| 摘要 |
PROBLEM TO BE SOLVED: To suppress friction between a pipe pinching tool and a pipe pinched by the pipe pinching tool in an engine having a pipe pinching structure which pinches a pipe with a pipe pinching tool.SOLUTION: In an engine having a pipe pinching structure which pinches a pipe with a pipe pinching tool. The pipe pinching tool includes at least one pinching piece having a contact face for contacting to an outer peripheral surface of the pipe. A solid lubricant is interposed between the contact face of the pinching piece and the outer peripheral surface of the pipe in a manner, such as, of covering the contact face of the pinching piece with the solid lubricant. |
