| 摘要 |
The invention relates to the mechanical engineering, namely to the construction of internal combustion engines and can be used at the compressor manufacturing. The seal between the piston and the cylinder wall comprises compression rings, installed into the piston groove as a pack of several rings. The bead, separating the compression and oil-scraper rings, has the outer diameter equal to the diameter of the piston skirt. Between the inner diameter of the ring pack and the outer diameter of the piston groove it is formed a space, communicating with the combustion chamber. Claims: 6 Fig.: 2
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