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The reason is mainly that the piston of this diesel engine has only one oil ring, and there are only eight oil return holes (S195 diesel engine has two oil rings, and there are 24 oil return holes on the upper and lower sides, so the oil scraping effect is good. There is less chance of diesel engines experiencing such failures. The oil ring has a poor scraping effect. We made the following improvements: In the original oil ring groove below the piston turning a circular arc groove, the depth of 1.5mm, a width of 4.5mm, the top margin of the tank from the original oil hole 1mm or so, and then used in the arc groove A drill with a diameter of 3.0 mm drills 10 oil return holes and is spaced from the original oil return hole.
In this way, the number of oil return holes increased from 8 to 18, and the oil scraped by the oil ring can smoothly flow back to the oil pan, thereby avoiding the occurrence of the above failures.
Agricultural machinery piston improvement
Some S1100 diesel engines consume 1.0 to 1.5 kg of oil per 8 hours of operation, and accidents often occur due to burning of oil.