Air flowmeter for the inlet to a combustion engine is positioned in a curved pipe section that changes from an oval inlet section to a round outlet section so that airflow is optimized for measurement accuracy

摘要

Air supply system for a combustion engine has air mass meter (2) within a pipe section (1) of the supply system, whereby said meter containing pipe section is curved. To further improve measurement accuracy the pipe section is designed so that it changes from an oval section (3.1) to a round section (3.2).