| 摘要 |
PURPOSE:To simplify the whole structure of the present fluid passage device by forming a cylinder block of a cylinder barrel aggregation block and a skeleton frame which is integrated therewith for surrounding the outer periphery thereof and the like, to thereby form the fluid passage in the skeleton frame. CONSTITUTION:A cylinder block Bc forming the main body of an engine block E is composed of a cylinder barrel aggregation block 7 formed of four cylinder barrels 101 to 104, a skeleton frame 8 integrated with the cylinder block aggregation block 7 for surrounding the outer periphery thereof and a planer rigid membrane member 9 provided on the outside surface of the skeleton frame 8. An oil gallery 63, formed inside the skeleton frame 8, is composed of an inport 64 intercommunicated with the discharge passage 62 of an oil pump Op, the first oil gallery 63 having a flow-out port 66 intercommunicated with an oil filter OF and the second oil gallery 63 extending over the skeleton frame 8 and having an outlet 65 on the bent upper end portion thereof. |
