EP0102555B1 - Rotary piston machine - Google Patents
Rotary piston machine Download PDFInfo
- Publication number
- EP0102555B1 EP0102555B1 EP83107898A EP83107898A EP0102555B1 EP 0102555 B1 EP0102555 B1 EP 0102555B1 EP 83107898 A EP83107898 A EP 83107898A EP 83107898 A EP83107898 A EP 83107898A EP 0102555 B1 EP0102555 B1 EP 0102555B1
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- EP
- European Patent Office
- Prior art keywords
- blades
- rollers
- housing
- rotary piston
- radial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- JXYWFNAQESKDNC-BTJKTKAUSA-N (z)-4-hydroxy-4-oxobut-2-enoate;2-[(4-methoxyphenyl)methyl-pyridin-2-ylamino]ethyl-dimethylazanium Chemical compound OC(=O)\C=C/C(O)=O.C1=CC(OC)=CC=C1CN(CCN(C)C)C1=CC=CC=N1 JXYWFNAQESKDNC-BTJKTKAUSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0827—Vane tracking; control therefor by mechanical means
- F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
- F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F01C1/352—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes being pivoted on the axis of the outer member
Definitions
- a generic rotary piston machine has become known from US-A-2 124 918, in which the wings in particular are not arranged so that they are able to work in a balanced manner. This is mainly due to the fact that the wings are held on one side, which certainly leads to an imbalance, which cause uneven wear and thus jeopardize the good seal that is essential for proper functioning.
- the one-sided mounting of the wing with its disadvantages also requires - if the known rotary piston machine should have an acceptable service life - the highest level of accuracy in manufacture, which from an economic point of view only appears extremely conditional, if at all portable.
- the present invention has for its object to solve the sealing problems of the wing against the inner wall of the housing with a low and a high level of functional reliability guaranteeing construction.
- the aim is that the new design is durable, low-loss and last but not least versatile, so z.
- each rod can be changed in length
- the wings in the slots of the rollers are additionally guided radially, with the aid of dowel pins, which extend from the bottom of the guide slots of the rollers and are mirror images of the center plane bisecting the depth of the wings, on which the wings can be moved.
- a special embodiment can be seen in the fact that the circular rotary piston designed as a hollow cylinder is easily ground into the circular inner wall of the housing. This also avoids line contact between the housing and the rotary lobe and replaces it with a flat contact. The grinding could also be done by other measures, e.g. B. be replaced by arrangement of inserts.
- each of the rollers receiving the vanes is connected to at least one radially inwardly directed rod, which penetrates a radial opening of the hollow cylindrical rotary piston with plenty of play and engages a central pin which is stationary is stored.
- each rod is connected directly or indirectly to the respective wing, parts of the connection being telescopically screwed together.
- the wings are guided radially in addition to the rod guide, with the aid of dowel pins provided in mirror image to the center plane.
- the rotary piston 1 is also fitted into the housing 4 in such a way that it is easily movable in every direction of rotation about its axis Z2 and its circular outer surface continuously touches the circular, i.e. cylindrical inner wall 5 of the housing 4 with the axis Z1 at a full angular rotation.
- the eccentric position of the rotary piston 1 in the housing 4 with the axis Z1 is thus clarified.
- Rotatable rollers 6, whose longitudinal axes Z3 parallel to the axes Z1. Z2 run, are provided in the rotary piston 1 in geometric regularity; they have radial grooves or slots into which wings 7 engage with a sliding fit, the surfaces of which facing the housing inner wall 5 are adapted to the curvature of the wall. If a wing 7 completely fills the slot of the roller 6 and if a connecting line between the roller axis Z3 and the housing axis Z1 also runs through the axis Z2 of the rotary piston 1, then the curved surface of the wing 7 touches the housing inner wall 5 in a sliding manner.
- multi-part and connected to the respective wing 7 rod 8 passes through a bore of the roller 6 and with plenty of play a correspondingly shaped opening 9 of the hollow cylindrical rotary piston 1, so that this rod 8 firmly connected to the wing 7 about the axis of rotation Z3 of the roller 6 is sufficiently pivotable is.
- This version applies to each roller 6, so that eight rods 8 protrude into the rotary lobe cavity in the exemplary embodiment.
- These rods 8 are articulated to a stud bolt 10 provided in the center Z1 of the housing 4 and rigidly connected to the housing 4.
- a rotary piston machine illustrates the essence of the invention; this does not restrict the intended use.
- the latter When designing the machine, the latter must be adapted to the intended use and be provided with the additional features or parts corresponding to the purpose. If this rotary lobe machine is used, for example, as a device for operating a heat pump, air conditioning system or the like, then it must be appropriately supplemented in accordance with DE-A-3 129 133.3-13 (to which express reference is made). H. be provided with inlet and outlet openings, etc., which are generally not constructed in the same way as in machines which, for. B. can be used as an expander of gases. When it is designed as a rotary piston engine, the design will experience changes depending on whether the respective machine is to be operated using the Otto or Diesel process.
- the exemplary embodiment according to FIG. 3 differs from that of the previous figures. That the rotary piston 1 in the Inner wall 5 of the housing 4 is ground. In other words, the rotary piston 1 does not move about the axis Z2, but about the axis Z4.
- the grinding-in dimension M is illustrated by a dashed line 11, the curvature of which is identical to the curvature of the inner wall 5 of the housing 4. It goes without saying that the grinding-in dimension M is shown oversized and in reality moves within narrow limits.
- pins extending from the base of the guide slots 14 of the rollers 6 are provided, on which the wing 7 can be moved radially to the axis Z1. These pins, not shown, must be provided at the same distance from a plane which halves the depth of the housing 4.
- This rod 8 also has a turnbuckle-like intermediate piece 18, so that the radial distance of the respective wing 7 from the axis Z1 is adjustable.
- rods 8 must somehow find their place on the bolt 10 with their inner ends.
- An axial succession, as indicated in FIG. 2, is only conceivable with a few wings 7, since tilting forces on the wings cannot be ruled out due to the axial offset.
- cranked rods 8 Another feasible way can be seen in that the rods 8 are connected to a single star bearing on the bolt 10. It is also to be taken for granted that rod constructions must be chosen which can be installed without great difficulty.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Rotary Pumps (AREA)
- Hydraulic Motors (AREA)
- Centrifugal Separators (AREA)
- Massaging Devices (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Drehkolben-Maschine mit in einem Gehäuse exzentrisch gelagertem Drehkolben, der auf den Umfang verteilte, in ihm drehbar gelagerte, mit ihren Achsen parallel zur Drehkolbenwelle verlaufende Walzen aufweist, in denen mit der Gehäuseinnenwand zusammenwirkende, auf die Achse des Gehäuses radial ausgerichtet gehaltene Flügel geführt und in ihrem radialen Abstand zur Gehäuseachse durch Stangen fixiert sind, wobei der kreisrunde, als Hohlzylinder ausgeführte Drehkolben über entsprechenende Lagerschilde und Lager derart im Gehäuse gelagert ist, daß er über seine gesamte Tiefe an einer Stelle die Gehäuseinnenwand gleitend berührt, wobei
- a) die die Flügel führenden Walzen über ihre ganze Länge - bis auf radiale Durchbrüche in den Walzen für die die radiale Halterung der Flügel bildenden Stangen - den gleichen Querschnitt aufweisen und sie füllen querschnittsgleich die axiale Tiefe des Gehäuses aus ;
- b) die Walzen nehmen die ebenfalls über ihre ganze Länge querschnittsgleichen Flügel in die Walzen nur teilweise durchsetzenden Schlitzen auf ;
- c) die Tiefe der die Flügel aufnehmenden Schlitze der Walzen ist mindestens so groß, wie das radiale Höhenmaß der an ihren äußeren Enden dem Krümmungsradius der Gehäuseinnenwand angepaßten Flügel ;
- d) jede die Flügel aufnehmende Walze steht mit mindestens einer der radial nach innen gerichteten Stangen in Verbindung, wobei jede Stange mit reichlich Spiel einen radialen Durchbruch des hohlzylindrischen Drehkolbens durchsetzt und an einem zentralen Bolzen angreift, der ortsfest gelagert ist.
- a) the rollers guiding the wings over their entire length - except for radial openings in the rollers for the rods forming the radial mounting of the wings - have the same cross section and they fill the axial depth of the housing with the same cross section;
- b) the rollers take up the vanes, which likewise have the same cross-section over their entire length, and only partially penetrate the slots in the rollers;
- c) the depth of the slots of the rollers receiving the vanes is at least as great as the radial height dimension of the vanes adapted at their outer ends to the radius of curvature of the inner wall of the housing;
- d) each roller receiving the wing is connected to at least one of the radially inwardly directed rods, each rod penetrating a radial opening of the hollow cylindrical rotary piston with plenty of play and engaging a central bolt which is mounted in a stationary manner.
Bei derartigen Drehkolben-Maschinen, die verschiedenen Zwecken dienen können, sind Verluste durch Reibung, Verschleiß und Überlastung nicht auszuschließen. Es ist daher verständlich, daß es keinesfalls an Vorschlägen gefehlt hat, um den aufgetretenen Schwierigkeiten Herr zu werden. Das Hauptproblem bei der Verwendung von Drehkolben liegt aber bei der Abdichtung der Flügel.In such rotary lobe machines, which can serve different purposes, losses due to friction, wear and overload cannot be ruled out. It is therefore understandable that there has been no shortage of proposals to deal with the difficulties that have arisen. The main problem when using rotary lobes is the sealing of the wings.
Eine gattungsgemäße Drehkolben-Maschine ist durch die US-A-2 124 918 bekannt geworden, bei der insbesondere die Flügel nicht so angeordnet sind, daß sie ausgewogen zu arbeiten vermögen. Dies beruht in der Hauptsache darauf, daß die Flügel einseitig gehalten sind, was mit Sicherheit zu einer Unwucht führt, die ungleiche Abnutzungen verursachen und damit die für eine einwandfreie Funktion unerläßliche gute Abdichtung in Frage stellen. Die einseitige Lagerung der Flügel mit ihren Nachteilen erfordert darüber hinaus - wenn die bekannte Drehkolben-Maschine eine noch annehmbare Lebensdauer haben soll - höchste Genauigkeit bei der Herstellung, was wirtschaftlich gesehen nur äußerst bedingt, wenn überhaupt tragbar erscheint.A generic rotary piston machine has become known from US-A-2 124 918, in which the wings in particular are not arranged so that they are able to work in a balanced manner. This is mainly due to the fact that the wings are held on one side, which certainly leads to an imbalance, which cause uneven wear and thus jeopardize the good seal that is essential for proper functioning. The one-sided mounting of the wing with its disadvantages also requires - if the known rotary piston machine should have an acceptable service life - the highest level of accuracy in manufacture, which from an economic point of view only appears extremely conditional, if at all portable.
Bei einer anderen bekannten Bauart gemäß der US-A-3 771 902 ist zwar die einseitige Halterung der Flügel vermieden und durch eine Stangenkonstruktion ersetzt, jedoch fehlen bei dieser Ausführung Walzen, in denen die Flügel geführt sind. Dies zwingt den Konstrukteur, daß die Flügel gewissermaßen spitz auslaufen müssen, was abdichtungstechnisch erhebliche Nachteile mit sich bringt.In another known design according to US-A-3 771 902, the one-sided mounting of the wings is avoided and replaced by a rod construction, but in this embodiment there are no rollers in which the wings are guided. This forces the designer that the wings have to be somewhat pointed, which has considerable disadvantages in terms of sealing technology.
Ausgehend von der gattungsgemäßen Drehkolben-Maschine liegt der vorliegenden Erfindung die Aufgabe zugrunde, die Abdichtungsprobleme der Flügel gegenüber der Innenwandung des Gehäuses mit einem geringen und eine hohe Funktionssicherheit verbürgenden Bauaufwand zu lösen. Außerdem ist angestrebt, daß die neue Bauart langlebig, verlustarm und nicht zuletzt vielseitig verwendbar ist, also z. B. dem Entspannen von Gasen, dem Komprimieren von Luft o. dgl., Antriebszwecken usw. dienen kann.Starting from the generic rotary lobe machine, the present invention has for its object to solve the sealing problems of the wing against the inner wall of the housing with a low and a high level of functional reliability guaranteeing construction. In addition, the aim is that the new design is durable, low-loss and last but not least versatile, so z. B. the relaxation of gases, the compression of air or the like, drive purposes, etc.
Gelöst wird diese Aufgabe dadurch, daß
der Durchbruch in der Walze als Bohrung ausgebildet ist,This problem is solved in that
the opening in the roller is designed as a bore,
jede Stange längenveränderbar ist,each rod can be changed in length,
die Flügel in den Schlitzen der Walzen zusätzlich radial geführt werden, mit Hilfe von, vom Grund der Führungsschlitze der Walzen ausgehenden, spiegelbildlich zu der die Tiefe der Flügel halbierenden Mittelebene vorgesehenen Paßstiften, auf denen sich die Flügel verschieben lassen.the wings in the slots of the rollers are additionally guided radially, with the aid of dowel pins, which extend from the bottom of the guide slots of the rollers and are mirror images of the center plane bisecting the depth of the wings, on which the wings can be moved.
Zunächst ist festzustellen, daß diese Maßnahmen mit einem verhältnismäßig geringen Produktionsaufwand durchführbar sind, so daß keine untragbar hohen Unkosten befürchtet werden müssen. Außerdem ist klar erkennbar, daß durch die vorgeschlagenen Maßnahmen eine vorzügliche Führung der Flügel gegeben ist, so daß Abdichtprobleme nicht auftreten werden. Letzteres nicht zuletzt deshalb, weil durch die zusätzliche Führung der Flügel durch die Paßstifte Kippmomente der Flügel, ungleiche Abnutzung o. dgl. ausgeschlossen sind, was bedeutet, daß die neue Bauart langlebig und verlustarm sein wird. Durch die Längenveränderbarkeit der Stangen können die Reibungsverluste zwischen den Laufflächen der Flügel und der Gehäuseinnenwand in tragbaren Grenzen gehalten werden, d. h., sie lassen sich praktisch auf den Wert Null reduzieren. Außerdem läßt sich die neue Bauart bequem auf besondere Betriebsverhältnisse einstellen, die bei den zahlreichen Anwendungsmöglichkeiten des Erfindungsgegenstandes stark unterschiedlich sind.First of all, it should be noted that these measures can be carried out with relatively little production effort, so that there is no fear of prohibitively high costs. In addition, it can be clearly seen that the proposed measures give the wings excellent guidance, so that sealing problems will not arise. The latter not least because the additional guidance of the wing through the dowel pins prevents the wing from tilting, uneven wear or the like, which means that the new design will be long-lasting and low-loss. The variability in length of the rods means that the frictional losses between the running surfaces of the wings and the inner wall of the housing can be kept within acceptable limits. that is, they can practically be reduced to zero. In addition, the new design can be easily adjusted to special operating conditions, which are very different in the numerous applications of the subject of the invention.
Eine besondere Ausführungsform ist darin zu sehen, daß der kreisrunde, als Hohlzylinder ausgeführte Drehkolben leicht in die an sich kreisrund verlaufende Innenwand des Gehäuses eingeschliffen ist. Dadurch ist auch die Linienberührung zwischen Gehäuse und Drehkolben vermieden und durch eine flächige Berührung ersetzt. Das Einschleifen könnte auch durch andere Maßnahmen, z. B. durch Anordnung von Einsätzen ersetzt sein. Daß beim Einschleifen des Drehkolbens in die Gehäuseinnenwand die Krümmungen der Flügel gegenüber der Krümmung des Einschliffes nicht mehr vollkommen exakt sind, hat wegen der Geringfügigkeit keinen schädlichen Einfluß auf die Dichtigkeit im Einschliffbereich.A special embodiment can be seen in the fact that the circular rotary piston designed as a hollow cylinder is easily ground into the circular inner wall of the housing. This also avoids line contact between the housing and the rotary lobe and replaces it with a flat contact. The grinding could also be done by other measures, e.g. B. be replaced by arrangement of inserts. The fact that when the rotary piston is ground into the inner wall of the housing, the curvatures of the wings are no longer completely exact compared to the curvature of the ground section, because of the insignificance it has no harmful effect on the tightness in the ground section area.
Wiederum für die Praxis günstig ist es, wenn die Tiefe der die Flügel spielfrei aufnehmenden Schlitze der Walzen mindestens so groß ist, wie das radiale Höhenmaß der Flügel.It is again advantageous in practice if the depth of the slots in the rollers that accommodate the vanes without play is at least as great as the radial height dimension of the vanes.
Eine günstige Bauart zum radialen Führen der Flügel ergibt sich, wenn jede der die Flügel aufnehmenden Walzen mit mindestens einer radial nach innen gerichteten Stange in Verbindung steht, die mit reichlich Spiel einen radialen Durchbruch des hohlzylindrischen Drehkolbens durchsetzt und an einem zentralen Bolzen angreift, der ortsfest gelagert ist. In diesem Zusammenhang wird ferner vorgeschlagen, daß eine jede Stange mittelbar oder unmittelbar mit dem jeweiligen Flügel in Verbindung steht, wobei Teile der Verbindung teleskopartig ineinandergeschraubt sind.A favorable design for the radial guidance of the vanes results if each of the rollers receiving the vanes is connected to at least one radially inwardly directed rod, which penetrates a radial opening of the hollow cylindrical rotary piston with plenty of play and engages a central pin which is stationary is stored. In this context, it is also proposed that each rod is connected directly or indirectly to the respective wing, parts of the connection being telescopically screwed together.
Um Kippmomente zu vermeiden, wird schließlich vorgeschlagen, daß die Flügel zusätzlich zu der Stangenführung radial geführt sind, mit Hilfe von spiegelbildlich zu der Mittelebene vorgesehenen Paßstiften.In order to avoid tilting moments, it is finally proposed that the wings are guided radially in addition to the rod guide, with the aid of dowel pins provided in mirror image to the center plane.
Anhand der Zeichnungen wird eine Ausführungsform der erfindungsgemäßen Drehkolben-Maschine und das Wesen der Erfindung offenbart. Es zeigen
- Figur 1 eine Drehkolben-Maschine in Seitenansicht, im geöffneten Zustand ;
- Figur 2 die gleiche Drehkolben-Maschine im Axialschnitt und
- Figur 3 eine aufgebrochene Seitenansicht der Drehkolben-Maschine mit Einzelheiten, insbesondere mit eingeschliffenem Drehkolben.
- Figure 1 shows a rotary piston machine in side view, in the open state;
- Figure 2 shows the same rotary piston machine in axial section
- Figure 3 is a broken side view of the rotary piston machine with details, in particular with a ground rotary piston.
Worin sich die erfindungsgemäße Drehkolben-Maschine von den bekannten Maschinen unterscheidet, wird durch die Beschreibung der Maschine, deren Wirkungsweise und deren Steuerung verdeutlicht. Gemäß den Figuren 1 und 2 ist der kreisrunde, als Hohlzylinder ausgeführte Drehkolben 1 mit seiner Welle 2 mit Hilfe von Lagern 3 um eine Achse Z2 drehbar gelagert, und zwar derart, daß seine axiale Stärke die Tiefe des Gehäuses 4 ausfüllt bzw. daß er die zylindrische Innenwand (Lauffläche) 5 des Gehäuses 4 an einer Stelle gleitend berührt.What distinguishes the rotary piston machine according to the invention from the known machines is illustrated by the description of the machine, its mode of operation and its control. According to Figures 1 and 2, the circular, designed as a hollow cylinder rotary piston 1 with its shaft 2 with the help of bearings 3 rotatably about an axis Z2, in such a way that its axial thickness fills the depth of the housing 4 or that it cylindrical inner wall (tread) 5 of the housing 4 slidably touched at one point.
Der Drehkolben 1 ist in das Gehäuse 4 außerdem so eingepaßt, daß er in jeder Drehrichtung um seine Achse Z2 leicht beweglich ist und seine kreisrunde Mantelfläche die kreisrunde, also zylindrische Innenwand 5 des Gehäuses 4 mit der Achse Z1 bei einer vollen Winkeldrehung ununterbrochen gleitend berührt. Die exzentrische Lage des Drehkolbens 1 im Gehäuse 4 mit der Achse Z1 ist damit verdeutlicht.The rotary piston 1 is also fitted into the housing 4 in such a way that it is easily movable in every direction of rotation about its axis Z2 and its circular outer surface continuously touches the circular, i.e. cylindrical
Drehbewegliche Walzen 6, deren Längsachsen Z3 parallel zu den Achsen Z1. Z2 verlaufen, sind in dem Drehkolben 1 in geometrischer Regelmäßigkeit vorgesehen ; sie weisen radiale Nuten bzw. Schlitze auf, in welche Flügel 7 mit Gleitsitz eingreifen, deren der Gehäuseinnenwand 5 zugekehrten Flächen der Wandkrümmung angepaßt sind. Wenn ein Flügel 7 den Schlitz der Walze 6 ganz ausfüllt und wenn eine Verbindungslinie zwischen der Walzenachse Z3 und der Gehäuseachse Z1 auch durch die Achse Z2 des Drehkolbens 1 verläuft, dann berührt die gewölbte Fläche des Flügels 7 die Gehäuseinnenwand 5 gleitend.
Eine bzw. mindestens eine entlang der erwähnten Verbindungslinie gerade verlaufende, gfs. mehrteilige und an den jeweiligen Flügel 7 angeschlossene Stange 8 durchsetzt eine Bohrung der Walze 6 und mit reichlich Spiel einen entsprechend geformten Durchbruch 9 des hohlzylindrischen Drehkolbens 1, so daß diese fest mit dem Flügel 7 verbundene Stange 8 um die Drehachse Z3 der Walze 6 genügend schwenkbar ist. Diese Ausführung trifft für jede Walze 6 zu, so daß beim Ausführungsbeispiel acht Stangen 8 in den Drehkolbenhohlraum hineinragen. Diese Stangen 8 sind an einem im Zentrum Z1 des Gehäuses 4 vorgesehenen und mit dem Gehäuse 4 starr verbundenen Stehbolzen 10 angelenkt. Dadurch, daß die Drehkolbenflügel nicht - wie herkömmlich - auf die Drehkolbenachse Z2, sondern auf die Gehäuseachse Z1 zentriert sind, gibt es in der neuen Drehkolben-Maschine nur rotierende Massen ohne Massenverschiebungen und die Flügel 7 bleiben mit der Gehäuseinnenwand 5 immer in gleitender Flächenberührung.One or at least one gfs running straight along the mentioned connecting line. multi-part and connected to the respective wing 7
Da die Länge der Stangen 8 verstellbar ausgeführt ist, kann die Reibung zwischen den Laufflächen der Flügel 7 und der Lauffläche der Innenwand 5 des Gehäuses 4 auf Null reduziert werden. Darüber hinaus gibt es keinerlei Abdichtungsschwierigkeiten. Durch die Flächenberührungen werden keine besonderen Anforderungen an den Fachmann für Dichtprobleme gestellt.Since the length of the
Das beschriebene Ausführungsbeispiel einer Drehkolben-Maschine verdeutlicht das Wesen der Erfindung ; der Verwendungszweck wird dadurch nicht eingeschränkt. Bei der Konstruktion der Maschine muß letztere dem Verwendungszweck angepaßt und mit den dem Zweck entsprechenden zusätzlichen Merkmalen bzw. Teilen versehen werden. Wird diese Drehkolben-Maschine beispielsweise als Vorrichtung zum Betrieb einer Wärmepumpe, einer Klimaanlage o. dgl. benutzt, dann muß sie gemäß der DE-A-3 129 133.3-13 (auf die ausdrücklich Bezug genommen wird) in zweckentsprechender Weise ergänzt, d. h. mit Ein, und Auslaßöffnungen usw. versehen werden, die im allgemeinen nicht in gleicher Weise konstruiert sind, wie bei Maschinen, die z. B. als Entspanner von Gasen verwendet werden. Bei der Ausführung als DrehkolbenMotor wird die Konstruktion wiederum Änderungen erfahren, je nach dem, ob die jeweilige Maschine nach dem Otto- oder Diesel-Verfahren betrieben werden soll.The described embodiment of a rotary piston machine illustrates the essence of the invention; this does not restrict the intended use. When designing the machine, the latter must be adapted to the intended use and be provided with the additional features or parts corresponding to the purpose. If this rotary lobe machine is used, for example, as a device for operating a heat pump, air conditioning system or the like, then it must be appropriately supplemented in accordance with DE-A-3 129 133.3-13 (to which express reference is made). H. be provided with inlet and outlet openings, etc., which are generally not constructed in the same way as in machines which, for. B. can be used as an expander of gases. When it is designed as a rotary piston engine, the design will experience changes depending on whether the respective machine is to be operated using the Otto or Diesel process.
Das Ausführungsbeispiel gemäß Figur 3 unterscheidet sich von dem der vorausgegangenen Figuren dadurch. daß der Drehkolben 1 in die Innenwand 5 des Gehäuses 4 eingeschliffen ist. Anders ausgedrückt bedeutet dies, daß sich der Drehkolben 1 nicht um die Achse Z2 bewegt, sondern um die Achse Z4. Das Einschleifmaß M ist durch eine gestrichelte Linie 11 verdeutlicht, deren Krümmung mit der Krümmung der Innenwand 5 des Gehäuses 4 identisch ist. Es versteht sich, daß das Einschleifmaß M überdimensioniert eingezeichnet ist und sich in Wirklichkeit in engen Grenzen bewegt.The exemplary embodiment according to FIG. 3 differs from that of the previous figures. that the rotary piston 1 in the
Um Kippmomente auszuschließen, werden vom Grund der Führungsschlitze 14 der Walzen 6 ausgehende Stifte vorgesehen, auf denen sich der Flügel 7 radial zur Achse Z1 verschieben läßt. Diese nicht eingezeichneten Stifte müssen im gleichen Abstand von einer Ebene vorgesehen werden, welche die Tiefe des Gehäuses 4 halbiert.In order to prevent tilting moments, pins extending from the base of the guide slots 14 of the
Der ganz in den Schlitz 14 der Walze 6 eintauchende Flügel 7, also der mittlere der drei sichtbaren Flügel 7, steht über einen Gewindeansatz 15 mit der Stange 8 in Verbindung, die mit einem Schaft 16 in einer Bohrung 17 der Walze 6 geführt ist. Diese Stange 8 weist außerdem ein spannschloßartiges Zwischenstück 18 auf, so daß der radiale Abstand des jeweiligen Flügels 7 zur Achse Z1 einstellbar ist.The wing 7, which is completely immersed in the slot 14 of the
Es versteht sich, daß die Stangen 8 mit ihren inneren Enden irgendwie auf dem Bolzen 10 Platz finden müssen. Ein axiales Hintereinanderreihen, wie in Figur 2 angedeutet, ist nur bei wenigen Flügeln 7 denkbar, da durch den Achsversatz Kippkräfte an den Flügeln nicht auszuschließen sind. Um diesen Schwierigkeiten Herr zu werden, könnte man abgekröpfte Stangen 8 verwenden. Ein weiterer gangbarer Weg ist darin zu sehen, daß man die Stangen 8 mit einem einzigen Sternlager auf dem Bolzen 10 verbindet. Als selbstverständlich ist es auch anzusehen, daß Stangenkonstruktionen gewählt werden müssen, die ohne große Schwierigkeiten eingebaut werden können.It is understood that the
Claims (2)
- Rotary piston engine with a rotary piston (1), which is eccentrically borne in a housing (4) and displays rollers (6), which are rotatably borne in it, are distributed over the circumference, extend by their axes parallelly to the rotary piston shaft (2) and in which (6) blades (7) are guided, which are held radially aligned with the axis (Z1) of the housing (4), co-operate with the inside housing wall (5) and are held by rods (8) in their radial spacing from the housing axis (Z1), wherein the circularly round rotary piston (1) is constructed as hollow cylinder and by way of appropriate bearing shields and bearings (3) borne (compare 2) in the housing (4) in such a manner that over its entire depth it slidingly contacts the inside housing wall (5) at one place, wherein
- a) the rollers (6) guiding the blades (7) display the same cross-section over their entire length, apart from radial apertures (17) in the rollers (6) for the rods (8) forming the radial mouting of the blades (7), and in uniform cross-section fill out the axial depth of the housing (4),b) the rollers (6) receive the blades (7), which are likewise of the same cross-section over their entire length, in slots (14) only partially passing through the rollers (6),c) the depth of the slots (14), which receive the blades (7), of the rollers (6) is at least as great as the radial height dimension of the blades (7) adapted at their outer ends to the radius of curvature of the inside housing wall (5), andd) each roller (6) receiving the blades (7) stands in connection with at least one of the radially inwardly directed rods (8), wherein each rod passes with ample play through a radial passage (9) of the hollow cylindrical round rotary piston (1) and engages at a central pin (10) which is borne locally fixed,
characterised thereby, thatthe passage (17) in the roller (6) is constructed as bore,each rod (8) is alterable in length andthe blades (7) are additionally guided radially in the slots (14) of the rollers (6) with the aid of fitting pins, which are provided in mirror image to the central plane bisecting the depth of the blades (7) and start out from the base of the guide slots (14) of the rollers (6) and on which the blades (7) let themselves be displaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT83107898T ATE31200T1 (en) | 1982-08-16 | 1983-08-10 | ROTARY MACHINE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3230413 | 1982-08-16 | ||
| DE3230413 | 1982-08-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0102555A1 EP0102555A1 (en) | 1984-03-14 |
| EP0102555B1 true EP0102555B1 (en) | 1987-12-02 |
Family
ID=6170971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83107898A Expired EP0102555B1 (en) | 1982-08-16 | 1983-08-10 | Rotary piston machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0102555B1 (en) |
| AT (1) | ATE31200T1 (en) |
| DE (1) | DE3374832D1 (en) |
| GB (1) | GB2126282B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1209540B (en) * | 1984-05-09 | 1989-08-30 | Francesco Di Paola | PUMP-MOTOR, WITH ECCENTRICITY VARIABLE ROTATING FLUID MACHINE, WITH HIGH PRESSURE AND HIGH PERFORMANCE OSCILLATING PADS. |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1095340A (en) * | ||||
| GB190926718A (en) * | 1908-11-19 | 1910-05-19 | Edmond Castellazzo | Improvements in Rotary Engines. |
| FR493844A (en) * | 1917-11-21 | 1919-08-22 | Nicolas Jean Fortunesco | Rotary motor |
| GB300534A (en) * | 1927-08-12 | 1928-11-12 | Ettore Lanzerotti Spina | Improvements in rotary pumps and engines |
| GB311845A (en) * | 1928-02-23 | 1929-05-23 | George Edward Thomas Eyston | Improvements in or connected with rotary pump machines |
| GB441339A (en) * | 1934-07-17 | 1936-01-17 | John Endersen | Improvements in or relating to rotary pumps or rotary engines |
| GB463616A (en) * | 1936-01-03 | 1937-04-02 | Raoul Mabille | Improvements in or relating to rotary engines |
| US2117573A (en) * | 1936-01-08 | 1938-05-17 | Webb Glade Pump Ass | Rotary pump |
| GB475851A (en) * | 1936-03-18 | 1937-11-26 | Raoul Mabille | Improvements in or relating to rotary engines |
| US2124918A (en) * | 1937-06-25 | 1938-07-26 | Hanson Hans Magnus | Rotary vane pump |
| GB877711A (en) * | 1959-09-24 | 1961-09-20 | Alistair Kenyon Bodycomb | Improvements in vane type engines, pumps, fluid compressors, flow meters and the like |
| GB974090A (en) * | 1960-12-03 | 1964-11-04 | Ustav Pro Vyzkum Motorovych Vo | Rotary piston internal combustion engine |
| US3771902A (en) * | 1971-09-22 | 1973-11-13 | R Bandy | Rotary compressor |
| DE2757817A1 (en) * | 1977-12-23 | 1979-06-28 | Traugott Horsch | Rotary IC engine with cylindrical outer case - has eccentric piston wheel defining variable volume work spaces |
| ES8103289A1 (en) * | 1980-05-13 | 1981-02-16 | Otero Gonzalez Teofilo | Rotary positive-displacement fluid-machines |
| GB2089893B (en) * | 1980-12-15 | 1985-04-24 | Kurherr Motoren Ag | Bi-chamber rotary elastic-fluid engine |
-
1983
- 1983-02-10 GB GB08303645A patent/GB2126282B/en not_active Expired
- 1983-08-10 EP EP83107898A patent/EP0102555B1/en not_active Expired
- 1983-08-10 DE DE8383107898T patent/DE3374832D1/en not_active Expired
- 1983-08-10 AT AT83107898T patent/ATE31200T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2126282A (en) | 1984-03-21 |
| EP0102555A1 (en) | 1984-03-14 |
| ATE31200T1 (en) | 1987-12-15 |
| GB8303645D0 (en) | 1983-03-16 |
| GB2126282B (en) | 1985-11-13 |
| DE3374832D1 (en) | 1988-01-14 |
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