DE302933C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

There are known explosion engines with pistons rotating in opposite directions, in which the piston movements are transmitted to the connecting rods by swing arms.
With these machines it is possible to change the size of the compression space and thus the level of the compression pressure or the time of ignition by adjusting the swing arms at the same time

ίο be.

This is made possible by simultaneously adjusting the lower pivot points of the swing arms, which by means of a right-hand and left-hand thread and adjusting nut can be done. However, this adjustment of the swing arm pivot points has the disadvantage that the adjustment linkage always the record the entire piston pressure immediately after compression or at the time of the explosion must, because at this point in time the cranks are at or near dead center, whereby the stresses are very high and the safety of the transmission is endangered.

- In order to remedy this disadvantage, in the explosion engine according to the invention the piston pressures when reaching or exceeding a certain level towards the end of compression or at the moment the explosion partially and temporarily of elastic organs, such as spring or air buffers, recorded.

For this purpose, the lower ends of the swing arms are hinged to intermediate levers, which are connected by means of coupling rods to a rocker arm, which is under the influence of the spring or air buffer.

This reduces the journal pressures of the piston rods towards the end of the compression or are very high at the time of the explosion, partly from the spring or air buffer recorded and this amount from the buffer with a more favorable crank position, d. H. during the expansion, with which the pin pressures are known to decrease very rapidly, again be delivered to the transmission.

So it is relieved by the new arrangement on the one hand the linkage and on the other hand made the whole drive softer and less bumpy.

In the drawing, FIG. 1 shows a longitudinal section through one with the buffer device provided explosion engine; Fig. 2 is a section through the crankshaft.

Here a, a denotes the working cylinders, b, b denote the pistons rotating in opposite directions, c denotes the common compression and explosion space, d, d denote the pump cylinders and e, e denote their pistons.

The pistons b and β are firmly connected to one another by means of the hollow piston rods f.

The fresh air sucked into the pump cylinder d through the openings g is after compression by the pistons e through the channels h and. the channel i introduced into the working cylinder α , while the channel k is used to escape the exhaust gases.

I is the cooling water room.

The hollow piston rods f accommodate rods m, η , the ends of which are spherical

are rounded and are placed on the one hand in correspondingly curved bearing surfaces of the working piston b and pump piston e, on the other hand in similar bearing surfaces of the upper ends of the swing arms ο .

This storage of the rods m, η allows the same can move somewhat from the axis angle of the piston rods f to the arc movement of the upper ends of the

ίο swing arms f to follow.

The swing arms ο are connected to the crankshaft p by the connecting rods q. Instead of the cranks, the eccentrics q ^{1 shown in} FIG. 2 can be used, which makes it possible to use eccentric brackets with ball race rings and thereby create favorable friction conditions.

The lower ends of the swing arms 0 are articulated by pins r to intermediate levers s, which are rotatably mounted on pins t on the machine frame.

On these intermediate levers s, rods ν engage on pins u , which are connected by pins w, w ¹ to a rocking lever y mounted on pin χ on the machine frame.

The end of this rocker arm has a

oval recess ζ in which a pin 2 carried by the piston rod 3 engages.

The piston 4 connected to the rod 3 moves in one. Cylinder 5 and is standing under the influence of a spring 6 or under air or gas pressure. The spring force or the air or gas pressure should be approximately the compression pressure assumed to be normal Machine conform. The two covers 7 and 8 of the cylinder 5 are adjustable, for example screwed to the spring force or the content of the buffer cylinder 5 to be able to regulate.

The machine works as follows:

During the internal movement of the two pistons b at the end of the compression, the pressure becomes so high that the swing arms 0 rotate around the points of application of the piston rods m, i.e. around their upper pivot points, namely the left swing arm 0 swings to the right and the right swing arm 0 to the left, since the crankshaft ft rotates in the direction of the arrow in the direction of the clockwise movement and the two connecting rods q move towards the crankshaft, i.e. inward.

As a result of this movement, the rods ν are pressed inwards, so that the lever y swings to the left and the piston 4 moves to the left and the spring 6 is compressed.

When the explosion occurs, the connecting rods q. can not follow immediately, so that the swing arms 0 rotate about their center points and the piston 4 also moves to the left again and the spring 6 is further compressed.

During the explosion, the tension of the spring 6 then takes place, which is then driving acts on the linkage.

Claims (2)

Patent Claims: 1. Explosive engine with pistons rotating in opposite directions, whose movements are controlled by Swing arms are transferred to the connecting rods, characterized in that the swing arms control the piston pressures when reaching or exceeding a certain height towards the end of the compression or in the event of an explosion partially and temporarily transferred to elastic organs in the form of spring or air buffers. 2. Explosive engine according to claim i, characterized in that the lower ends of the swing arms (0) are hinged to intermediate levers (s), of which coupling rods (v) lead to a rocker arm (y) which is connected to the buffer device. For this purpose ι sheet of drawings.