| 摘要 |
PROBLEM TO BE SOLVED: To ensure running performance during casting in a cylinder block formed with a plurality of oil passages extending in a cylinder row direction and equipped with an oil jet.SOLUTION: An oil supply device 200 is equipped with a cylinder block 2 formed with a plurality of cylinder bores 23 aligned in a cylinder row direction and made by casting; an oil pan 3; an oil pump 81; and an oil jet 87. On the cylinder block 2, a main gallery 75 extending in the cylinder row direction on one side to the plurality of cylinder bores 23; and a sub gallery 76 extending in the cylinder row direction on the other side to the plurality of cylinder bores 23 are formed. The oil jet 87 has a plurality of nozzles 87a jetting oil to a piston 24, and a distribution pipe 87b formed separately from the cylinder block 2, and distributing oil to the plurality of nozzles 87a.SELECTED DRAWING: Figure 1 |
