FIELD: machine building.
SUBSTANCE: in ICE oil piston device containing the oil rings package and expander ring installed in one piston groove, on the work surface of the oil rings, except top ring, the axial slots are made. The expander ring is located above the top oil ring, at that number of slots and their dimensions are increased in each below installed oil ring. The work surfaces of all oil rings are made with chamfer towards top end face.
EFFECT: invention increases operation reliability of the internal combustion engine due to qualitative cleaning of the cylinder walls of the oil surpluses.
2 cl, 1 dwg
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RU2395739C1 |
