发动机气缸套封水圈槽一般是在机体上。这样的结构有一个很大的缺点,即其上沿容易被水腐蚀,尤其是沿海地区。腐蚀后即会漏水。我留神观察了其他机型,发现“吉普”发动机的结构却不是这样,封水圈槽在发动机机体上只有下沿,上沿设计在缸套上。在缸套上虽然也会腐蚀,但更换缸套要比更换缸体容易多了。这样的结构还有另外一个优点,即封水性好。其他发动机是不是也能这样设计呢? Engine cylinder sleeve seal ring groove is generally on the body. A big disadvantage of such a structure is that the upper edge is easily corroded by water, especially in the coastal areas. Will leak after corrosion. I observed the other models and found that the structure of the “Jeep” engine was not so. The sealing ring groove had only the lower edge on the engine body and the upper edge was designed on the liner. Although the cylinder liner will corrode, but to replace the cylinder liner easier than replacing the cylinder. This structure has another advantage, that is, sealing water is good. Is it possible to design other engines like this?