There are three viewing windows between the cylinder and the crankcase
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This post was last edited by backcat666 on 2017-8-29 21:53. Why is it set up to be so long? Is the bend of the spark plug rod unaffected? What is the function of each of the three windows?
You can go and take a look at the compressor’s drawings; send a photo so I can see them
The first one is the crosshead observation window, and the next two are dual middle bodies. The internal arrangements of the two mesomers also vary.
Looking from the cylinder outward, the first one is the packing chamber; the packing needs to be installed through this window； The second one is the intermediate section, which contains intermediate fillers; the gas that leaks from the first section is sealed off by these fillers. Additionally, there is an oil wiper ring on the side of the second section that is close to the third section, preventing the lubricating oil thrown out by the crosshead from entering the intermediate section. Thus, the second window serves two functions: blocking gas and blocking oil ； The third is the crosshead wall.
Because the crosshead is relatively large, it has a long layout; as can be seen from the photos, there are three oiling points here, and three windows for checking the crosshead as well as the lubrication effect. The degree of bending is not affected, as the crosshead and connecting rod convert the rotational motion of the crankshaft into linear reciprocating motion of the connecting rod.
Observation window. Note: It is necessary to observe the operation of components such as the crosshead during operation.