| 摘要 |
Provided is a terminal structure of a high-pressure fuel pipe for a direct injection engine, with which the concentration of stress with respect to the brazed part between the pipe and connecting components can be effectively prevented. This terminal structure of a high-pressure fuel pipe for a direct injection engine, for which a connection head part is brazed to the end of a fuel pipe, is characterized in that there is a draw-formed part at the fuel pipe end part connected to the fuel pipe insertion part of the connection head part, and when the outer diameter D1 of the draw-formed part is 0.8D ≤ D1 ≤ 0.9D with respect to the fuel pipe diameter D, there is a straight pipe part for which the length L1 in the axial direction of the pipe, from the fuel pipe insertion part terminal of the outer diameter D1 of the draw-formed part, satisfies the equation L1 ≥ 0.06D. |
