| 摘要 |
PURPOSE:To prevent main and slow jets from blocking holes caused by a foreign matter, by providing a foreign matter shutoff plug in the upstream of each jet metering fuel. CONSTITUTION:A slow passage 8 is communicated to a slow jet, and a foreign matter shutoff valve 12 is set to the slow passage 8 folded at a right angle. In such formed fuel passage, an obstacle of foreign matters can be stopped between a head part of the foreign matter shutoff valve 12 and a wall surface, and a jet 9, provided in the downstream of the valve, is never blocked. |
