WO2012175349A2 - Vane pump - Google Patents

Vane pump Download PDF

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Publication number
WO2012175349A2
WO2012175349A2 PCT/EP2012/060888 EP2012060888W WO2012175349A2 WO 2012175349 A2 WO2012175349 A2 WO 2012175349A2 EP 2012060888 W EP2012060888 W EP 2012060888W WO 2012175349 A2 WO2012175349 A2 WO 2012175349A2
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WO
WIPO (PCT)
Prior art keywords
vane pump
chamber
pressure chamber
pump according
volume
Prior art date
Application number
PCT/EP2012/060888
Other languages
German (de)
French (fr)
Other versions
WO2012175349A3 (en
Inventor
Torsten Helle
Martin Thoma
Willi Schneider
Benjamin Pyrdok
Original Assignee
Joma-Polytec Gmbh
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Publication date
Application filed by Joma-Polytec Gmbh filed Critical Joma-Polytec Gmbh
Publication of WO2012175349A2 publication Critical patent/WO2012175349A2/en
Publication of WO2012175349A3 publication Critical patent/WO2012175349A3/en

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Classifications

    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
    • 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
    • F04C2250/00—Geometry
    • F04C2250/30—Geometry of the stator
    • F04C2250/301—Geometry of the stator compression chamber profile defined by a mathematical expression or by parameters
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/40—Conditions across a pump or machine
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/46—Conditions in the working chamber

Definitions

  • the invention relates to a vane pump with a cup-shaped housing, a rotor rotatably mounted in the housing, a plurality of rotatably mounted in the rotor orthogonal to the axis of rotation vanes abut with their distal wing tips on a working space defining inner peripheral surface and thereby divide the working space into a suction chamber and a pressure chamber , and with a suction connection for the suction chamber and a pressure connection for the pressure chamber.
  • Vane pumps of such a construction are known. They usually have a housing in which a rotor is rotatably mounted, wherein the rotor is located in a working space. Such vane pumps are used inter alia in vehicles, where, for example, the engine of the motor vehicle rotates the rotor. These vane pumps are lubricated with oil, which also serves to seal the sealing gap between the wing and working space. From DE 100 29 969 C1 a vane pump is known, in which the rotor is mounted pivotably in the housing, whereby the volume flow can be vertellt. However, very high volume flows or pressures can not be achieved with such a pump.
  • the invention has for its object to provide a vane pump, can be achieved with the high volume flows or pressures.
  • the vane pump according to the invention has the significant advantage that the fluid, in particular air, is compressed over a large distance, whereby higher pressures are achieved. With dry running pumps, the leakage air flow can be optimally compensated.
  • the wrap angle of the pressure chamber is greater than the wrap angle of the suction chamber, so that the air is compressed longer and a higher pressure is reached.
  • the working space is asymmetrically curved by this measure.
  • the suction space extends from the point where the rotor lifts from the inner peripheral surface of the working space to the point where the inner peripheral surface is farthest from the rotor. The same applies to the pressure chamber, which extends from this point to the point at which the rotor again touches the inner peripheral surface.
  • the suction chamber has a wrap angle of 50 ° to 90 °, in particular of 70 °.
  • the pressure space can extend over the remainder of the circumference.
  • the pressure chamber has a wrap angle of 120 ° to 180 °, in particular of 150 °.
  • the volume of the suction chamber is smaller than the volume of the pressure chamber.
  • the volume increase of the suction chamber is faster than the decrease in volume in the pressure chamber. This means that the pressure increase in the suction chamber is faster than in the pressure chamber. In the suction chamber, the inflow of the fluids is supported by the ambient pressure. In contrast, the pressure in the pressure chamber is built up more slowly.
  • the volume increase in the suction chamber is substantially continuous.
  • the fluid thus flows substantially uniformly into the suction chamber.
  • the volume decrease of the pressure chamber takes place in three stages, wherein the volume decrease in the first and third stages is greater than in the second stage.
  • the fluid is accelerated, whereby the ejection of the fluid from the pressure chamber and thus the largely complete emptying is supported.
  • the first stage has a wrapping angle of 80 °
  • the second stage a wrapping angle of 130 ° and / or the third stage a wrapping angle of 40 °, respectively +/- 20 °.
  • the acceleration is thus over a distance of about 10% of the circumference of the rotor.
  • Figure 1 is a plan view of a vane pump, in particular a dry-running vane pump, with removed housing cover;
  • Figure 2 shows a development of the suction chamber and the subsequent pressure chamber.
  • the reference numeral 10 designates a vane cell pump, in which the housing 12 has a suction connection 14, which opens into an interior 16.
  • a generally designated 18 rotor in which seven Wing 20 is mounted orthogonal to the axis of rotation 22 slidably.
  • the rotor 18 is located eccentrically in the inner space 16 and contacts the inner peripheral surface 24 of the inner space 16 between the suction port 14 and a pressure port 26.
  • the suction connection 14 opens into a working space 28 which is subdivided by the wings 20 into a suction space 30 and a pressure space 32.
  • the transition from the suction chamber 30 to the pressure chamber 32 is located where the inner peripheral surface 24 of the first working space 26 has the largest distance 34 to the rotor 18.
  • FIG. 2 shows a developed view of the suction chamber 30 and of the pressure space 32 directly adjoining it.
  • the abscissa indicates the wrap angle, wherein the suction space 30 extends from 0 ° to 70 ° and the pressure space from 70 ° to 320 °.
  • the ordinate indicates the distance of the inner peripheral surface 24 from the rotor 18 in mm.
  • the second stage 38 extends from 150 ° to 280 ° and the distance to the inner peripheral surface 24 is again reduced by half.
  • the third stage 48 from 280 ° to 320 °, the fluid is again strongly compressed and thereby expelled accelerated.
  • the volume decrease in stages 36, 38 and 40 is substantially linear.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

The invention relates to a vane pump comprising a pot-shaped housing, a rotor which is rotatably mounted in the housing, a plurality of vanes mounted in the rotor so as to be orthogonally displaceable in relation to the rotational axis, the distal tips of the vanes lying on an internal circumferential surface, which delimits a first working chamber, and thus dividing the first working chamber into a suction chamber and a pressure chamber. The vane pump further comprises a suction connection for the suction chamber and a pressure connection for the pressure chamber. The length of the suction chamber in a circumferential direction is smaller than the length of the pressure chamber in a circumferential direction.

Description

FlügelzellenpumpeVane pump
Die Erfindung betrifft eine Flügelzellenpumpe mit einem topfförmigen Gehäuse, einem im Gehäuse drehbar gelagerten Rotor, mehreren im Rotor orthogonal zur Drehachse verschieblich gelagerten Flügeln, die mit ihren distalen Flügelspitzen an einer einen Arbeitsraum begrenzenden Innenumfangsfläche anliegen und dabei den Arbeitsraum in einen Saugraum und einen Druckraum unterteilen, und mit einem Sauganschluss für den Saugraum und einem Druckanschluss für den Druckraum.The invention relates to a vane pump with a cup-shaped housing, a rotor rotatably mounted in the housing, a plurality of rotatably mounted in the rotor orthogonal to the axis of rotation vanes abut with their distal wing tips on a working space defining inner peripheral surface and thereby divide the working space into a suction chamber and a pressure chamber , and with a suction connection for the suction chamber and a pressure connection for the pressure chamber.
Flügelzellenpumpen mit einem derartigen Aufbau sind bekannt. Sie weisen in der Regel ein Gehäuse auf, in welchem ein Rotor drehbar gelagert ist, wobei sich der Rotor in einem Arbeitsraum befindet. Derartige Flügelzellenpumpen werden unter anderem auch in Fahrzeugen eingesetzt, wo zum Beispiel der Motor des Kraftfahrzeugs den Rotor in Drehung versetzt. Diese Flügelzellenpumpen werden mit Öl geschmiert, welches auch dazu dient, die Dichtspalt zwischen Flügel und Arbeitsraum abzudichten. Aus der DE 100 29 969 C1 ist eine Flügelzellenpumpe bekannt, bei welcher der Rotor verschwenkbar im Gehäuse gelagert ist, wodurch der Volumenstrom vertellt werden kann. Sehr hohe Volumenströme oder Drücke können mit einer solchen Pumpe aber nicht erzielt werden.Vane pumps of such a construction are known. They usually have a housing in which a rotor is rotatably mounted, wherein the rotor is located in a working space. Such vane pumps are used inter alia in vehicles, where, for example, the engine of the motor vehicle rotates the rotor. These vane pumps are lubricated with oil, which also serves to seal the sealing gap between the wing and working space. From DE 100 29 969 C1 a vane pump is known, in which the rotor is mounted pivotably in the housing, whereby the volume flow can be vertellt. However, very high volume flows or pressures can not be achieved with such a pump.
Der Erfindung liegt die Aufgabe zugrunde, eine Flügelzellenpumpe bereit zu stellen, mit der hohe Volumenströme oder Drücke erzielt werden können.The invention has for its object to provide a vane pump, can be achieved with the high volume flows or pressures.
Diese Aufgabe wird mit einer Flügelzellenpumpe der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass die Länge der Erstreckung des Saugraums in Umfangsrichtung geringer ist, als die Länge der Erstreckung des Druckraums in Umfangsrichtung.This object is achieved with a vane pump of the type mentioned according to the invention that the length of the extension of the suction chamber in the circumferential direction is smaller than the length of the extension of the pressure chamber in the circumferential direction.
Die erfindungsgemäße Flügelzellenpumpe besitzt den wesentlichen Vorteil, dass das Fluid, insbesondere Luft, über eine große Wegstrecke komprimiert wird, wodurch höher Drücke erzielt werden. Bei trocken laufenden Pumpen kann dadurch der Leckluftstrom optimal ausgeglichen werden. Der Umschlingungswinkel des Druckraums ist größer als der Umschlingungswinkel des Saugraums, so dass die Luft länger komprimiert und eine höherer Druck erreicht wird. Der Arbeitsraum ist durch diese Maßnahme asymmetrisch gekrümmt. Der Saugraum erstreckt sich von der Stelle, an welcher der Rotor von der Innenumfangsfläche des Arbeitsraums abhebt bis zu der Stelle, an welcher die Innenumfangsfläche am weitesten vom Rotor entfernt ist. Entsprechendes gilt für den Druckraum, der sich von dieser Stelle, bis zur Stelle erstreck, an welcher der Rotor wieder die Innenumfangsfläche berührt.The vane pump according to the invention has the significant advantage that the fluid, in particular air, is compressed over a large distance, whereby higher pressures are achieved. With dry running pumps, the leakage air flow can be optimally compensated. The wrap angle of the pressure chamber is greater than the wrap angle of the suction chamber, so that the air is compressed longer and a higher pressure is reached. The working space is asymmetrically curved by this measure. The suction space extends from the point where the rotor lifts from the inner peripheral surface of the working space to the point where the inner peripheral surface is farthest from the rotor. The same applies to the pressure chamber, which extends from this point to the point at which the rotor again touches the inner peripheral surface.
Bei einer Weiterbildung der Erfindung ist vorgesehen, dass der Saugraum einen Umschlingungswinkel von 50° bis 90°, insbesondere von 70° aufweist. Somit kann sich über den verbleibenden Rest des Umfangs der Druckraum erstrecken. Dabei weist der Druckraum einen Umschlingungswinkel von 120° bis 180°, insbesondere von 150° auf.In a further development of the invention it is provided that the suction chamber has a wrap angle of 50 ° to 90 °, in particular of 70 °. Thus, the pressure space can extend over the remainder of the circumference. In this case, the pressure chamber has a wrap angle of 120 ° to 180 °, in particular of 150 °.
Mit Vorzug ist das Volumen des Saugraums kleiner, als das Volumen des Druckraums. Außerdem erfolgt gemäß einem Ausführungsbeispiel die Volumenzunahme des Saugraums schneller, als die Volumenabnahme im Druckraums. Dies bedeutet, dass die Druckzunahme im Saugraum schneller erfolgt, als im Druckraum. Im Saugraum wird das Einströmen der Fluids durch den Umgebungsdruck unterstützt. Im Druckraum wird der Druck dagegen langsamer aufgebaut.With preference, the volume of the suction chamber is smaller than the volume of the pressure chamber. In addition, according to one embodiment, the volume increase of the suction chamber is faster than the decrease in volume in the pressure chamber. This means that the pressure increase in the suction chamber is faster than in the pressure chamber. In the suction chamber, the inflow of the fluids is supported by the ambient pressure. In contrast, the pressure in the pressure chamber is built up more slowly.
Erfindungsgemäß erfolgt die Volumenzunahme im Saugraum im wesentlichen kontinuierlich. Das Fluid strömt also im wesentlichen gleichmäßig in den Saugraum ein.According to the invention, the volume increase in the suction chamber is substantially continuous. The fluid thus flows substantially uniformly into the suction chamber.
Bei einer Weiterbildung der Erfindung erfolgt die Volumenabnahme des Druckraums in drei Stufen, wobei die Volumenabnahme in der ersten und dritten Stufe größer ist, als in der zweiten Stufe. In der dritten Stufe wird das Fluid beschleunigt, wodurch das Ausstoß des Fluids aus dem Druckraum und dadurch die weitestgehend vollständige Entleerung unterstützt wird.In a further development of the invention, the volume decrease of the pressure chamber takes place in three stages, wherein the volume decrease in the first and third stages is greater than in the second stage. In the third stage, the fluid is accelerated, whereby the ejection of the fluid from the pressure chamber and thus the largely complete emptying is supported.
Bei einem bevorzugten Ausführungsbeispiel der Erfindung weist die erste Stufe einen Umschlingungswinkel von 80°, die zweite Stufe einen Umschlingungswinkel von 130° und/oder die dritte Stufe einen Umschlingungswinkel von 40°, jeweils +/- 20°, auf. Die Beschleunigung erfolgt also über eine Wegstrecke von etwa 10% des Umfangs des Rotors.In a preferred embodiment of the invention, the first stage has a wrapping angle of 80 °, the second stage a wrapping angle of 130 ° and / or the third stage a wrapping angle of 40 °, respectively +/- 20 °. The acceleration is thus over a distance of about 10% of the circumference of the rotor.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist. Dabei können die in der Zeichnung dargestellten sowie in der Beschreibung und in den Ansprüchen erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein.Further advantages, features and details of the invention will become apparent from the subclaims and the following description in which a particularly preferred embodiment is described in detail with reference to the drawing. It can in the drawing illustrated as well as in the description and in the claims mentioned features each individually to be inventive or in any combination essential to the invention.
In der Zeichnung zeigen:In the drawing show:
Figur 1 eine Draufsicht auf eine Flügelzellenpumpe, insbesondere eine trocken laufende Flügelzellen­pumpe, mit abgenommenem Gehäusedeckel; undFigure 1 is a plan view of a vane pump, in particular a dry-running vane pump, with removed housing cover; and
Figur 2 eine Abwicklung des Saugraums und des sich anschließenden Druckraums.Figure 2 shows a development of the suction chamber and the subsequent pressure chamber.
In der Figur 1 ist mit dem Bezugszeichen 10 eine Flügelzellenpumpe bezeichnet, bei welcher das Gehäuse 12 einen Sauganschluss 14 besitzt, der in einen Innenraum 16 ausmündet. In diesem Innenraum 16 befindet sich ein insgesamt mit 18 bezeichneter Rotor, in welchem sieben Flügel 20 orthogonal zur Drehachse 22 verschieblich gelagert ist. Der Rotor 18 liegt exzentrisch im Innenraum 16 und berührt die Innenumfangsfläche 24 des Innenraums 16 zwischen dem Sauganschluss 14 und einem Druckanschluss 26.In FIG. 1, the reference numeral 10 designates a vane cell pump, in which the housing 12 has a suction connection 14, which opens into an interior 16. In this interior 16 is a generally designated 18 rotor, in which seven Wing 20 is mounted orthogonal to the axis of rotation 22 slidably. The rotor 18 is located eccentrically in the inner space 16 and contacts the inner peripheral surface 24 of the inner space 16 between the suction port 14 and a pressure port 26.
Der Sauganschluss 14 mündet in einen Arbeitsraum 28, der von den Flügeln 20 in einen Saugraum 30 und einen Druckraum 32 unterteilt wird. Der Übergang vom Saugraum 30 zum Druckraum 32 befindet sich dort, wo die Innenumfangsfläche 24 des ersten Arbeitsraums 26 den größten Abstand 34 zum Rotor 18 aufweist.The suction connection 14 opens into a working space 28 which is subdivided by the wings 20 into a suction space 30 and a pressure space 32. The transition from the suction chamber 30 to the pressure chamber 32 is located where the inner peripheral surface 24 of the first working space 26 has the largest distance 34 to the rotor 18.
Die Figur 2 zeigt eine Abwicklung des Saugraums 30 und des sich unmittelbar an diesen anschließenden Druckraums 32. Die Abszisse gibt den Umschlingungswinkel an, wobei sich der Saugraum 30 von 0° bis 70° und der Druckraum von 70° bis 320° erstreckt. Die Ordinate gibt den Abstand der Innenumfangsfläche 24 vom Rotor 18 in mm an. Deutlich erkennbar ist, dass im Saugraum 30 das Volumen schnell und kontinuierlich zunimmt, wohingegen das Volumen im Druckraum 32 diskontinuierlich abnimmt. Diese Abnahme vollzieht sich in drei Stufen, wobei die erste Stufe 36 sich von 70° bis 150° erstreckt und der Abstand zur Innenumfangsfläche 24 auf etwa die Hälfte reduziert wird. Die zweite Stufe 38 erstreckt sich von 150° bis 280° und der Abstand zur Innenumfangsfläche 24 wird wiederum um die Hälfte reduziert. In der dritten Stufe 48, von 280° bis 320°, wird das Fluid nochmals stark komprimiert und dadurch beschleunigt ausgestoßen. Die Volumenabnahme in den Stufen 36, 38 und 40 verläuft im Wesentlichen linear.FIG. 2 shows a developed view of the suction chamber 30 and of the pressure space 32 directly adjoining it. The abscissa indicates the wrap angle, wherein the suction space 30 extends from 0 ° to 70 ° and the pressure space from 70 ° to 320 °. The ordinate indicates the distance of the inner peripheral surface 24 from the rotor 18 in mm. It can clearly be seen that in the suction chamber 30, the volume increases rapidly and continuously, whereas the volume in the pressure chamber 32 decreases discontinuously. This decrease takes place in three stages, wherein the first stage 36 extends from 70 ° to 150 ° and the distance to the inner peripheral surface 24 is reduced to about half. The second stage 38 extends from 150 ° to 280 ° and the distance to the inner peripheral surface 24 is again reduced by half. In the third stage 48, from 280 ° to 320 °, the fluid is again strongly compressed and thereby expelled accelerated. The volume decrease in stages 36, 38 and 40 is substantially linear.

Claims (11)

  1. Flügelzellenpumpe (10) mit einem topfförmigen Gehäuse (12), einem im Gehäuse (12) drehbar gelagerten Rotor (18), mehreren im Rotor (18) orthogonal zur Drehachse (22) verschieblich gelagerten Flügeln (20), die mit ihren distalen Flügelspitzen an einer einen Arbeitsraum (28) begrenzenden Innenumfangsfläche (24) anliegen und dabei den Arbeitsraum (28) in einen Saugraum (30) und einen Druckraum (32) unterteilen, und mit einem Sauganschluss (14) für den Saugraum (30) und einem Druckanschluss (26) für den Druckraum (32), dadurch gekennzeichnet, dass die Länge der Erstreckung des Saugraums (30) in Umfangsrichtung geringer ist, als die Länge der Erstreckung des Druckraums (32) in Umfangsrichtung.Vane pump (10) with a cup-shaped housing (12), a rotatably mounted in the housing (12) rotor (18), in the rotor (18) orthogonal to the axis of rotation (22) slidably mounted wings (20) with their distal wing tips an inner peripheral surface (24) delimiting a working chamber (28) and subdividing the working chamber (28) into a suction chamber (30) and a pressure chamber (32), and with a suction connection (14) for the suction chamber (30) and a pressure connection ( 26) for the pressure chamber (32), characterized in that the length of the extension of the suction chamber (30) in the circumferential direction is less than the length of the extension of the pressure chamber (32) in the circumferential direction.
  2. Flügelzellenpumpe nach Anspruch 1, dadurch gekennzeichnet, dass der Arbeitsraum (26) und/oder der Druckraum (32) asymmetrisch gekrümmt ist bzw. sind.Vane pump according to claim 1, characterized in that the working space (26) and / or the pressure chamber (32) is or are asymmetrically curved.
  3. Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Saugraum (30) einen Umschlingungswinkel von 50° bis 90°, insbesondere von 70° aufweist.Vane pump according to one of the preceding claims, characterized in that the suction chamber (30) has a wrap angle of 50 ° to 90 °, in particular of 70 °.
  4. Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Druckraum (32) einen Umschlingungswinkel von 220° bis 280°, insbesondere von 250° aufweist.Vane pump according to one of the preceding claims, characterized in that the pressure chamber (32) has a wrap angle of 220 ° to 280 °, in particular of 250 °.
  5. Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Volumen des Saugraums (30) kleiner ist, als das Volumen des Druckraums (32).Vane pump according to one of the preceding claims, characterized in that the volume of the suction chamber (30) is smaller than the volume of the pressure chamber (32).
  6. Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Volumenzunahme im Saugraum (30) schneller erfolgt, als die Volumenabnahme des Druckraums (32).Vane pump according to one of the preceding claims, characterized in that the volume increase in the suction chamber (30) is faster than the decrease in volume of the pressure chamber (32).
  7. Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Volumenzunahme im Saugraums (30) im wesentlichen kontinuierlich erfolgt.Vane pump according to one of the preceding claims, characterized in that the volume increase in the suction chamber (30) takes place substantially continuously.
  8. Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Volumenabnahme im Druckraum (32) diskontinuierlich erfolgt.Vane pump according to one of the preceding claims, characterized in that the volume decrease in the pressure chamber (32) is discontinuous.
  9. Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Volumenabnahme im Druckraum (32) in drei Stufen erfolgt, wobei die Volumenabnahme in der ersten und dritten Stufe (36 und 40) schneller erfolgt, als in der zweiten Stufe (38).Vane pump according to one of the preceding claims, characterized in that the volume decrease in the pressure chamber (32) takes place in three stages, wherein the volume decrease in the first and third stages (36 and 40) is faster than in the second stage (38).
  10. Flügelzellenpumpe nach Anspruch 9, dadurch gekennzeichnet, dass die erste Stufe (36) einen Umschlingungswinkel von 80°, die zweite Stufe (38) einen Umschlingungswinkel von 130° und/oder die dritte Stufe (40) einen Umschlingungswinkel von 40°, jeweils +/- 20°, aufweist bzw. aufweisen.Vane pump according to claim 9, characterized in that the first stage (36) has a wrapping angle of 80 °, the second stage (38) has a wrapping angle of 130 ° and / or the third stage (40) has a wrapping angle of 40 °, respectively + / - 20 °, or have.
  11. Flügelzellenpumpe nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Volumenabnahme in den drei Stufen (36, 38 und 40) linear erfolgt.Vane pump according to claim 9 or 10, characterized in that the volume decrease in the three stages (36, 38 and 40) is linear.
PCT/EP2012/060888 2011-06-24 2012-06-08 Vane pump WO2012175349A2 (en)

Applications Claiming Priority (2)

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DE201110078035 DE102011078035B4 (en) 2011-06-24 2011-06-24 Vane pump
DE102011078035.1 2011-06-24

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WO2012175349A3 WO2012175349A3 (en) 2013-11-14

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10029969C1 (en) 2000-06-26 2001-08-30 Joma Hydromechanic Gmbh Vane pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299097A (en) * 1980-06-16 1981-11-10 The Rovac Corporation Vane type compressor employing elliptical-circular profile
US5310326A (en) * 1992-09-14 1994-05-10 Mainstream Engineering Corporation Rotary compressor with improved bore configuration and lubrication system
US7674096B2 (en) * 2004-09-22 2010-03-09 Sundheim Gregroy S Portable, rotary vane vacuum pump with removable oil reservoir cartridge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10029969C1 (en) 2000-06-26 2001-08-30 Joma Hydromechanic Gmbh Vane pump

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WO2012175349A3 (en) 2013-11-14
DE102011078035B4 (en) 2014-01-16
DE102011078035A1 (en) 2012-12-27

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