SU13402A1 - Internal combustion engine with auxiliary piston - Google Patents

Description

The present invention relates to internal combustion engines and is aimed at achieving the best possible cleaning of the engine cylinder from the exhaust mixture, for which purpose the valves are located in the piston,

In FIG. 1 shows a longitudinal section of the engine; FIG. 2-cross section; FIG. .3 - rear view of the engine, with the cover removed from the distribution gear box and the intake pipe removed; FIG. 4-piece switchgear .nr open the exhaust valve.

The device and the action of the engine is sledun) w, it is. In the lower part of cylinder E, piston A moves, rotated), by means of a connecting rod B, a flywheel (7, and in the upper part there are inlet and exhaust valves and auxiliary piston D, having a circular opening O in its bottom (Fig. 4) fresh intake and exhaust mix discharge, closed by discharge f and inlet e valves, than all these parts are tightly nril, facing one another and, thanks to their bevel at an angle of 45 °, can move relative to each other only in certain directions: piston D only for internal to valve f , valve e is only downward relative to valve f and up and down relative to piston D. Cylindrical

clan f is worn on the lower end of the inlet pipe N, which is integral with the lid, and can move upwards along it until the rim of its edge rests on its end; in its lower part, it ends, on the one hand, with a plate-shaped tide, on which spring M. rests, pressing it against the inlet valve e, and on the other side with a seat for seating the valve, e. Valves are actuated by cam-shaped fist mechanisms tj (Fig 3). Before starting the suction, the piston A is in the upper dead position and the auxiliary piston D is very close to it; hole O is closed. The next moment, when piston A starts to fall, the auxiliary piston D under the action of spring P (Fig. B) rises together with the exhaust valve f, the valve remains in place and thus opens the opening for admitting the mixture through the intake pipe F Then valve e, under the action of spring P, begins to rise, closes the opening for intake and thus allows piston A moving upwards to compress the mixture (2nd stroke); at the same time, the auxiliary piston D and the inlet clan are tightly pressed against the springs P and P, and taking the pressure of the mixture in the cylinder to the seats