DE710141C - Internal combustion engine with reciprocating pistons - Google Patents

Description

Internal combustion engine with reciprocating pistons Internal combustion engines with reciprocating pistons, one of which stands still and the other over it slides back and forth and with them. both between the two pistons as well as between the reciprocating piston and the cylinder cover Work space is arranged, are already known.

The invention aims, the excessive heating of the reciprocating To prevent double-acting so-called beaker pistons and by arranging two such intertwining piston pairs to increase the performance of my cylinder.

The better cooling is achieved by the fact that the piston going back and forth, on both sides of which there is a work space, in a known manner a double one Has floor in which there is a free space through which the Cooling air generated by circular or similar fans can enter.

In the drawings, a means the piston reciprocating, to both sides of which are working spaces, fine fixed pistons, which protrudes into the reciprocating beaker piston a, c and cl the purge air slots the working space between the stationary and the reciprocating piston and d the cooling air slots.

Fig. I shows the machine at that moment; where the back and forth going piston a have reached the outer end of the stroke and the cooling air through their hollow piston head flows, while Fig. a shows the position of the piston on the inside Stroke end shows where the reverse flush is in the working space in the inner part of the beaker piston a takes place.

For this purpose are in the piston wall of the going back and forth Piston a at the level of the scavenging air inlet duct (section z, 3, q.! And -5) inlet openings c intended for the purge air as well as the opposite one. Corresponding page Outlet openings cl for the exit of the exhaust gases.

In order to achieve a double action of the piston a, one fuel valve is moved into the interior of the stationary piston / and is controlled by means of a linkage from the crank arm S designed as a neck disk (Fig. I left). The other fuel valve is in the space between the. two beaker pistons moving in opposite directions.

About the higher piston temperature resulting from the double action The one most exposed to burns is to reduce it to a tolerable level Piston head of the reciprocating Kolbensa in a known manner in two with one Interspace b provided piston heads divided, which by, their curved shape a Prevent tearing of the piston crowns and the flow of the cooling air favorably should influence. This space is in a known manner through in the piston wall recessed openings d connected to the outside, so that, as in Fig, i to can be seen, these openings d with the cooling air inlet channel and also at the same time are in communication with the cooling air outlet duct.

This well-known type of air cooling that changes with every going back and forth repeatedly, is sufficient to keep the bulb temperature within moderate limits. The connecting rod is attached by means of a piston pin, which is attached to the outside of the Köl - @> "henwandung extended approaches is stored (Fig.5). The fork-shaped rear part of the stationary piston f enables the piston to move back and forth a, which also gives it an inner straight line, which is a premature one-sided wear of the cylinder and calving prevented.

Claims (1)

PATENT CLAIM Internal combustion engines with reciprocating pistons, one of which is fixed and one of which moves to both sides of the other there is a working space for each of the beaker pistons, characterized in that that two fixed and two reciprocating pistons are arranged so that the reciprocating pistons work in opposite directions and enclose a working space and that the pistons going back and forth in a manner known per se one by two oppositely curved piston heads have formed cooling space (b), the with each Reciprocation of the piston (a) is traversed by cooling air.