EP1421283B1 - Wing cell pump - Google Patents
Wing cell pump Download PDFInfo
- Publication number
- EP1421283B1 EP1421283B1 EP02776658A EP02776658A EP1421283B1 EP 1421283 B1 EP1421283 B1 EP 1421283B1 EP 02776658 A EP02776658 A EP 02776658A EP 02776658 A EP02776658 A EP 02776658A EP 1421283 B1 EP1421283 B1 EP 1421283B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- spring elements
- vane pump
- spring
- plastic
- 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.)
- Expired - Lifetime
Links
- 239000004033 plastic Substances 0.000 claims description 15
- 229920003023 plastic Polymers 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 229920000965 Duroplast Polymers 0.000 claims description 2
- 239000004638 Duroplast Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 210000002105 tongue Anatomy 0.000 claims description 2
- 230000009467 reduction Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- 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
- F01C21/0845—Vane tracking; control therefor by mechanical means comprising elastic means, e.g. springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
Definitions
- the present invention relates to a vane pump for Delivery of fluids and in particular a vane pump, which as Vor fundamentaliser for a storage injection system used in motor vehicles.
- JP 61034374 a vane pump is known, in the biased the wings of the pump by means of spring elements are.
- the spring elements are individually, positively with the Rotor of the vane pump connected.
- the vane pump according to the invention for conveying fluids make sure that the wings are independent of the Speed constantly abut a ring, which the lift curve the pump provides.
- the invention is characterized from, that the rotor is made of plastic and the spring elements are captively injected into the rotor. This results in particular during assembly of the pump significant cost reductions. Through this one-piece training of rotor and spring elements can during assembly of the Rotor provided with spring elements simply as a subassembly be mounted without tedious individual spring elements must be placed in the rotor.
- the Rotor By injecting the spring elements, in particular the Rotor can be produced particularly inexpensively, so that together with the mounting advantages compared to conventional, vane pumps made of metal, one Cost reduction of over 40% results. In particular, you can through the use of plastic also in metallic Materials necessary mechanical processing steps be significantly reduced. When using plastic for the rotor can be ensured in particular that the spring elements so injected captive in the rotor are that no interruption of the rotor end faces arises. This results in a homogeneous radial sealing length of Rotor secured to the adjacent parts of the pump.
- spring tongues or coil springs are used as spring elements used.
- the spring elements are arranged in such a way that they led into recesses in which the wings are positioned at the bottom of the recesses, so that the wings biased by the spring elements to the outside become.
- the spring elements are attached to a ring.
- the spring elements are arranged on the outer circumference of the ring and stand outward. This will in particular the positioning the spring elements, e.g. during plastic injection of the rotor, much easier.
- the spring elements made of spring steel or made of plastic.
- the spring elements and the Rötor are made of plastic, the spring elements particularly preferably sprayed simultaneously with the rotor which results in further cost reductions to let.
- the wings and / or the Hubkurvenring and / or a Side window and / or a pump housing made of plastic. It is particularly preferred as a plastic Duroplast used.
- the vane pump according to the invention as prefeed pump for a fuel storage injection system, such as. a common rail system used.
- the vane pump comprises a Rotor 2, which in a known manner via a drive shaft. 9 is driven. As shown in Figs. 4 and 7, am Rotor 2 a plurality of recesses 10 are formed, in each of which a wing 4 is arranged. The wings 4 are doing guided in the radially formed recesses 10.
- the rotor is the second further arranged in a form of a ring 3 Hubkurvenelement.
- the Hubkurvenring is the third while an integral part of a housing 8 of the vane pump. It should be noted, however, that the Hubkurvenring 3 may be formed as a separate component.
- the lifting cam ring 3 is arranged eccentrically to the rotor 2, so that in a known manner by the individual wings of separate chambers of the pump arise.
- a spring member integrally which from a spring ring 6 and arranged thereon spring elements.
- 5 consists.
- the spring member is in perspective View shown.
- the spring elements 5 are on the outer circumference arranged the ring 6 and provide a spring force in radial Direction of the ring 6 ready.
- the spring component is off Made of spring steel and can be easily punched out and Bending the spring elements 5 made by about 90 ° to the annular surface become.
- the spring elements 5 are each in the recesses 10th of the rotor 2 arranged such that they the wings 4 radially pretend to the outside. This will ensure that the Wing 4 in every position and at every speed of the rotor 2 abut the lifting cam of the ring 3 (see Figure 2).
- the Rotor 2 is made of plastic and the spring component is complete as a prefabricated assembly in the rotor injected. Due to this design of the rotor will continue ensures that the two rotor end faces S, T (see Figure 3) are formed homogeneously, so that a good Sealing with respect to adjacent components of the vane pump, i.e. the housing 8 and a side window 7 (see. Figure 1), is ensured.
- the use of the ring-shaped spring component with several Spring elements thus ensures that the Flugel 4 constantly abut the lift curve and thus no loss of efficiency, even when starting a low-speed engine, occur. Furthermore, a lifting of the wings at high speeds and thus the volume flow pulsations minimized.
- the spring elements 5 support the back hydraulic loading of the wings 4.
- the inventive allows Combination of integral spring elements in one Rotor of the vane pump great competitive advantages.
- the present invention relates to a vane pump for conveying fluids with a rotor 2, a Hubkurvenring 3 and a plurality of wings 4, which are biased by spring elements 5, wherein the rotor. 2 is made of plastic and the spring elements 5 in the Rotor 2 are injected captive.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
Die vorliegende Erfindung betrifft eine Flügelzellenpumpe zur Förderung von Fluiden und insbesondere eine Flügelzellenpumpe, welche als Vorfördereinheit für ein Speichereinspritzsystem bei Kraftfahrzeugen verwendet wird.The present invention relates to a vane pump for Delivery of fluids and in particular a vane pump, which as Vorfördereinheit for a storage injection system used in motor vehicles.
Bei Speichereinspritzsystemen für Kraftfahrzeuge, wie beispielsweise bei Common-Rail-Systemen, wird neben einer Hochdruckpumpe normalerweise auch eine Vorförderpumpe verwendet. Üblicherweise werden dabei als Vorförderpumpen Flügelzellenpumpen eingesetzt, welche den notwendigen Volumenstrom sowie eine entsprechende Druckerhöhung bereitstellen können. Flügelzellenpumpen können dabei insbesondere auch bei sehr kleinen Drehzahlen (Anlasserdrehzahl) die notwendigen Betriebspunkte relativ gut gewährleisten. Die bekannten Flügelzellenpumpen sind dabei aus metallischen Werkstoffen hergestellt.In storage injection systems for motor vehicles, such as in common-rail systems, in addition to a high-pressure pump Normally also a prefeed pump used. Usually, as Vorförderpumpen vane pumps used, which the necessary volume flow as well can provide a corresponding pressure increase. Vane pumps can especially with very small Speeds (starter speed) the necessary operating points ensure relatively well. The known vane pumps are made of metallic materials.
Bei den relativ kleinen Drehzahlen von ca. 75 U/min beim Anlassen eines Fahrzeuges ist bei den bekannten Flügelzellenpumpen jedoch nachteilig, dass die Fliehkraft der Flügel allein nicht ausreicht, um eine sichere Anlage der Flügel an eine entsprechende Hubkurve eines Ringes der Pumpe zu gewährleisten. Dadurch entsteht ein verzögerter Druckaufbau bzw. Leckagen, welche zu Wirkungsgradverlusten beim Startvorgang des Kraftfahrzeugs fuhren und diesen Startvorgang somit erschweren bzw. teilweise auch unmöglich machen. Weiterhin ist es möglich, dass bei sehr hohen Drehzahlen der Flügelzellenpumpe Volumenstrompulsationen auftreten, bei denen die Flügel in partiellen Winkelbereichen der Hubkurve teilweise abheben. At the relatively low speeds of about 75 rpm when starting a vehicle is in the known vane pumps However disadvantageous that the centrifugal force of the wings alone is not enough to secure the wing to ensure a corresponding lift curve of a ring of the pump. This creates a delayed pressure build-up or leakage, which leads to efficiency losses during the starting process of the motor vehicle drove and this boot process thus make it difficult or even impossible. Farther It is possible that at very high speeds of the vane pump Volume flow pulsations occur in which the Wing in partial angular ranges of the lift curve partially take off.
Aus der JP 61034374 ist eine Flügelzellenpumpe bekannt, bei der die Flügel der Pumpe mittels Federelementen vorgespannt sind. Die Federelemente sind einzeln, formschlüssig mit dem Rotor der Flügelzellenpumpe verbunden.From JP 61034374 a vane pump is known, in the biased the wings of the pump by means of spring elements are. The spring elements are individually, positively with the Rotor of the vane pump connected.
Es ist daher Aufgabe der vorliegenden Erfindung, bei einfachem Aufbau und einfacher, kostengünstiger Herstellbarkeit eine Flügelzellenpumpe bereitzustellen, welche ein sicheres Anlegen der Flügel an einem Hubkurvenelement bereitstellt.It is therefore an object of the present invention, in a simple Construction and simple, cost-effective manufacturability To provide a vane pump, which is a safe Creation of the wings on a Hubkurvenelement bereitstellt.
Erfindungsgemäß wird die Aufgabe durch eine Flügelzellenpumpe mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche.According to the invention, the object is achieved by a vane pump solved with the features of claim 1. Advantageous developments are the subject of the dependent claims.
Die erfindungsgemäße Flügelzellenpumpe zur Förderung von Fluiden stellt dabei sicher, dass die Flügel unabhängig von der Drehzahl ständig an einem Ring anliegen, welcher die Hubkurve der Pumpe bereitstellt. Die Erfindung zeichnet sich dadurch aus, das der Rotor aus Kunststoff hergestellt ist und die Federelemente in den Rotor unverlierbar eingespritzt sind. Hierdurch ergeben sich insbesondere bei der Montage der Pumpe deutliche Kostenreduzierungen. Durch diese einstückige Ausbildung von Rotor und Federelementen kann bei der Montage der mit Federelementen versehene Rotor einfach als Unterbaugruppe montiert werden, ohne dass langwierig einzelne Federelemente in den Rotor platziert werden müssen.The vane pump according to the invention for conveying fluids Make sure that the wings are independent of the Speed constantly abut a ring, which the lift curve the pump provides. The invention is characterized from, that the rotor is made of plastic and the spring elements are captively injected into the rotor. This results in particular during assembly of the pump significant cost reductions. Through this one-piece training of rotor and spring elements can during assembly of the Rotor provided with spring elements simply as a subassembly be mounted without tedious individual spring elements must be placed in the rotor.
Durch das Einspritzen der Federelemente kann insbesondere der Rotor besonders kostengünstig hergestellt werden, so dass sich zusammen mit den Montagevorteilen im Vergleich zu herkömmlichen, aus Metall hergestellten Flügelzellenpumpen, eine Kostenreduzierung von über 40% ergibt. Insbesondere können durch die Verwendung von Kunststoff auch die bei metallischen Werkstoffen notwendigen mechanischen Bearbeitungsschritte deutlich reduziert werden. Bei der Verwendung von Kunststoff für den Rotor kann insbesondere sichergestellt werden, dass die Federelemente derart in den Rotor unverlierbar eingespritzt sind, dass keine Unterbrechung der Rotorstirnflächen entsteht. Dadurch wird eine homogene radiale Dichtlänge des Rotors zu den benachbarten Teilen der Pumpe sichergestellt. By injecting the spring elements, in particular the Rotor can be produced particularly inexpensively, so that together with the mounting advantages compared to conventional, vane pumps made of metal, one Cost reduction of over 40% results. In particular, you can through the use of plastic also in metallic Materials necessary mechanical processing steps be significantly reduced. When using plastic for the rotor can be ensured in particular that the spring elements so injected captive in the rotor are that no interruption of the rotor end faces arises. This results in a homogeneous radial sealing length of Rotor secured to the adjacent parts of the pump.
Vorzugsweise werden als Federelemente Federzungen oder Spiralfedern verwendet. Die Federelemente sind dabei derart angeordnet, dass sie in Aussparungen, in denen die Flügel geführt sind, am Boden der Aussparungen positioniert sind, so dass die Flügel durch die Federelemente nach außen vorgespannt werden.Preferably, spring tongues or coil springs are used as spring elements used. The spring elements are arranged in such a way that they led into recesses in which the wings are positioned at the bottom of the recesses, so that the wings biased by the spring elements to the outside become.
Gemäß einer besonders bevorzugten Ausgestaltung der vorliegenden Erfindung sind die Federelemente an einem Ring befestigt. Dadurch ist es möglich, dass die Federelemente ebenfalls als eine Baugruppe bereitgestellt werden. Die Federelemente sind am Außenumfang des Ringes angeordnet und stehen nach außen vor. Dadurch wird insbesondere die Positionierung der Federelemente, z.B. beim Kunststoffspritzen des Rotors, deutlich vereinfacht.According to a particularly preferred embodiment of the present invention Invention, the spring elements are attached to a ring. This makes it possible that the spring elements also be provided as an assembly. The spring elements are arranged on the outer circumference of the ring and stand outward. This will in particular the positioning the spring elements, e.g. during plastic injection of the rotor, much easier.
Weiter vorteilhaft sind die Federelemente aus Federstahl oder aus Kunststoff hergestellt. Wenn die Federelemente und der Rötor aus Kunststoff hergestellt sind, können die Federelemente besonders bevorzugt gleichzeitig mit dem Rotor gespritzt werden, wodurch sich weitere Kostenreduzierungen erzielen lassen. Further advantageous are the spring elements made of spring steel or made of plastic. When the spring elements and the Rötor are made of plastic, the spring elements particularly preferably sprayed simultaneously with the rotor which results in further cost reductions to let.
Um auch bei anderen Bauteilen der Flügelzellenpumpe herstellungsbedingte Kostenreduzierungen zu erhalten, sind vorzugsweise die Flügel und/oder der Hubkurvenring und/oder eine Seitenscheibe und/oder ein Pumpengehäuse aus Kunststoff hergestellt. Besonders bevorzugt wird dabei als Kunststoff ein Duroplast verwendet.In order to manufacture other components of the vane pump Cost reductions are preferred the wings and / or the Hubkurvenring and / or a Side window and / or a pump housing made of plastic. It is particularly preferred as a plastic Duroplast used.
Besonders bevorzugt wird die erfindungsgemäße Flügelzellenpumpe als Vorförderpumpe für ein Kraftstoff-Speichereinspritzsystem, wie z.B. einem Common-Rail-System, eingesetzt.Particularly preferred is the vane pump according to the invention as prefeed pump for a fuel storage injection system, such as. a common rail system used.
Nachfolgend wird unter Bezugnahme auf die Zeichnung ein bevorzugtes Ausführungsbeispiel einer Flügelzellenpumpe gemäß der vorliegenden Erfindung beschrieben. In der Zeichnung ist:
- Figur 1
- eine schematische Schnittansicht einer Flügelzellenpumpe gemäß einem Ausfuhrungsbeispiel der vorliegenden Erfindung;
Figur 2- eine schematische Seitenansicht der Hauptbauteile der in Figur 1 gezeigten Flügelzellenpumpe;
Figur 3- eine Schnittansicht entlang der Linie B-B von
Figur 2; Figur 4- eine Schnittansicht entlang der Linie A-A von
Figur 3; Figur 5- eine Teilschnittansicht entlang der Linie C-C in
Figur 2; Figur 6- eine perspektivische Ansicht des Federelementbauteils; und
- Figur 7
- eine perspektivische Explosionsdarstellung der Hauptbauteile der Flugelzellenpumpe.
- FIG. 1
- a schematic sectional view of a vane pump according to an exemplary embodiment of the present invention;
- FIG. 2
- a schematic side view of the main components of the vane pump shown in Figure 1;
- FIG. 3
- a sectional view taken along the line BB of Figure 2;
- FIG. 4
- a sectional view taken along the line AA of Figure 3;
- FIG. 5
- a partial sectional view taken along the line CC in Figure 2;
- FIG. 6
- a perspective view of the spring element component; and
- FIG. 7
- an exploded perspective view of the main components of the Flugelzellenpumpe.
Nachfolgend wird unter Bezugnahme auf die Figuren 1 bis 7 ein Ausführungsbeispiel der vorliegenden Erfindung beschrieben.Hereinafter, with reference to Figures 1 to 7 a Embodiment of the present invention described.
Wie in Figur 1 gezeigt, umfasst die Flügelzellenpumpe einen
Rotor 2, welcher in bekannter Weise über eine Antriebswelle 9
angetrieben wird. Wie in den Figuren 4 und 7 gezeigt, sind am
Rotor 2 mehrere Aussparungen 10 ausgebildet, in welchen jeweils
ein Flügel 4 angeordnet ist. Die Flügel 4 werden dabei
in den radial gebildeten Aussparungen 10 gefuhrt.As shown in Figure 1, the vane pump comprises a
Wie aus den Figuren 2 und 4 ersichtlich ist, ist der Rotor 2
weiter in einem als Ring 3 ausgebildeten Hubkurvenelement angeordnet.
Wie in Figur 1 dargestellt, ist der Hubkurvenring 3
dabei ein integraler Bestandteil eines Gehäuses 8 der Flügelzellenpumpe.
Es sei jedoch angemerkt, dass der Hubkurvenring
3 auch als separates Bauteil ausgebildet sein kann. Der Hubkurvenring
3 ist dabei exzentrisch zum Rotor 2 angeordnet, so
dass in bekannter Weise die durch die einzelnen Flügel von
einander getrennten Kammern der Pumpe entstehen.As can be seen in FIGS. 2 and 4, the rotor is the second
further arranged in a form of a
Wie insbesondere aus den Figuren 2 und 3 ersichtlich ist, ist
im Rotor 2 weiter ein Federbauteil integral gebildet, welches
aus einem Federring 6 und daran angeordneten Federelementen 5
besteht. In Figur 6 ist das Federbauteil in perspektivischer
Ansicht dargestellt. Die Federelemente 5 sind am Außenumfang
des Ringes 6 angeordnet und stellen eine Federkraft in radialer
Richtung des Ringes 6 bereit. Das Federbauteil ist aus
Federstahl hergestellt und kann einfach durch Ausstanzen und
Umbiegen der Federelemente 5 um ca. 90° zur Ringfläche hergestellt
werden.As can be seen in particular from Figures 2 and 3, is
further formed in the
Die Federelemente 5 sind dabei jeweils in den Aussparungen 10
des Rotors 2 derart angeordnet, dass sie die Flügel 4 radial
nach außen vorspannen. Dadurch wird sichergestellt, dass die
Flügel 4 in jeder Stellung und bei jeder Drehzahl des Rotors
2 an der Hubkurve des Ringes 3 anliegen (vgl. Figur 2). Der
Rotor 2 ist dabei aus Kunststoff hergestellt und das Federbauteil
ist als vorgefertigte Baugruppe in den Rotor komplett
eingespritzt. Durch diese Ausbildung des Rotors wird weiterhin
sichergestellt, dass die beiden Rotorstirnflächen S, T
(vgl. Figur 3) homogen ausgebildet sind, so dass eine gute
Abdichtung hinsichtlich benachbarter Bauteile der Flugelzellenpumpe,
d.h. dem Gehäuse 8 und einer Seitenscheibe 7 (vgl.
Figur 1), sichergestellt ist.The
Die Verwendung des ringformigen Federbauteils mit mehreren
Federelementen stellt somit sicher, dass die Flugel 4 ständig
an der Hubkurve anliegen und somit keine Wirkungsgradverluste,
auch beim Anlassen eines Motors mit geringen Drehzahlen,
auftreten. Weiterhin wird auch ein Abheben der Flügel
bei hohen Drehzahlen und somit die Volumenstrompulsationen
minimiert. Die Federelemente 5 unterstutzen dabei die ruckseitige
hydraulische Beaufschlagung der Flügel 4.The use of the ring-shaped spring component with several
Spring elements thus ensures that the
Da die Federelemente 5 ein integraler Bestandteil des Rotors
2 sind, können weiterhin auch insbesondere die Montagekosten
deutlich verringert werden, da keine aufwendigen Positionierungen
von Federlementen in den Aussparungen 10 des Rotors
2 notwendig sind. Somit kann erfindungsgemäß insbesondere ein
beim Startvorgang notwendiger Volumenstrom für eine Hochdruckpumpe
eines Speichereinspritzsystems für Kraftfahrzeuge
bereitgestellt werden. Insbesondere bei Verwendung von Kunststoff
als Material für Bauteile der Flügelzellenpumpe kann
eine überraschend hohe Kosteneinsparung bei der Herstellung
im Vergleich zu den bekannten Flügelzellenpumpen mit metallischen
Bauteilen erreicht werden. Somit ermöglicht die erfindungsgemäße
Kombination von integralen Federelementen in einem
Rotor der Flügelzellenpumpe große Wettbewerbsvorteile.Since the
Somit betrifft die vorliegende Erfindung eine Flügelzellenpumpe
zur Förderung von Fluiden mit einem Rotor 2, einem
Hubkurvenring 3 und einer Vielzahl von Flügeln 4, welche
mittels Federelementen 5 vorgespannt sind, wobei der Rotor 2
aus Kunststoff hergestellt ist und die Federelemente 5 in den
Rotor 2 unverlierbar eingespritzt sind.Thus, the present invention relates to a vane pump
for conveying fluids with a
Die vorliegende Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt. Es können verschiedene Abweichungen und Änderungen ausgeführt werden, ohne den Erfindungsumfang zu verlassen.The present invention is not limited to the illustrated embodiment limited. There may be different deviations and changes are made without departing from the scope of the invention to leave.
Claims (7)
- Vane pump for delivering fluids, comprising a rotor (2), a cam ring (3) and a plurality of vanes (4) which are pretensioned by means of spring elements (5), the spring elements (5) being an integral part of the rotor,
characterised in that
the rotor (2) is made out of plastic and the spring elements (5) are captively connected to the rotor (2). - Vane pump according to one of the preceding claims,
characterised in that the spring elements (5) are implemented as spring tongues or as spiral springs. - Vane pump according to one of the preceding claims,
characterised in that the spring elements (5) are disposed on a ring (6). - Vane pump according to one of the preceding claims,
characterised in that the spring elements (5) are made of spring steel or plastic. - Vane pump according to one of the preceding claims,
characterised in that the vanes (4) and/or the cam ring (3) and/or a side plate (7) and/or a pump casing (8) are made of plastic. - Vane pump according to one of Claims 2 to 6,
characterised in that a duroplast is used as the plastic material. - Vane pump according to one of the preceding Claims,
characterised in that the vane pump is used as a pre-supply pump for a high-pressure pump of a common rail injection system.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10142712 | 2001-08-31 | ||
| DE10142712A DE10142712B4 (en) | 2001-08-31 | 2001-08-31 | Vane pump |
| PCT/DE2002/003154 WO2003025399A1 (en) | 2001-08-31 | 2002-08-28 | Wing cell pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1421283A1 EP1421283A1 (en) | 2004-05-26 |
| EP1421283B1 true EP1421283B1 (en) | 2005-07-13 |
Family
ID=7697271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02776658A Expired - Lifetime EP1421283B1 (en) | 2001-08-31 | 2002-08-28 | Wing cell pump |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20040166009A1 (en) |
| EP (1) | EP1421283B1 (en) |
| DE (2) | DE10142712B4 (en) |
| WO (1) | WO2003025399A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10202721A1 (en) * | 2002-01-24 | 2003-08-14 | Siemens Ag | Vane pump |
| DE102005007602A1 (en) * | 2005-02-18 | 2006-08-24 | Siemens Ag | Vane cell pump for supplying fluids has a rotor, a lifting ring and vanes with each one moving lengthwise in a slot in a rotor |
| DE102006036756A1 (en) * | 2006-08-05 | 2008-02-07 | Zf Friedrichshafen Ag | Sliding vane pump e.g. oil pump, speed increasing method for motor vehicle, involves supplying one of blades with fluid medium if idle rotor does not rests against inner surface of cam ring, if pump is started and/or if rotor starts running |
| DE102006047510A1 (en) * | 2006-10-07 | 2008-04-17 | Zf Lenksysteme Gmbh | Vane-cell pump for fuel transport, has multiple vanes with stator that are surrounded by external ring, and spring of vane-cell pump vanes against external ring |
| DE102008006289B4 (en) | 2008-01-28 | 2018-10-04 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | impeller |
| DE102010046591B4 (en) | 2010-09-25 | 2015-03-12 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Vane pump |
| WO2013076107A2 (en) * | 2011-11-22 | 2013-05-30 | Sterling Industry Consult Gmbh | Liquid-ring vacuum pump, and impeller for a liquid-ring vacuum pump |
| DE102012213847A1 (en) | 2012-08-06 | 2014-02-20 | Zf Friedrichshafen Ag | Vane cell pump e.g. dual hub vane cell pump, for use as transmission oil pump for machine gear box in motor car, has form-fitting unit producing constrained course of wings and arranged on wings and at housing that receives rotor and ring |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2045014A (en) * | 1934-07-07 | 1936-06-23 | Gen Household Utilities Compan | Compressor |
| US3335944A (en) * | 1964-09-14 | 1967-08-15 | Conde Milking Machine Company | Rotary pump |
| DE1902187C3 (en) * | 1969-01-17 | 1978-10-12 | Alfred Teves Gmbh, 6000 Frankfurt | Rotary piston machine |
| JPS56151296A (en) * | 1980-04-24 | 1981-11-24 | Nissan Motor Co Ltd | Vane pump |
| DE3309017C2 (en) * | 1983-03-14 | 1986-02-20 | Maschinen GmbH Otto Hölz, 7988 Wangen | Rotary compressor |
| JPS6134374A (en) * | 1984-07-26 | 1986-02-18 | Matsushita Electric Ind Co Ltd | Vane rotating type compressor |
| JPS62684A (en) * | 1985-06-26 | 1987-01-06 | Matsushita Electric Ind Co Ltd | Vane type compressor |
| CH672819A5 (en) * | 1988-04-26 | 1989-12-29 | Waelchli Hans | |
| DE3909831A1 (en) * | 1989-03-25 | 1990-09-27 | Becker Kg Gebr | Sliding-vane rotary pump designed for dry running, and method for manufacturing it |
| US6053717A (en) * | 1996-11-26 | 2000-04-25 | Randy J. Dixon | Rotary pump with wiper insert |
-
2001
- 2001-08-31 DE DE10142712A patent/DE10142712B4/en not_active Expired - Fee Related
-
2002
- 2002-08-28 DE DE50203631T patent/DE50203631D1/en not_active Expired - Fee Related
- 2002-08-28 WO PCT/DE2002/003154 patent/WO2003025399A1/en not_active Application Discontinuation
- 2002-08-28 EP EP02776658A patent/EP1421283B1/en not_active Expired - Lifetime
-
2004
- 2004-02-27 US US10/789,469 patent/US20040166009A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20040166009A1 (en) | 2004-08-26 |
| WO2003025399A1 (en) | 2003-03-27 |
| EP1421283A1 (en) | 2004-05-26 |
| DE10142712A1 (en) | 2003-03-27 |
| DE10142712B4 (en) | 2005-09-29 |
| DE50203631D1 (en) | 2005-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69523642T2 (en) | Side channel pump with noise-reducing device | |
| EP0774077A1 (en) | Flow pump for use in pumping fuel from a reservoir to the engine of a motor vehicle | |
| DE102016209312A1 (en) | ELECTRIC CIRCULAR PUMP | |
| WO2019002206A1 (en) | Screw spindle pump, fuel pump assembly, and fuel pump unit | |
| EP1421283B1 (en) | Wing cell pump | |
| DE102009028095A1 (en) | Pump e.g. internal gear pump, for use in fuel injection system for e.g. conveying fuel into combustion chamber of internal combustion engine of car, has electric motor including stator partially arranged within cylinder | |
| DE10035900A1 (en) | Internal gear pump | |
| EP1561028B1 (en) | High-pressure fuel pump comprising a ball valve in the low-pressure inlet | |
| WO2002018798A1 (en) | Aggregate for conveying fuel | |
| DE10024741B4 (en) | Side channel pump | |
| WO2006045647A1 (en) | Vane pump | |
| DE10129449A1 (en) | High-pressure fuel pump for internal combustion engines with improved part-load behavior | |
| EP2406498B1 (en) | Controllable coolant pump | |
| DE10344459A1 (en) | Piston pump, in particular high-pressure piston pump | |
| DE4415875A1 (en) | Screw-type compressor | |
| DE29819363U1 (en) | Compensator | |
| DE3117557A1 (en) | COOLING WATER PUMP FOR A BOAT DRIVE | |
| WO2010097247A1 (en) | Radial piston pump comprising a cam shaft having partially hardened cam edges | |
| DE102012003151A1 (en) | Internal gear pump for use in motor vehicle, has housing comprising inlet and outlet for fluid to be delivered, where housing is arranged with latching element through which two pump stages are connected with each other | |
| DE10341840B4 (en) | Fuel delivery unit | |
| DE10313745A1 (en) | High pressure pump for IC engine fuel injection device e.g. for automobile, with hydrodynamic lubrication of bearings for ring segments operating pistons of pump elements | |
| DE102011082644A1 (en) | Pump assembly for fuel injection system used for injecting fuel into combustion chamber of internal combustion engine, has inlet and discharge bores which are opened into engine room with respect to rotation direction of drive shaft | |
| DE102020108266B4 (en) | Shaft component coupling structure and fluid machine with the same | |
| DE19906625B4 (en) | delivery unit | |
| EP0990799A1 (en) | Water coolant pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20040128 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050713 |
|
| REF | Corresponds to: |
Ref document number: 50203631 Country of ref document: DE Date of ref document: 20050818 Kind code of ref document: P |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20060418 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20080822 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20090827 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090820 Year of fee payment: 8 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100302 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20100828 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20110502 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100828 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100831 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100828 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20090914 Year of fee payment: 8 |