| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel pressure pulsation reducing device used in a fuel injection system, capable of enhancing pulsation absorbing performance, and capable of preventing clogging of a fuel injection valve caused by sputter generated in welding of a housing.SOLUTION: A fuel pressure pulsation reducing device includes a sealed housing 11 having a fuel chamber 15 formed in an inside thereof, and a fuel pressure pulsation absorbing member D provided in the fuel chamber. The housing 11 having the fuel chamber in the inside thereof is formed by superimposing flange parts 12b and 13b of the outer circumference of first and second members 12 and 13 formed in a cup shape by press working, and radiating laser beams to all over an annular abutting part from a direction orthogonal to the abutting part of both of the members so as to integrally and liquid-tightly weld and couple both of the members. |
