid particles in air

摘要

A measurement element (45) is arranged along air flow lines (3,22). A protective grating (25) has a channel (63) which downwardly deflects the air flowing along a main flow direction (12). A measurement element (70) has a protective grating which differently influences the movement paths (60) of the solid particles in the air.