DE168162C

DE168162C -

Info

Publication number: DE168162C
Application number: DENDAT168162D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PatentschriftPatent specification

JV* 168162 KLASSE 14 δ.JV * 168162 CLASS 14 δ.

Patentiert im Deutschen Reiche vom 30. August 1904 ab.Patented in the German Empire on August 30, 1904.

Vorliegende Erfindung betrifft Kraftmaschinen mit umlaufenden Kolben (bezw. Pumpen u. dgl.), bei denen der Arbeitszylinder zur Verminderung der Reibung zwischen ihm und der exzentrisch in ihm liegenden, umlaufenden Kolbentrommel an der Drehung teilnimmt.The present invention relates to engines with rotating pistons (respectively. Pumps and the like), in which the working cylinder to reduce the friction between it and the rotating piston drum located eccentrically in it participates in the rotation.

Hierbei haben die Kolbentrommel und der Arbeitszylinder die gleiche Winkelgesehwindigkeit. Wegen der exzentrischen Lagerung beider zueinander haben jedoch die Flächenelemente der sich berührenden Teile ihrer Stirnwände verschiedene Umfangsgeschwindigkeit, woraus sich eine relative Bewegung der beiden Stirnwände gegeneinander ergibt. Diese Verschiedenheit in der Umfangsgeschwindigkeit der Flächenelemente ist nahe an Trommelmitte verhältnismäßig groß und nimmt nach der Peripherie hin ab. Sie überträgt sich natürlich auch auf die umlaufenden Schieberkolben, und zwar ist sie um so größer, je größer der über die Peripherie der Trommel herausragende Teil des Kolbens ist. Als Folge dieser relativen Bewegung der beiden Stirnwände zueinander ergeben sich Nachteile für das Dichthalten dieser Teile. Jene Flächen müssen aneinander luftdicht schließen, denn die Kolben und die in der Trommel für sie vorgesehenen Nuten machen die Anbringung eines Dichtungsmittels an der Stirnwand der Trommel unmöglich. Auch in den Stirnwänden des Arbeitszylinders ist es nicht möglich, Dichtungsmittel, wie z. B. dichtende Ringe, anzubringen, da solche Mittel wegen der exzentrischen Lage der Trommel und des Zylinders eine zu ersterer exzentrische Lage haben würden, also von keinem oder doch nur geringem Nutzen wären. Aus diesen Gründen müssen die Maschinen so ausgeführt werden, daß die Enden der Stirnwand und die Kolben fast luftdicht an den Stirnwänden des Zylinders abdichten, damit nicht ein zu großer Teil des Treibmittels die Maschinen zwischen den Berührungsflächen jener Teile verläßt. Hierbei kann die Ausführung so sein, daß eine zu große Reibung nicht verursacht wird, da die Stirnwände des Zylinders an der Drehung teilnehmen. Bei der geringsten Temperaturveränderung aber haben die Trommel und die Kolben meist eine höhere Temperatur als die Zylinder, was zur Folge hat, daß die Trommel und die Kolben zwischen den Stirnwänden festgehalten werden bezw. mit so starker Reibung an diesen Wänden laufen, daß ein großer Teil der Kraft verloren geht. Es ist auch vorgekommen, daß die Kolben bei diesen Maschinen so fest zwischen den Zylinderstirnwänden der Kapsel stecken blieben, daß sie zerbrachen.The piston drum and the working cylinder have the same angular velocity. Because of the eccentric mounting of the two to one another, however, the surface elements have the touching parts of their end walls have different circumferential speeds, which results in a relative movement of the two end walls against each other. This difference in peripheral speed the surface element is relatively large close to the center of the drum and decreases towards the periphery. She transmits of course also on the rotating slide piston, and that is all the greater, the larger the part of the piston protruding beyond the periphery of the drum. as As a result of this relative movement of the two end walls to one another, there are disadvantages for keeping these parts tight. Those surfaces must be airtight to one another, because the pistons and the grooves provided for them in the drum make the attachment a sealant on the end wall of the drum impossible. It is also not in the end walls of the working cylinder possible, sealants, such as. B. sealing rings to attach, as such means because of the eccentric position of the drum and the cylinder an eccentric position to the former would have, so would be of little or no use. It is for these reasons that the machines must run this way that the ends of the end wall and the pistons are almost airtight on the end walls seal the cylinder so that too much of the propellant does not hit the machines leaves between the contact surfaces of those parts. Here the execution can be like this be that too much friction is not caused as the end walls of the cylinder take part in the rotation. At the slightest change in temperature, however, the drum and pistons usually have one higher temperature than the cylinder, which has the consequence that the drum and the pistons be held between the end walls respectively. with so much friction on them Walls run so that a large part of the force is lost. It has also happened that the pistons in these machines got stuck so firmly between the cylinder end walls of the capsule that they broke.

Der Zweck der vorliegenden Erfindung ist nun die Beseitigung dieser Übelstände. Dies wird dadurch erreicht, daß der Zylinder als Ring gestaltet ist, der zwischen den Stirnwänden frei beweglich ist und an der Drehung der Trommel nur infolge der Reibung anThe purpose of the present invention is now to remedy these inconveniences. this is achieved in that the cylinder is designed as a ring between the end walls is free to move and the rotation of the drum only as a result of the friction

Claims

same and to those attached to the drum or made in one piece with it Front walls takes part.

Fig. 1 shows a vertical cross section and FIG. 2 shows a vertical longitudinal section a machine according to this invention.

In the roller bearings 3, which are provided on the covers 4 of the housing 1, the shaft is mounted with a bore 5, in which a with the inlet pipe 7 of the propellant in Connection standing pipe 6 is loosely rotatable. The piston drum seated on shaft 2 8 has a channel 9 communicating with an opening 10 of the shaft 2.

An opening 11 is provided in the tube 6. The openings 10 and 11 meet during one revolution of the shaft and the drum once together, so that the propellant in the machine is let in and acts on the right side of the piston 12 (Fig. 1), which is displaceable in a radial groove 13 of the drum. During the rotation of the drum, the piston is pressed against the inner wall of the working cylinder 14 by centrifugal force. That cylinder consists of a ring which is freely movable between the end walls 15 (Fig. 2). One of these end walls is made in one piece with the drum 8, while the other is attached to the same in a suitable manner. The ring 14 is supported by rollers 16 carried, which are mounted in ball or roller bearings 17, and takes part in the rotation the drum part due to the friction between the ring and the end walls 15 and the friction between the ring and the drum which rests against the inside of the ring (Fig. 1). The ring 14 consists in two parts, so that a ring 18 made of steel can be fitted thereon. After this the two rings 14, 18 are placed on the drum, the end walls 15 pressed against it, including a nut 19 screwed onto the shaft 2 is used will. In the side surfaces of the ring 14 there are 20 sealing rings 21 in grooves, which are pressed against the inside of the end walls 15 by means of springs 22. At the inner sides of the end walls 15 are grooves 23 (Fig. 2), which serve as a guide serve for the piston 12. The used propellant flows through the opening 24 the end.

The operation of the device is as follows: The propellant gets into the Working space 25 of the machine when the opening 10 with the opening 11 of the pipe 6 collapses and causes the piston 12 to rotate until it reaches the point of contact is reached between the drum and the ring and the outlet opening 24 the point mentioned has exceeded. The propellant now flows out of the space on one side of the piston 12, while it flows in again on the other side.

In the grooves 23, their attachment by connecting the end walls with the Drum is enabled, the piston, even if it emerges from the drum, guided. So it cannot break off if it is subjected to the pressure of the propellant (Fig. 1). The piston is made of for the purpose of a good seal against the cylinder two or more plates (Fig. 1) that move depending on each other.

In the device described, a relative movement between the drum do not enter with the piston and the end walls of the cylinder. Rather, there is only a difference in movement at the contact surfaces of the ring and the end walls available. As the diversity the circumferential speed of the surface elements on the periphery of the end walls is relatively small, as noted at the beginning, so the friction of the surfaces moving on each other is correspondingly low.

In the drawing only one piston is shown, but it can also be two or several can be used. The operating medium can be steam or any other expansive substances exist. The invention can also be used for pumps and the like.

-r. Λ

Ρλτε ν τ-Α ν saying:

Power machine or pump with rotating piston and on rotation participating working cylinder in which the piston drum is mounted eccentrically with the slide piston, characterized in that, that the working cylinder consists of a ring which is formed between the one piece with the piston drum or specially manufactured end walls moved freely with a seal.

1 sheet of drawings.