FIELD: mechanical engineering.
SUBSTANCE: mechanism comprises crankcase, crankshaft with three crankpins, cylinder with diverging pistons that define working chambers with inlet and outlet ports, and two linking members. One of the linking members cooperates with the intermediate crankpin, and the other one cooperates with the end crankpins. The cylinder has guiding passages that receives ties whose bases are secured to one or the other linking member to define two synchronous tie groups. The guiding passages are provided with through slots on the working surface of the cylinder. The outlets of the passages are arranged so that the sides of the ties of the synchronous groups that face the cylinder space define movable sections of its working surface. The pistons are secured to the sides of ties of one or the other synchronous group to define two movable rigid frames that move in opposite directions.
EFFECT: enhanced specific power.
45 cl, 18 dwg
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