Patent ID: 7191697
Filing Date: 2007-03-20
Classification: F01B,F02B

Abstract:
1. A piston mechanism with diverging pistons comprising: a crankcase with a crankshaft, a cylinder with inlet and outlet openings and at least two pistons of opposite directions of movement, and connecting members interacting with three crankpins of, the crankshaft, wherein one of the connecting members is joined with a middle crankpin and the other is joined with two outer crankpins, wherein at least one piston is firmly attached to connecting rods, which are rigidly fastened to one of the connecting members by their bases and are positioned in guide channels provided in the cylinder parallel to its axis, forming a synchronous group of connecting rods with a direction of movement corresponding to said connecting member, characterized in that the cylinder additionally comprises connecting rods which are firmly attached to at least one of pistons of opposite direction of movement, and by their bases are attached to the other connecting member, and are positioned in additional guide channels formed in the body of the cylinder parallel to abovementioned guide channels in alternating sequence with them, forming another synchronous group of connecting rods with a direction of movement corresponding to the other connecting member, wherein all guide channels are provided with through-cuts in the working surface of the cylinder with outlets into its cavity so that lateral faces of the connecting rods of the synchronous groups of the different directions facing the cavity of the cylinder form movable parts of its working surface, wherein the pistons are sequentially attached by their peripheries to the lateral faces of the connecting rods of the different synchronous groups, forming working chambers between them.