FIELD: engines and pumps.
SUBSTANCE: two-stroke engine comprises cylinder and piston 13. Aforesaid cylinder comprises intermediate head 32 arranged across its inner part. Aforesaid piston 13 has lower part 59 and at least one elongated element 66 passing upward from lower part 59. Straight sealing element 66 passes upward into the cylinder top part through the gap between intermediate cylinder head 32 and cylinder wall. Head arranged inside the cylinder makes an upper chamber, intermediate chamber and lower chamber of the cylinder.
EFFECT: simplified oiling of cylinder and possibility to use engine crankcase as delivery pump for blowing through.
21 cl, 28 dwg
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