EP2005001B1 - Vane pump - Google Patents

Vane pump Download PDF

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Publication number
EP2005001B1
EP2005001B1 EP07722160A EP07722160A EP2005001B1 EP 2005001 B1 EP2005001 B1 EP 2005001B1 EP 07722160 A EP07722160 A EP 07722160A EP 07722160 A EP07722160 A EP 07722160A EP 2005001 B1 EP2005001 B1 EP 2005001B1
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EP
European Patent Office
Prior art keywords
orbiter
pump
vane pump
fact
openings
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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.)
Not-in-force
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EP07722160A
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German (de)
French (fr)
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EP2005001A1 (en
Inventor
Eugen Schmidt
Franz Pawellek
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Geraete und Pumpenbau GmbH
Geraete und Pumpenbau GmbH Dr Eugen Schmidt
Original Assignee
Geraete und Pumpenbau GmbH
Geraete und Pumpenbau GmbH Dr Eugen Schmidt
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Publication of EP2005001A1 publication Critical patent/EP2005001A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/32—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members
    • F04C2/332—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member
    • F04C2/336—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member and hinged to the inner member

Definitions

  • the invention relates to a cell pump according to the preamble of claim 1.
  • the filling of the displacer takes place in the region of the bottom dead center of the eccentric by lateral slots.
  • the lateral filling slots cut off a part of the displacement phase it is also called a phase control.
  • the object of the invention is therefore to develop a novel cell pump, which eliminates the aforementioned disadvantages of the prior art, in particular a high specific delivery volume of the oil pump allows, thereby providing the largest possible Be Glallqueritese and also at the same time as little displacement stroke "gives away", beyond the Power losses significantly lowers, in particular minimizes friction losses, also manufacturing technology is easy to manufacture and assemble, thereby significantly reducing manufacturing costs, at the same time “particle insensitive” and thereby minimizes wear of the assemblies, so that even at very high speeds high reliability and a
  • the novel cell pump to be developed should also be characterized by a low-noise operation even at very high rotational speeds chen.
  • FIG. 1 the cell pump according to the invention in the side view, without cover (in section AA according to FIG. 2 ).
  • a stator 2 is rotatably disposed in a pump housing.
  • a drive shaft 3 is rotatably mounted in the pump housing rotatably on an eccentric 4 is arranged.
  • an orbiter 9 is rotatably mounted on the outer jacket 5 of this eccentric 4.
  • the heads 7 are arranged by pendulums which cooperate with associated, uniformly over the outer circumference of the orbiter 9 arranged guides, the pendulum divide the space between the stator 2 and the orbiter 9 in pump chambers 8.
  • the orbiter 9 has a guide groove 10 in which the shaft 11 of a guide pendulum 12 is gelagrert exclusively linearly displaceable.
  • the shafts 11 of the other pendulum, the sealing pendulum 13, are also linearly displaceable, but stored in pivotally mounted in Orbiter 9 sliding grooves 14.
  • these Gleitnuten 14 are each formed by two rotatably mounted in Orbiter 9 guide half-shells 32 which seal the pump chambers optimally over long sealing gaps.
  • Characteristic in this context is that the sliding grooves 14, but also the guide groove 10, in the working direction of the shafts 11 adjacent in the orbiter 9, working openings 15 are arranged which allow the shafts 11 immersion in these working openings 15 during the work cycle.
  • the guide half shells 32 are hydrostatically relieved.
  • throughflow openings 16 are arranged in the orbiter 9 between the bearings of the pendulum.
  • each of the pump chambers 8 has at least one circular suction opening 17 which is arranged in the, the working space of the orbiter 9 adjacent side wall of the pump housing 1.
  • these circularly concentric intake openings 17 according to the invention interact at bottom dead center with the circumference of the orbiter 9 and thereby generate a maximum possible inflow cross section.
  • each of the pump chambers 8 at the same time has at least one valve-controlled outflow opening 18 which is likewise arranged in the pump housing 1 in the side wall adjacent to the working area of the orbiter 9.
  • FIG. 2 now shows the cell pump according to the invention with a cover 33 in section at BB as shown FIG. 1 ,
  • outflow openings 18 are connected to each other with an annular pressure collecting channel 20.
  • the intake duct 19 and the pressure collecting channel 20 are arranged in a manufacturing process in an annular groove of the pump housing 1 and separated from each other by means of an angular ring 34 manufacturing technology easy to manufacture and assembled
  • the drive shaft 3 is, as in the FIG. 2 shown, also manufacturing technology easily stored in plain bearings 21, which adjacent an annular gap 22 is arranged.
  • a further sliding bearing 21 is arranged for the drive shaft 3. End, a shaft seal 35 is disposed to prevent the intake of air in the lid 33.
  • This Matterströmringnut 36 allows, as already explained, in conjunction with existing in the moving orbiter 9 through-flow openings 16 a double-sided filling of the pump chambers 8, with the already mentioned advantages of the inventive arrangement presented here.
  • reed valves 37 are arranged to work particulate insensitive while cost-effective and at the same time very reliable to ensure the respective desired working pressure.
  • FIG. 3 is now the cell pump according to the invention FIG. 2 shown on average at CC. Due to the solution according to the invention provided large Be Glallqueritese these can be used for suction side displacement control. As can be seen from this illustration, the delivery volume flow of the cell pump according to the invention shown here is controlled on the inlet side by means of a spring-loaded valve piston 23 arranged in the pump housing 1.
  • This spring-loaded valve piston 23 varies with its piston end 24 a control slot 25 which controls the inflow from an inlet bore 26.
  • an annular space 28 is arranged on the piston base 27 of the valve piston 23, into which via a control panel 29, a control bore 30 opens, for example, is in communication with the oil volume of the gallery.
  • the inflow via the inlet bore 26 from the oil pan can be controlled directly.
  • control bore 30 communicates via an orifice bore 31 with the annular gap 22 and thus ensures optimum lubrication of the sliding bearing 21 with filtered oil.
  • This suction control according to the invention now allows the storage of the orbiter 9 on a small eccentric diameter with sufficient clearance. This in turn leads to a further minimization of friction.
  • the novel cell pump which significantly reduces the power losses allows a high specific delivery volume of the oil pump, while providing the largest possible filling cross-sections and at the same time “lost" as little displacement stroke, while significantly reducing the power losses, in particular the friction losses minimized, also manufacturing technology is easy to manufacture and assemble, thereby significantly reducing manufacturing costs, beyond "particle insensitive” and minimizes wear of the assemblies, so that even at very high speeds high reliability and high life at high specific flow with high Efficiency can be ensured about it
  • the novel cell pump to be developed is characterized by a quiet running even at very high speeds.

Abstract

The invention relates to a vane pump which operates by means of an eccentric revolving movement, wherein the inner ring of said vane pump is an orbiter (9) which has a guide groove (10) in which the shank (11) of one of the guide pendulums (12) of said vane pump is arranged so as to be moveable exclusively linearly, wherein a working opening (15) is arranged in the orbiter (9) adjacent to said guide groove (10) in the working direction of the shank (11), and each of the pump chambers (8) has both at least one suction opening (17) arranged in the side wall(s) which are adjacent to the working space of the orbiter (9) and at least one valve-controlled outflow opening (18) which is arranged in the side wall(s) which are adjacent to the working space of the orbiter (9), and throughflow openings (16) are arranged in the orbiter (8) between the bearings of the pendulums, and an overflow annular groove (36) is arranged opposite the suction openings (17) on the other side wall in the working space of the orbiter (9).

Description

Die Erfindung betrifft eine Zellenpumpe nach dem Oberbegriff des Anspruchs 1.The invention relates to a cell pump according to the preamble of claim 1.

Im Stand der Technik sind seit Jahren die unterschiedlichsten Ausführungen von Zellenpumpen bekannt. So beschreibt beispielsweise die DE 103 34 672 B3 eine Pendelschiebermaschine, bei der im Innenrotor speziell geformte Pendeln verschieb- und schwenkbar angeordnet sind, deren Pendelköpfe gleichzeitig schwenkbar im Gehäusering gelagert sind. Beidseitig des Innenrotors sind einerseits eine Saugniere und andererseits zu dieser um 180° versetzt eine Druckniere angeordnet. Bei dieser Bauform führt der Innenrotor im Gehäusering eine exzentrische Umlaufbewegung aus und pumpt dabei den Fördervolumenstrom aus der Saugniere in die Druckniere.In the prior art, the most varied designs of cell pumps have been known for years. For example, describes the DE 103 34 672 B3 a pendulum pusher machine, in the inner rotor specially shaped pendulums are arranged displaceable and pivotable, the pendulum heads are mounted at the same time pivotally mounted in the housing ring. On both sides of the inner rotor on the one hand a suction kidney and on the other hand to this offset by 180 ° a pressure kidney arranged. In this design, the inner rotor performs an eccentric orbital motion in the housing ring, pumping the delivery volume flow from the suction kidney into the pressure kidney.

Der Umstand, dass die Steuerung der Verdrängerräume bei dieser und auch vielen anderen im Stand der Technik bekannten Lösungen über Schlitze am Umfang des Exzenters erfolgt, erfordert einerseits einen großen Exzenterdurchmesser, um ausreichend Strömungsquerschnittsfläche für das Fördermedium darzustellen und andererseits, aufgrund der Dichtheitsanforderungen zwischen Saug- und Druckniere ein sehr enges Passungsspiel zwischen dem Exzenter und dem Innenrotor.The fact that the control of the displacement chambers in this and many other known in the prior art solutions via slots on the circumference of the eccentric, requires on the one hand a large eccentric diameter to represent sufficient flow cross-sectional area for the fluid and on the other hand, due to Tightness requirements between suction and pressure kidney a very tight fit clearance between the eccentric and the inner rotor.

Beide Merkmale führen in der Folge zu hohen Reibverlusten im Gleitlagerspalt zwischen dem Exzenter und dem Innenrotor.Both features result in high friction losses in the sliding bearing gap between the eccentric and the inner rotor as a result.

Darüber hinaus besteht im Falle einer Schmierölpumpe die Gefahr, dass im Öl schwebende Schmutzpartikel in den Gleitlagerspalt gelangen und Verschleiß verursachen.In addition, in the case of a lubricating oil pump there is a risk that dirt particles floating in the oil will enter the sliding bearing gap and cause wear.

Bei zunehmendem Verschleiß verändert sich in der Folge das Passungsmaß zwischen dem Exzenter und dem Innenrotor, die Passung kann die Abdichtfunktion nicht mehr ausführen und der volumetrische Wirkungsgrad der Pumpe fällt ab.As wear increases, the fit between the eccentric and the inner rotor changes as a result, the fit can no longer perform the sealing function and the volumetric efficiency of the pump drops.

In der DE 101 55 875 A1 wurde in Fig. 10 eine Lösung vorgestellt in welcher die saugseitige Befüllung vom Umfang des Exzenters entfernt wurde. Stattdessen erfolgt die saugseitige Verdrängersteuerung über Steuerschlitze mit kleinem Querschnitt in einer der seitlichen Begrenzungsflächen.In the DE 101 55 875 A1 In Fig. 10, a solution was presented in which the suction-side filling was removed from the circumference of the eccentric. Instead, the suction-side displacement control via control slots with a small cross-section takes place in one of the lateral boundary surfaces.

Bei dieser in der DE 101 55 875 A1 vorgestellten Zellenpumpe handelt es sich eine Oszillatorpumpe mit einem auf einer Exzenterwelle gelagerter Innenrotor an dessen Außenumfang Pleuel mittels deren Pleuelköpfen schwenkbar gelagert sind, und deren Pleuelschäfte in den Gleitnuten von Pleuelführungsbolzen verschiebbar gelagert sind, und die selbst wiederum schwenkbar in den Bolzenaufnahmen eines Gehäuseringes gelagert sind, so dass der Innenrotor im Gehäusering eine exzentrische Umlaufbewegung ausführt und dabei den Fördervolumenstrom über im Außenring angeordnete ventilbelastete Ausströmöffnungen hindurchpumpt.In this in the DE 101 55 875 A1 featured cell pump is an oscillator pump with a mounted on an eccentric shaft inner rotor on the outer circumference connecting rods are pivotally mounted by means of their Pleuelköpfen, and their Pleuelschäfte are slidably mounted in the Gleitnuten of Pleuelführungsbolzen, and in turn are pivotally mounted in the bolt receptacles of a housing ring, so that the inner rotor in the housing ring performs an eccentric orbital motion while pumping the delivery volume flow through valve-loaded outflow openings arranged in the outer ring.

In der Dissertation von A. Faßbender " Theoretische und experimentelle Untersuchungen saugseitiger Widerstandssteuerungen bei Verdrängerpumpen" (RWTH Aachen, 1995) wird eine saugseitige Verdrängersteuerung detailliert beschrieben.In the dissertation by A. Faßbender "Theoretical and experimental investigations of suction-side resistance control in displacement pumps" (RWTH Aachen, 1995), a suction-side displacement control is described in detail.

Die Befüllung der Verdrängerräume erfolgt dabei im Bereich des unteren Totpunktes des Exzenters durch seitliche Schlitze.The filling of the displacer takes place in the region of the bottom dead center of the eccentric by lateral slots.

Nachteilig an dieser Art der saugseitigen Verdrängersteuerung ist der damit verbundene Verlust an Verdrängungskapazität der Pumpe.A disadvantage of this type of suction-side displacement control is the associated loss of displacement capacity of the pump.

Solange die Verdrängerräume in Verbindung mit den seitlichen Befüllschlitzen stehen kann kein Druck in der Verdrängerkammer entstehen.As long as the displacement chambers are in connection with the lateral filling slots, no pressure can arise in the displacement chamber.

Die seitlichen Befüllschlitze schneiden einen Teil der Verdrängungsphase ab, man spricht dabei auch von einer Phasenanschnittssteuerung.The lateral filling slots cut off a part of the displacement phase, it is also called a phase control.

Mit der in DE 101 55 875 A1 gezeigten Lösung ist es aufgrund der funktionsbedingt kleinen Schlitzquerschnitte nicht möglich, die zur Förderung eines ausreichenden Schmierölvolumenstromes erforderlichen Befüllquerschnitte bereitzustellen.With the in DE 101 55 875 A1 As a result of the function-related small slot cross-sections, it is not possible to provide the filling cross-sections required to promote adequate lubricating oil volume flow.

Ein weiterer Nachteil vorgenannten Bauformen besteht darin, dass in Verbindung mit der exzentrischen Umlaufbewegung des Innenrotors im Gehäusering, insbesondere bei hohen Drehzahlen und bei Einsatz dieser Pumpe beispielsweise als eine von der Ausgleichswelle eines Kraftfahrzeugmotors angetriebenen Ölpumpe sehr hohe Wirkungsgradverluste auftreten, wobei diese Bauformen zudem unter den vg. Randbedingungen stets hohen Geräuschentwicklungen verursachen.Another disadvantage of the aforementioned designs is that in connection with the eccentric revolution of the inner rotor in the housing ring, especially at high speeds and when using this pump, for example, as a driven by the balance shaft of an automotive engine oil pump very high efficiency losses occur, these designs also under the vg. Boundary conditions always cause high noise levels.

Im Stand der Technik ist weiterhin aus der DE 41 17 936 C2 eine Rotationskolbenmaschine bekannt bei der zwischen zwei ineinander exzentrisch und achsparallel angeordneten Rotoren Schaufelplatten angeordnet sind, die alle mittels Dreh-, Schubgelenke einerseits mit dem Außenrotor und andererseits mit dem Innenrotor verbunden sind.In the prior art is further from the DE 41 17 936 C2 a rotary piston machine known in which between two mutually eccentric and axially parallel rotors arranged blade plates are arranged, all of which are connected by means of rotary, sliding joints on the one hand to the outer rotor and on the other hand to the inner rotor.

Bei der in diesem Schutzrecht vorgestellten Verdrängermaschine dreht sich, wie erläutert, wiederum mit dem Innenrotor (analog der Wirkungsweise der Pendelschiebermaschine) synchron ein Außenrotor.In the case of the displacement machine presented in this patent, as explained, an external rotor rotates synchronously with the inner rotor (analogously to the mode of operation of the pendulum slide machine).

Daher wird auch bei dieser Lösung insbesondere in Folge der Gleitlagerung des Außenrotors bei hohen Gleitgeschwindigkeiten ein hohes Reibmoment erzeugt welches den Wirkungsgrad stark negativ beeinflusst wobei auch diese Lösung zudem eine hohe Geräuschbelastung verursacht.Therefore, a high friction torque is also generated in this solution, in particular as a result of the sliding bearing of the outer rotor at high sliding speeds which strongly adversely affects the efficiency and this solution also causes a high noise level.

Darüber hinaus ist aus der US 1 828 245 A eine Zellenpumpe mit einem ausschließlich linear verschiebbaren Führungspendel bekannt, bei welcher die Befüllung, bzw. Entleerung der Förderkammern der Zellenpumpe ausschließlich über spezielle in der Exzenterwelle angeordnete Nuten und zur vg. Wellenachse parallele Bohrungen erfolgt. Neben den fertigungstechnischen wie auch strömungstechnischen Nachteilen dieser Lösung zur Befüllung bzw. Entleerung der Förderkammern tritt aber auch bei dieser Bauform, wiederum insbesondere in Folge der Gleitlagerung des Außenrotors, bei hohen Gleitgeschwindigkeiten ein hohes Reibmoment auf welches ebenfalls all die bereits erläuterten Nachteile zur Folge hat.In addition, from the US Pat. No. 1,828,245 A a cell pump with an exclusively linearly displaceable guide pendulum known in which the Filling or emptying of the delivery chambers of the cell pump exclusively via special arranged in the eccentric shaft grooves and vg. Shaft axis parallel holes done. In addition to the technical manufacturing as well as aerodynamic disadvantages of this solution for filling or emptying the delivery chambers but also occurs in this design, again in particular as a result of the sliding bearing of the outer rotor, at high sliding speeds a high friction torque which also has all the disadvantages already described result.

Die Aufgabe der Erfindung besteht nun darin eine neuartige Zellenpumpe zu entwickeln, welche die vorgenannten Nachteile des Standes der Technik beseitigt, insbesondere ein hohes spezifisches Fördervolumen der Ölpumpe ermöglicht, dabei möglichst große Befüllquerschnitte bereitstellt und zudem gleichzeitig möglichst wenig Verdrängungshub "verschenkt", darüber hinaus die Verlustleistungen deutlich senkt, insbesondere die Reibungsverluste minimiert, zudem fertigungstechnisch einfach herstell- und montierbar ist, dadurch die Fertigungskosten deutlich reduziert, gleichzeitig "partikelunempfindlich" ist und auch dadurch den Verschleiß der Baugruppen minimiert, so dass selbst bei sehr hohen Drehzahlen eine hohe Zuverlässigkeit und eine hohe Lebensdauer bei hohem spezifischem Fördervolumen mit hohem Wirkungsgrad gewährleistet werden kann, darüber hinaus soll sich die zu entwickelnde neuartige Zellenpumpe zudem selbst bei sehr hohen Drehzahlen durch einen geräuscharmen Lauf auszeichnen.The object of the invention is therefore to develop a novel cell pump, which eliminates the aforementioned disadvantages of the prior art, in particular a high specific delivery volume of the oil pump allows, thereby providing the largest possible Befüllquerschnitte and also at the same time as little displacement stroke "gives away", beyond the Power losses significantly lowers, in particular minimizes friction losses, also manufacturing technology is easy to manufacture and assemble, thereby significantly reducing manufacturing costs, at the same time "particle insensitive" and thereby minimizes wear of the assemblies, so that even at very high speeds high reliability and a In addition, the novel cell pump to be developed should also be characterized by a low-noise operation even at very high rotational speeds chnen.

Erfindungsgemäß wird diese Aufgabe durch eine Zellenpumpe nach den Merkmalen des Hauptanspruches der Erfindung gelöst.According to the invention this object is achieved by a cell pump according to the features of the main claim of the invention.

Vorteilhafte Ausführungen, Einzelheiten und Merkmale der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung des erfindungsgemäßen Ausführungsbeispieles in Verbindung mit den Zeichnungen zur erfindungsgemäßen Lösung.Advantageous embodiments, details and features of the invention will become apparent from the dependent claims and the following description of the Embodiment of the invention in conjunction with the drawings for the solution according to the invention.

Nachfolgend soll nun die Erfindung an Hand eines Ausführungsbeispieles in Verbindung mit drei Figuren näher erläutert werden.Below, the invention will now be explained in more detail with reference to an embodiment in conjunction with three figures.

Es zeigen dabei:

Figur 1 :
die erfindungsgemäße Zellenpumpe in der Seitenansicht, ohne Deckel, (Schnitt A-A gemäß Figur 2);
Figur 2 :
die erfindungsgemäße Zellenpumpe im Schnitt bei B-B, gemäß Figur 1 mit einem Deckel;
Figur 3 :
die erfindungsgemäße Zellenpumpe im Schnitt bei C-C, gemäß Figur 2.
It shows:
FIG. 1:
the cell pump according to the invention in the side view, without cover, (section AA according to FIG. 2 );
FIG. 2:
the cell pump according to the invention in section at BB, according to FIG. 1 with a lid;
FIG. 3:
the cell pump according to the invention in section at CC, according to FIG. 2 ,

In der Figur 1 ist die erfindungsgemäßen Zellenpumpe in der Seitenansicht, ohne Deckel (im Schnitt A-A gemäß Figur 2), dargestellt.In the FIG. 1 the cell pump according to the invention in the side view, without cover (in section AA according to FIG. 2 ).

In einem Pumpengehäuse ist drehfest ein Stator 2 angeordnet. Darüber hinaus ist im Pumpengehäuse drehbar eine Antriebswelle 3 gelagert auf der drehfest ein Exzenter 4 angeordnet ist. Auf dem Außenmantel 5 dieses Exzenters 4 ist ein Orbiter 9 drehbar gelagert.In a pump housing, a stator 2 is rotatably disposed. In addition, a drive shaft 3 is rotatably mounted in the pump housing rotatably on an eccentric 4 is arranged. On the outer jacket 5 of this eccentric 4, an orbiter 9 is rotatably mounted.

Am Innenumfang des Stators 2 sind Pleuelaugen 6 gleichmäßig verteilt angeordnet. In diesen sind die Köpfe 7 von Pendeln angeordnet welche mit zugeordneten, gleichmäßig über den Außenumfang des Orbiters 9 angeordneten Führungen zusammenwirken, wobei die Pendel den Raum zwischen dem Stator 2 und dem Orbiter 9 in Pumpenkammern 8 unterteilen.On the inner circumference of the stator 2 Pleuelaugen 6 are arranged evenly distributed. In these, the heads 7 are arranged by pendulums which cooperate with associated, uniformly over the outer circumference of the orbiter 9 arranged guides, the pendulum divide the space between the stator 2 and the orbiter 9 in pump chambers 8.

Erfindungswesentlich ist dabei, dass der Orbiter 9 über eine Führungsnut 10 verfügt in welcher der Schaft 11 eines Führungspendels 12 ausschließlich linear verschiebbar gelagrert ist.Essential to the invention is that the orbiter 9 has a guide groove 10 in which the shaft 11 of a guide pendulum 12 is gelagrert exclusively linearly displaceable.

Die Schäfte 11 der anderen Pendel, der Dichtpendel 13, sind ebenfalls linear verschiebbar, jedoch in schwenkbar im Orbiter 9 gelagerten Gleitnuten 14 gelagert.The shafts 11 of the other pendulum, the sealing pendulum 13, are also linearly displaceable, but stored in pivotally mounted in Orbiter 9 sliding grooves 14.

Dabei werden diese Gleitnuten 14 jeweils von zwei drehbar im Orbiter 9 gelagerten Führungshalbschalen 32 gebildet welche die Pumpenkammern über lange Dichtspalte optimal abdichten.In this case, these Gleitnuten 14 are each formed by two rotatably mounted in Orbiter 9 guide half-shells 32 which seal the pump chambers optimally over long sealing gaps.

Kennzeichnend ist in diesem Zusammenhang auch, dass den Gleitnuten 14, aber auch der Führungsnut 10, in Arbeitsrichtung der Schäfte 11 im Orbiter 9 benachbart, Arbeitsöffnungen 15 angeordnet sind welche den Schäfte 11 ein Eintauchen in diese Arbeitsöffnungen 15 während des Arbeitsspieles ermöglichen.Characteristic in this context is that the sliding grooves 14, but also the guide groove 10, in the working direction of the shafts 11 adjacent in the orbiter 9, working openings 15 are arranged which allow the shafts 11 immersion in these working openings 15 during the work cycle.

Infolge der vorliegenden erfindungsgemäßen Anordnung sind die Führungshalbschalen 32 hydrostatisch entlastet.As a result of the present inventive arrangement, the guide half shells 32 are hydrostatically relieved.

Erfindungswesentlich ist weiterhin, dass im Orbiter 9 zwischen den Lagerungen der Pendel Durchströmöffnungen 16 angeordnet sind.It is also essential to the invention that throughflow openings 16 are arranged in the orbiter 9 between the bearings of the pendulum.

Erfindungsgemäß verfügt jede der Pumpenkammern 8 über mindestens eine kreiskonzentrische Ansaugöffnung 17 welche in der, dem Arbeitsraum des Orbiters 9 benachbarten Seitenwand des Pumpengehäuses 1 angeordnet ist. Diese erfindungsgemäßen kreiskonzentrischen Ansaugöffnung 17 interagieren infolge der erfindungsgemäßen Orbiterkinematik im unteren Totpunkt mit dem Umfang des Orbiters 9 und erzeugen dabei einen maximal möglichen Einströmquerschnitt.According to the invention, each of the pump chambers 8 has at least one circular suction opening 17 which is arranged in the, the working space of the orbiter 9 adjacent side wall of the pump housing 1. As a result of the orbital kinematics according to the invention, these circularly concentric intake openings 17 according to the invention interact at bottom dead center with the circumference of the orbiter 9 and thereby generate a maximum possible inflow cross section.

Die im Orbiter 9 zwischen den Lagerungen der Pendel angeordneten Durchströmöffnungen 16 ermöglichen gleichzeitig in Verbindung mit der erfindungsgemäßen, in der Figur 3 dargestellten, den kreiskonzentrischen Ansaugöffnungen 17 gegenüberliegend angeordneten, Überströmringnut 36 eine beidseitige Befüllung der Pumpenkammern 8.The arranged in the orbiter 9 between the bearings of the pendulum flow-through 16 allow simultaneously in conjunction with the invention, in the FIG. 3 represented, the circular concentric suction openings 17 arranged opposite, Überströmringnut 36 a two-sided filling of the pump chambers. 8

Durch diese erfindungsgemäße beidseitige Befüllung (aufgrund der erfindungsgemäßen Anordnung der Durchströmöffnungen 16 und der Überströmringnut 36) wird der bereits erläuterte, maximal mögliche Einströmquerschnitt verdoppelt.As a result of this inventive filling on both sides (due to the arrangement according to the invention of the flow-through openings 16 and the overflow ring groove 36), the maximum possible inflow cross-section already described is doubled.

Mittels der erfindungsgemäßen Anordnung ist es somit gelungen, per Phasenanschnitt mit kreiskonzentrischen Saugschlitzen bei optimierter Orbiterkinematik eine "doppelseitige" Befüllung zu realisieren, um dadurch große Befüllquerschnitte bereitzustellen, die auch für eine saugseitigen Verdrängersteuerung genutzt werden können, sowie um gleichzeitig möglichst wenig Verdrängungshub zu "verschenken".By means of the arrangement according to the invention, it has thus been possible to realize a "double-sided" filling by means of phase cutting with circular concentric suction slits with optimized orbital kinematics, thereby providing large filling cross sections which can also be used for a suction-side displacement control, and at the same time giving as little displacement as possible ".

Ein weiteres Merkmal der Erfindung besteht darin, dass jede der Pumpenkammern 8 gleichzeitig über mindestens eine ventilgesteuerte Ausströmöffnung 18 verfügt welche ebenfalls in der dem Arbeitsraum des Orbiters 9 benachbarten Seitenwand im Pumpengehäuse 1 angeordnet ist.Another feature of the invention is that each of the pump chambers 8 at the same time has at least one valve-controlled outflow opening 18 which is likewise arranged in the pump housing 1 in the side wall adjacent to the working area of the orbiter 9.

Die Figur 2 zeigt nun die erfindungsgemäße Zellenpumpe mit einem Deckel 33 im Schnitt bei B-B gemäß der Darstellung Figur 1.The FIG. 2 now shows the cell pump according to the invention with a cover 33 in section at BB as shown FIG. 1 ,

Infolge der erfindungsgemäßen Anordnung gewährleisten die kreiskonzentrischen Ansaugöffnungen 17 im unteren Totpunkt des Orbiters 9 stets einen maximal möglichen Einströmquerschnitt.As a result of the arrangement according to the invention, the circular concentric suction openings 17 always ensure a maximum possible inflow cross section at bottom dead center of the orbiter 9.

Dabei sind diese Ansaugöffnungen 17, wie aus der Figur 2 ersichtlich, untereinander mit einem ringförmigen Ansaugkanal 19 verbunden.In this case, these suction openings 17, as shown in FIG. 2 seen, connected to each other with an annular intake passage 19.

Ebenso sind auch die Ausströmöffnungen 18 untereinander mit einem ringförmigen Drucksammelkanal 20 verbunden.Likewise, the outflow openings 18 are connected to each other with an annular pressure collecting channel 20.

Der Ansaugkanal 19 und der Drucksammelkanal 20 sind fertigungstechnisch in einer Ringnut des Pumpengehäuses 1 angeordnet und voneinander mittels eines Winkelringes 34 fertigungstechnisch einfach herstell- und montierbar getrenntThe intake duct 19 and the pressure collecting channel 20 are arranged in a manufacturing process in an annular groove of the pump housing 1 and separated from each other by means of an angular ring 34 manufacturing technology easy to manufacture and assembled

Die Antriebswelle 3 ist, wie in der Figur 2 dargestellt, ebenfalls fertigungstechnisch einfach in Gleitlagern 21 gelagert, denen benachbart ein Ringspalt 22 angeordnet ist.The drive shaft 3 is, as in the FIG. 2 shown, also manufacturing technology easily stored in plain bearings 21, which adjacent an annular gap 22 is arranged.

Im Deckel 33 ist ein weiteres Gleitlager 21 für die Antriebswelle 3 angeordnet. Endseitig ist zur Vermeidung des Einziehens von Luft im Deckel 33 ein Wellendichtring 35 angeordnet.In the cover 33, a further sliding bearing 21 is arranged for the drive shaft 3. End, a shaft seal 35 is disposed to prevent the intake of air in the lid 33.

Darüber hinaus ist im Deckel 33 fertigungs- und montagetechnisch einfach die Überströmringnut 36 angeordnet.In addition, the Überströmringnut 36 is arranged in the cover 33 manufacturing and assembly technology simply.

Diese Überströmringnut 36 ermöglicht, wie bereits erläutert, in Verbindung mit den im bewegten Orbiter 9 vorhandenen Durchströmöffnungen 16 eine doppelseitige Befüllung der Pumpenkammern 8, mit den bereits erwähnten Vorzügen der hier vorgestellten erfindungsgemäßen Anordnung.This Überströmringnut 36 allows, as already explained, in conjunction with existing in the moving orbiter 9 through-flow openings 16 a double-sided filling of the pump chambers 8, with the already mentioned advantages of the inventive arrangement presented here.

Dabei wird infolge dieser beidseitigen (doppelseitige) Befüllung der Pumpenkammern 8 zudem ein reibungsverlust- und geräuscharmen Einströmen des Fördervolumenstromes aus dem Ansaugkanal 19 in die Pumpenkammern 8 gewährleistet.In this case, as a result of this double-sided (double-sided) filling of the pump chambers 8, a low-friction and low-noise inflow of the delivery volume flow from the intake duct 19 into the pump chambers 8 is ensured.

Durch das in der Führungsnut 10 des Orbiters 9 translatorisch verschiebbar gelagerte Führungspendel 12 wird der Orbiter 9 am Verdrehen gehindert und führt pendelnd "Hub- und Senkbewegung" aus, wodurch der Fördervolumenstrom nicht nur wie bereits erläutert optimal in die Pumpenkammern 8 einströmen kann, sondern auch aus diesen Pumpenkammern 8 durch die Ausströmöffnungen 18 hindurch verlustarm in den Drucksammelkanal 20 gepumpt werden kann, so dass selbst bei sehr hohen Drehzahlen eine hohe Zuverlässigkeit und eine hohe Lebensdauer bei hohem Wirkungsgrad gewährleistet ist.By in the guide groove 10 of the orbiter 9 translationally displaceable mounted guide pendulum 12 of the orbiter 9 is prevented from rotating and performs oscillating "lifting and lowering", whereby the delivery volume flow not only as already explained optimally can flow into the pump chambers 8, but also from these pump chambers 8 through the discharge ports 18 can be pumped low loss into the pressure collecting channel 20, so that even at very high speeds, high reliability and a long service life is ensured with high efficiency.

Infolge der kleinen seitlichen Führungsflächen zwischen dem Orbiter 9 und dem Pumpengehäuse 1 bzw. zwischen dem Orbiter 9 und dem Deckel 33 werden auch dort die Reibungsverluste minimiert.Due to the small lateral guide surfaces between the orbiter 9 and the pump housing 1 or between the orbiter 9 and the cover 33, the friction losses are minimized there as well.

Zwischen den Ausströmöffnungen 18 und dem Drucksammelkanal 20 sind mit Hubbegrenzungen 38 versehene Zungenventile 37 angeordnet die partikelunempfindlich arbeiten und dabei kostengünstig wie auch gleichzeitig sehr zuverlässig den jeweils gewünschten Arbeitsdruck gewährleisten.Between the outflow openings 18 and the pressure collection channel 20 provided with stroke limits 38 reed valves 37 are arranged to work particulate insensitive while cost-effective and at the same time very reliable to ensure the respective desired working pressure.

In der Figur 3 ist nun die erfindungsgemäße Zellenpumpe gemäß Figur 2 im Schnitt bei C-C dargestellt. Auf Grund der durch die erfindungsgemäße Lösung bereitgestellten große Befüllquerschnitte können diese zur saugseitigen Verdrängersteuerung genutzt werden. Wie aus dieser Darstellung zu entnehmen ist wird der Fördervolumenstrom der hier dargestellten erfindungsgemäßen Zellenpumpe zulaufseitig mittels eines im Pumpengehäuse 1 angeordneten federbelasteten Ventilkolbens 23 gesteuert.In the FIG. 3 is now the cell pump according to the invention FIG. 2 shown on average at CC. Due to the solution according to the invention provided large Befüllquerschnitte these can be used for suction side displacement control. As can be seen from this illustration, the delivery volume flow of the cell pump according to the invention shown here is controlled on the inlet side by means of a spring-loaded valve piston 23 arranged in the pump housing 1.

Dieser federbelastete Ventilkolben 23 variiert mit seiner Kolbenstirn 24 einen Steuerschlitz 25 welcher den Zufluss aus einer Zulaufbohrung 26 steuert. Hierzu ist am Kolbenfuß 27 des Ventilkolbens 23 ein Ringraum 28 angeordnet, in den über eine Steuerblende 29 eine Steuerbohrung 30 mündet die beispielsweise mit dem Ölvolumen der Galerie in Verbindung steht.This spring-loaded valve piston 23 varies with its piston end 24 a control slot 25 which controls the inflow from an inlet bore 26. For this purpose, an annular space 28 is arranged on the piston base 27 of the valve piston 23, into which via a control panel 29, a control bore 30 opens, for example, is in communication with the oil volume of the gallery.

Dadurch kann beispielsweise mit dem Steuerdruck des Ölvolumens der Galerie der Zufluss über die Zulaufbohrung 26 aus der Ölwanne direkt angesteuert werden.As a result, for example, with the control pressure of the oil volume of the gallery, the inflow via the inlet bore 26 from the oil pan can be controlled directly.

Gleichzeitig steht die Steuerbohrung 30 über eine Blendenbohrung 31 mit dem Ringspalt 22 in Verbindung und gewährleistet so eine optimale Schmierung der Gleitlager 21 mit gefiltertem Öl.At the same time, the control bore 30 communicates via an orifice bore 31 with the annular gap 22 and thus ensures optimum lubrication of the sliding bearing 21 with filtered oil.

Diese erfindungsgemäße Saugsteuerung ermöglicht nun die Lagerung des Orbiters 9 auf einem kleinen Exzenterdurchmesser mit ausreichend Lagerspiel. Dies führt wiederum zu einer weiteren Reibungsminimierung.This suction control according to the invention now allows the storage of the orbiter 9 on a small eccentric diameter with sufficient clearance. This in turn leads to a further minimization of friction.

Mit der erfindungsgemäßen Lösung ist es somit gelungen eine neuartige Zellenpumpe zu entwickeln, welche die Verlustleistungen deutlich senkt ein hohes spezifisches Fördervolumen der Ölpumpe ermöglicht, dabei möglichst große Befüllquerschnitte bereitstellt und gleichzeitig möglichst wenig Verdrängungshub "verschenkt", dabei die Verlustleistungen deutlich senkt, insbesondere die Reibungsverluste minimiert, zudem fertigungstechnisch einfach herstell- und montierbar ist, dadurch die Fertigungskosten deutlich reduziert, darüber hinaus "partikelunempfindlich" ist und den Verschleiß der Baugruppen minimiert, so dass selbst bei sehr hohen Drehzahlen eine hohe Zuverlässigkeit und eine hohe Lebensdauer bei hohem spezifischem Fördervolumen mit hohem Wirkungsgrad gewährleistet werden kann, darüber hinaus zeichnet sich die zu entwickelnde neuartige Zellenpumpe zudem selbst bei sehr hohen Drehzahlen sich durch einen geräuscharmen Lauf aus.With the solution according to the invention, it is thus possible to develop a novel cell pump, which significantly reduces the power losses allows a high specific delivery volume of the oil pump, while providing the largest possible filling cross-sections and at the same time "lost" as little displacement stroke, while significantly reducing the power losses, in particular the friction losses minimized, also manufacturing technology is easy to manufacture and assemble, thereby significantly reducing manufacturing costs, beyond "particle insensitive" and minimizes wear of the assemblies, so that even at very high speeds high reliability and high life at high specific flow with high Efficiency can be ensured about it In addition, the novel cell pump to be developed is characterized by a quiet running even at very high speeds.

BezugszeichenzusammenstellungREFERENCE SYMBOL

11
Pumpengehäusepump housing
22
Statorstator
33
Antriebswelledrive shaft
44
Exzentereccentric
55
Außenmantelouter sheath
66
PleulaugePleulauge
77
Kopfhead
88th
Pumpenkammerpump chamber
99
OrbiterOrbiter
1010
Führungsnutguide
1111
Schaftshaft
1212
Führungspendelleadership pendulum
1313
Dichtpendelsealing pendulum
1414
Gleitnutenslide grooves
1515
Arbeitsöffnungenworking openings
1616
Durchströmöffnungenflow openings
1717
Ansaugöffnungensuction
1818
Ausströmöffnungenoutflow
1919
Ansaugkanalintake port
2020
DrucksammelkanalPressure collecting channel
2121
Gleitlagerbearings
2222
Ringspaltannular gap
2323
Ventilkolbenplunger
2424
Kolbenstirnpiston end
2525
Steuerschlitzcontrol slot
2626
Zulaufbohrunginlet bore
2727
Kolbenfußpiston base
2828
Ringraumannulus
2929
Steuerblendecontrol panel
3030
Steuerbohrungcontrol bore
3131
Blendenbohrungorifice bore
3232
FührungshalbschalenGuide shells
3333
Deckelcover
3434
Winkelringangle ring
3535
WellendichtringShaft seal
3636
ÜberströmringnutÜberströmringnut
3737
Zungenventilreed valve
3838
HubbegrenzungStroke

Claims (7)

  1. Vane pump with a pump housing (1) a stator (2) fitted in the pump housing (1) a drive shaft (3) fitted in the pump housing (1) with a torque resistant eccentric tappet (4) connected with the drive shaft (3), a rotatable interior ring on the outside cover (5) of the eccentric tappet (4) with connecting rod big ends (6) distributed evenly around the inside circumference of the stator (2) where the heads (7) of pendulums are fitted and which interact with assigned guideways located evenly over the outside circumference of the inside ring to divide the distance between the stator (2) and the inside ring in the pump compartments (8) so that the shafts (11) of sealing pendulums (13) are guided in sliding bearing grooves (14) which can be swivelled and where these bearing grooves (14) are fitted into adjacent working openings (15) in the orbiter (9) in the working direction of the shafts (11) so that the inside ring is an orbiter (9) with a guiding groove (10) where the shaft (11) of one of the guiding pendulums (12) is fitted so that it can only be slid linearly, so that a working opening (15) is fitted in the orbiter (9) of this guiding groove (10) in the working direction of the shaft (11), characterized by the fact,
    - that each of the pump compartments (8) has at least one an intake opening (17) located in the side wall / side walls adjacent to the working area of the orbiter (9) and also has at least one valve controlled discharge opening (18) located in the side wall / side walls adjacent to the working area of the orbiter (9), and
    - that flow openings (16) are located in the orbiter (9) between the bearings of the pendulums, and
    - that an overflow groove (36) is located on the opposite side from the intake openings (17) at the other side wall in the working area of the orbiter (9).
  2. A vane pump in accordance with claim 1, characterized by the fact that the intake openings (17) and discharge openings (18) are connected to each other with an annular intake duct (19) and an annular pressure collection duct (20).
  3. A vane pump in accordance with claim 1, characterized by the fact that the drive shaft (3) is mounted in sliding bearings (21) where an annular gap (22) is located adjacently.
  4. A vane pump in accordance with claim 1, characterized by the fact that a spring-loaded piston valve (23) is used to control the discharge volume flow on the supply side so that this varies by using a control slot (25) at the top of the piston (24) to control the flow coming from a supply hole (26) where an annular cavity (28) is located at the bottom of the piston (27) of the piston valve(23) where a control hole (30) opens out over a control diaphragm (29) which is connected with the oil quantity of the gallery, in other words, the main oil channel.
  5. A vane pump in accordance with claims 3 and 4, characterized by the fact that the control hole (30) is connected with the annular gap (22) via a diaphragm opening (31).
  6. A vane pump in accordance with claim 1, characterized by the fact that the sliding grooves (14) are each immersed in oil by two guide cups (32) on bearings which can be turned in the orbiter (9).
  7. A vane pump in accordance with claim 1, characterized by the fact that the vane pump has a cover (33) where a shaft sealing ring (35) and the overflow annular groove (36) are located, together with a sliding bearing (21) for the drive shaft (3).
EP07722160A 2006-04-10 2007-04-03 Vane pump Not-in-force EP2005001B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006016790A DE102006016790B3 (en) 2006-04-10 2006-04-10 cell pump
PCT/DE2007/000602 WO2007115544A1 (en) 2006-04-10 2007-04-03 Vane pump

Publications (2)

Publication Number Publication Date
EP2005001A1 EP2005001A1 (en) 2008-12-24
EP2005001B1 true EP2005001B1 (en) 2009-06-10

Family

ID=38325421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722160A Not-in-force EP2005001B1 (en) 2006-04-10 2007-04-03 Vane pump

Country Status (5)

Country Link
EP (1) EP2005001B1 (en)
AT (1) ATE433542T1 (en)
DE (3) DE102006016790B3 (en)
ES (1) ES2327795T3 (en)
WO (1) WO2007115544A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101328890B (en) * 2008-07-22 2010-12-08 温岭市鑫磊空压机有限公司 Translation type rotary compressing device
US9394893B2 (en) 2010-02-26 2016-07-19 Mahle International Gmbh Oscillating slide machine that pumps different fluid mediums at different pressures
DE102010009471A1 (en) * 2010-02-26 2011-09-01 Mahle International Gmbh Controllable hydraulic oscillating slide machine e.g. oil pump, for use in motor vehicle, has slide drivers coupled with piston, where pressure level in chambers is adjusted different than pressure level in other chambers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE542111C (en) * 1929-01-18 1932-01-20 Wolfgang Carl Muller Distributor for fluid change and reversing gear
US1828245A (en) * 1930-12-08 1931-10-20 Davidson William Ward Rotary pump
DE4117936C2 (en) * 1991-05-31 1998-04-02 Andro Caric Rotary piston machine
DE10155875A1 (en) * 2001-11-14 2003-05-22 Zahnradfabrik Friedrichshafen Oscillating pump has sealing device in connection between dividing element and housing or disc which divides up ring chamber into chambers of variable volume
DE10334672B3 (en) * 2003-07-30 2005-01-13 Beez, Günther, Dipl.-Ing. Pendulum slide machine for liquid or gas displacement has cam with suction element on one side and pressure element on other
DE102005017834B4 (en) * 2005-04-18 2012-03-29 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt cell pump

Also Published As

Publication number Publication date
ATE433542T1 (en) 2009-06-15
DE102006016790B3 (en) 2008-03-06
DE502007000854D1 (en) 2009-07-23
ES2327795T3 (en) 2009-11-03
DE112007001403A5 (en) 2009-03-12
WO2007115544A1 (en) 2007-10-18
EP2005001A1 (en) 2008-12-24

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