KOLBENMASCHINE OHNE PLEUELSTANGE

摘要

The present invention pertains to the field of piston machines, mainly those that include a mechanism without any connecting rod for converting the reciprocating movement of the pistons into a rotating movement of the output shaft. This invention essentially relates to a piston machine that includes a mechanism without any connecting rod and that comprises the following members: a body (1) with a plurality of cylinders (2); a plurality of pistons (5) with piston rods (6); sliding members (13) formed on the rods (6); a plurality of guides for the sliding members (13), each connected to the body (1) and capable of displacing the corresponding sliding member (13) along the axis of the corresponding cylinder (2); two coaxial cranked shafts (7) mounted in the body (1); and a crankshaft (10) mounted between the cranked shafts (7) and having its main journals (11) connected to said cranked shafts (7) while the rod journals (12) are connected to the corresponding piston rods (6). This machine is characterised in that each guide is made in the form of an annular member (14) comprising guiding surfaces (15). Each annular member (14) is mounted in the body (1) so as to be coaxial relative to the cranked shafts (7) and so as to be capable of rotation about the axes (16) of said cranked shafts (7), and also comprises means for fixing its position relative to the body (1). This structure ensures the automatic adjustment of the sliding member (13) guides into an optimal position relative to the axes of the corresponding cylinders (2) during the engine assembly, which prevents engine seizure.