| 摘要 |
<p>A piston mechanism comprises a crankcase (4), a crankshaft (7) with three crankpins (48, 50, 51), a cylinder (1) with diverging pistons (5, 6) defining working chambers (10, 11, 12, 13) having inlet (14) and outlet (15) openings, and two connecting members (27, 28), one of which cooperates with the middle crankpin (48) and the other with the two outer crankpins (50, 51). In the body of the cylinder (1) there are guide channels (16, 17) provided, in which connecting rods (19, 20) are arranged in alternating sequence, which are attached to one (27) or the other (28) connecting member by their bases, forming two synchronous groups of connecting rods. The guide channels (16, 17) are provided with through-cuts (18) in the working surface of the cylinder with outlets into its cavity so that the faces (21) of the connecting rods of the synchronous groups facing the cavity of the cylinder form movable parts of its working surface. The pistons (5, 6) are attached by their peripheries to the lateral faces (21) of the connecting rods of one (19) or the other (20) synchronous group sequentially and spaced from each other, forming two movable rigid carcasses inserted in one another, connecting member - synchronous group of connecting rods - pistons", moving in opposite directions. This construction allows the arrangement of a number of diverging pistons (5, 6) in the cavity of a cylinder, forming working chambers (10, 11, 12, 13) between them, in which different strokes of independent working cycles are carried out simultaneously.</p> |
