| 摘要 |
<p>An internal-combustion engine (1) with improved reciprocating operation comprises at least one hollow cylinder (C), which contains a chamber for the evolution of a working fluid and has one end closed by a head and the opposite end closed by a piston (2) which can slide with a reciprocating rectilinear motion between a bottom dead center (BDC) and a top dead center (TDC), and a device (3) for converting the reciprocating rectilinear motion of the piston (2) into a rotary motion of an engine shaft (4) which comprises a push rod (5), which is substantially perpendicular to the engine shaft (4) and in which a first end (5a) is connected to the piston (2) and a second end (5b) is connected to at least one pin (13) for supporting at least one pusher roller (7) and at least one return roller (8), which rotate in mutually opposite directions, a rotating contoured body (9), which is fixed to the engine shaft (4) and is provided with at least one pusher circuit (10) and at least one return circuit (11), along which the respective rollers (8) travel, at least one guiding arm (12), in which one end is associated with the roller supporting pin (13) and the opposite end is articulated so that it can move about a fixed axis (D); the pusher and return circuits (10, 11) comprise respective circular arcs for the sliding of the pusher and return rollers (7, 8) which, when the piston (2) is proximate to the top dead center, are suitable to keep the push rod (5) and the piston (2) in a substantially stationary configuration over a predefined space or angle of rotation of the rotating contoured body, the volume of the chamber remaining substantially constant until explosion has occurred.</p> |
