| 摘要 |
PURPOSE:To elevate the reliability along with reduction in the size and the weight of device by simplifying the construction of a passage operation valve mechanism with two fuel passages provided in a casing. CONSTITUTION:A second nozzle tip 5 is provided in a casing 1. A valve seat 30 is formed on the top surface of the center of a separator 7 piled on a first nozzle tip 6. Several main fuel passage 32 are formed radially toward the circumference from a cylinder hole 31, and first fuel paths 33 are branched off at an intermediate position of the main fuel passage 32, communicating with a circular groove 22 of the first nozzle tip 6. A second fuel passage 38 is formed in a separator 7 to introduce a combustion chamber 37 to a second nozzle tip 5. This eliminates other special parts for passages. |
