| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil supply structure capable of stably controlling the supply of oil to a piston during operation of an engine.SOLUTION: An oil supply structure of an engine comprises an oil passage 20 and a branch passage 31 provided in a connecting rod 5 for connecting a crank shaft 2 and a piston 1 of the engine, and an oil passage 21 provided in the crank shaft 2, and supplies oil to the piston 1 through the oil passage 21, the branch passage 31, and the oil passage 20. A valve body 32 is provided in the oil passage 21. The valve body 32 is displaced by centrifugal force caused by the rotation of the crank shaft 2, and thereby opens/closes the branch passage 31. |
