| 摘要 |
PROBLEM TO BE SOLVED: To provide an excellent fuel distribution rail with outstanding resistance to a mechanical load in a coupling portion range.SOLUTION: A fuel distribution rail for fuel injection of an internal combustion engine hasa base pipeline 1, and a fuel passage 2 extending in a longitudinal direction of the base pipeline 1. At least one connection device 4 is fixed to the base pipeline 1. At least one force load reducing groove 9 that extends over at least one part of an outer periphery of the base pipeline 1, preferably at least a large part of the outer periphery of the base pipeline 1 is arranged or incorporated in a range of the connection device 4 on an outer surface of the base pipeline 1 that is a metallic pipeline, particularly a steel pipe. |
