| 摘要 |
PROBLEM TO BE SOLVED: To decrease the change amount in assembling of a sealing member, so as to prevent damage by providing a seal member inserting part having the diameter smaller than the outside diameter of a shaft member on the inserting tip side of a shaft member from the sealing member, and arranging the seal member from the seal member inserting part having the diameter smaller than the outside diameter of the shaft member of a groove part. SOLUTION: A seal device seals a fitting part in which a shaft part 36c of an injector 36 is inserted in an attaching hole 37a of a delivery pipe 37. A plurality of groove parts 42, 43 formed on the outer periphery of the shaft part 36c of the injector 36 along the circumferential direction, a plurality of annular seal members 46, 47 respectively arranged in respective groove parts 42, 43, a partition wall part 44 provided between respective groove parts 42, 43 and having the diameter smaller than the outside diameter of the shaft part 36c, and a seal member inserting part 45 provided on the inserting tip side from the seal members 46, 47 arranged on the shaft part 36c and having the diameter smaller than the outside diameter of the shaft part 36c are provided. |
