| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubricating device for a piston slide part in a simple constitution, which can use oil used for cooling a piston as lubricating oil to reduce the sliding resistance of the piston without causing an increase in cost and also an increase in the discharge capacity of an oil pump.SOLUTION: In an engine E equipped with an oil jet nozzle 12 which is provided near the lower end of a cylinder bore 2 and jets oil onto the rear surface 3b of the piston 3, a cooling channel 30 having an inlet passage 31 and an outlet passage 32 is formed inside the piston 3, and a projection 41, for example, having an inclined surface inclined on the outlet passage 32 side to the top surface 3a of the piston 3 is formed integrally with a connecting rod 5, as a deflecting means for deflecting the oil discharged from the outlet passage 32 of the cooling channel 30 to a surface on the outlet passage 32 side of the cylinder bore 2. |
