| 摘要 |
PURPOSE:To prevent the generation of an impulse wave and the collision of reverse fuel particles at the time of a backfire by providing a temperature sensitive element such as a thermistor in an air intake duct in an exposed state and providing a buffer means or protection cylinder on its downstream side. CONSTITUTION:The protection cylinder 20 has an opening 20A facing the upstream side of the air intake duct 1 and opening 20B and 20C almost at right angles to it, and is closed on the downstream side of the air intake duct 1. Then, the pressure of suction air is relatively lower than impulsive pressure at the time of a backfire, so the air flows out of other openings 20B and 20C smoothly. Thus, the temperature of the suction air is measured by the temperature sensitive element 11. |
