| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oil jet structure capable of sufficiently securing strength and rigidity of a cylinder block of an engine, without impairing castability of the cylinder block. <P>SOLUTION: This oil jet structure includes a nozzle 91 for injecting an oil jet toward a back face of a piston P for reciprocating in a cylinder C of the engine E, a wall inside passage (a communicating passage 11 as one example) formed in a wall part 10 of the cylinder block 1 of the engine E and communicated with the nozzle 91, and a passage forming member (an oil distribution pipe 8 as one example) having an oil passage 80a communicated with the wall inside passage and fastened from the outside to the wall part 10. <P>COPYRIGHT: (C)2013,JPO&INPIT |
