EP1471255A1 - Vane pump - Google Patents

Vane pump Download PDF

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Publication number
EP1471255A1
EP1471255A1 EP03400016A EP03400016A EP1471255A1 EP 1471255 A1 EP1471255 A1 EP 1471255A1 EP 03400016 A EP03400016 A EP 03400016A EP 03400016 A EP03400016 A EP 03400016A EP 1471255 A1 EP1471255 A1 EP 1471255A1
Authority
EP
European Patent Office
Prior art keywords
rotor
wing
insert
pump
pump according
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.)
Granted
Application number
EP03400016A
Other languages
German (de)
French (fr)
Other versions
EP1471255B1 (en
Inventor
Willi Dipl.-Ing. Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Joma Hydromechanic GmbH
Original Assignee
Bayerische Motoren Werke AG
Joma Hydromechanic GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG, Joma Hydromechanic GmbH filed Critical Bayerische Motoren Werke AG
Priority to EP20030400016 priority Critical patent/EP1471255B1/en
Priority to DE50300812T priority patent/DE50300812D1/en
Publication of EP1471255A1 publication Critical patent/EP1471255A1/en
Application granted granted Critical
Publication of EP1471255B1 publication Critical patent/EP1471255B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0011—Radial sealings for working fluid of rigid material
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • 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
    • 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
    • F01C21/0881—Construction of vanes or vane holders the vanes consisting of two or more parts
    • 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
    • F04C18/3442—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 the surfaces of the inner and outer member, forming the inlet and outlet opening
    • 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
    • F04C2/34—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 the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—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 the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—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 the movement defined in groups F04C2/08 or F04C2/22 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
    • F04C2/3442—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 the movement defined in groups F04C2/08 or F04C2/22 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 the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • 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
    • F04C2230/00—Manufacture
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/22—Manufacture essentially without removing material by sintering
    • 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
    • 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
    • F05C2225/10—Polyimides, e.g. Aurum
    • 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
    • F05C2225/12—Polyetheretherketones, e.g. PEEK

Definitions

  • the invention relates to a rotor pump with a pump housing with a pump room, one rotatably mounted in the pump room Rotor, a wing that is slidably mounted in the rotor and that supports the Pump room divided into two chambers and at the Inner circumferential wall of the pump chamber bears, so that the wing with respect to the rotor and with respect to the inner peripheral wall Relative movement executes.
  • a positive displacement pump is known from DE-A-100 12 406 become a rotor within a housing space is rotatably mounted, a wing in a groove slidably picks up. Both the rotor and the wing are made of plastic which has the advantage of being low dynamic forces occur.
  • This task is the rotor pump of the aforementioned Art solved according to the invention in that at least part of the components carrying out relative movements with one another an insert forming a bearing is provided.
  • the rotor pump according to the invention where at the points Relative movements occur built-in insert provides the significant advantage that the Frictional forces can be reduced and therefore not only the Wear but also the warming can be reduced.
  • the wing can be guided more precisely because the Insert also serves as a guide.
  • the rotor points a wing receiving groove
  • the groove is partially occupied with the insert.
  • the insert can also be provided on the wing, so that this is moved with the wing.
  • the insert is preferred however in the groove, so that the insert does not match the Wing oscillates.
  • the wing in Area of its wing edge lying against the inner peripheral wall is provided with the insert. This edge forms the Contact surfaces of the wing, which also causes the seal becomes.
  • the edge can be in the longitudinal direction of the wing be slidably mounted in an open groove.
  • plastic polyether ether ketone (PEEK), polyether sulfide (PES), syndiotactic polystyrene (SPS), polyvinyl sulfide (PPS) or polyimide are used.
  • the insert is injected. This has the main advantage that the individual components can be manufactured quickly and inexpensively can and that the deposits are captive in the respective Component are held.
  • the insert is positively attached.
  • this can be done using a Dovetail connection done, or the deposits can also only be inserted in corresponding interpretations and are carried out by the adjacent, a relative movement Component secured against falling out.
  • the insert essentially has one rectangular or plate-like shape. This allows the insoles are manufactured inexpensively without them certain forms of the rotor, the wing or the like need to be adjusted. Especially with sintered materials this shape is an advantage.
  • the insert is preferably made of metal, ceramic, from one Sintered material or made of a plastic, the Hardness of the plastic is greater than the hardness of the wing, Rotors or the material of the inner peripheral wall.
  • the wing tip and for the inner peripheral wall hard materials are used to Example metal.
  • FIG. 1 shows a rotor pump, designated overall by 2, which, in a known manner, a pump housing 10, one in its e.g. Circular cylindrical pump chamber 12 can be rotated eccentrically mounted rotor 16, the drive shaft 14 rotatably is connected, and a radially displaceable in this mounted wing 18, one at its wing ends Insert 20 and 22 has.
  • a pump housing 10 one in its e.g. Circular cylindrical pump chamber 12 can be rotated eccentrically mounted rotor 16
  • the drive shaft 14 rotatably is connected
  • a radially displaceable in this mounted wing 18, one at its wing ends Insert 20 and 22 has.
  • the rotor 18 has a hollow cylindrical rotor jacket 24, in which one extends along its inner diameter extending inner wing guide strip 26 is provided, in which the wing 18 is received in a radially displaceable manner.
  • the Reference numerals 28 denote inner rotor bars which are used for Serve stiffening of the rotor shell 24.
  • the rotor 16 is like shown in Figure 4, to the drive shaft 14 towards the receptacle of the wing 18 slotted and on the drive shaft 14th attached, inserted or molded.
  • the pump chamber 12 is what is not shown for the sake of simplicity is tightly sealed on both ends, the Drive shaft 14 which is a liquid-tight housing end wall interspersed. At the pump chamber 12 are also an inflow and a drain line connected to a to be promoted Fluid to and from the rotor pump 2 again to be able to dissipate.
  • the inserts 20 and 22 of the wing 18 are strip-like formed and in each case to the free ends of the wing 18th open grooves 30 and 32 received radially displaceable. Another embodiment provides that the inserts 20 and 22 are injected into the wing 18 and therefore rigid with are connected to this.
  • the Wing 18 divided into two and consists of two wing halves during operation of the rotor pump 2 due to centrifugal force push outside.
  • the inserts 20 and 22 slide on the Inner peripheral wall 34 of the pump chamber 12.
  • the vane 18 is in the rotor 6 in a guide groove 36 in mounted radially and leads with respect the inner wall of the guide groove 36 relative movements.
  • the Inner wall of the guide groove 36 is made of deposits 38 and 40 formed, which rest on the flat sides of the wing 18.
  • the Deposits 38 and 40 extend the entire length of the Guide groove 36, which is clearly shown in Figure 2. There are also the two inserted in the grooves 30 and 32 Deposits 22 of the wing 18 can be seen.
  • the inserts 38 and 40 are injected into the rotor 18 and have a tongue and groove connection in the axial direction of the rotor 18, which is designated by 42, which is shown in FIG. 3 is recognizable.
  • Figure 4 shows the back of the rotor 16, to which the Drive shaft 14 is molded and the guide groove 36th closes on the drive side.
  • Inserts 20 and 22 as well as 38 and 40 are recognizable, which are on wing 18 abut or with which the wing 18 on the Inner peripheral wall 34 of the pump chamber 12 abuts.
  • the deposits 20 and 22 and 38 and 40 each form a bearing for the adjacent components that perform relative movements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

A vane pump assembly has a rotor pump (2) with a pump housing (10), and a pump zone (12). A rotor (16) rotates within the pump zone, with sliding vanes (18) against the inner peripheral wall (34) to divide the pump zone into two chambers. The vane pump assembly has a rotor pump (2) with a pump housing (10), and a pump zone (12). A rotor (16) rotates within the pump zone, with sliding vanes (18) against the inner peripheral wall (34) to divide the pump zone into two chambers. The vanes have a relative movement in relation to the rotor and the inner wall, and at least one of the moving components has an insert (20,22) forming a mounting, of metal, ceramics, a sintered material or a plastics. The rotor and/or the vane and or the inner wall of the pump zone are of a plastics material.

Description

Die Erfindung betrifft eine Rotorpumpe mit einem Pumpengehäuse mit einem Pumpenraum, einem im Pumpenraum drehbar gelagerten Rotor, einem im Rotor verschieblich gelagerten Flügel, der den Pumpenraum in zwei Kammern unterteilt und an der Innenumfangswand des Pumpenraums anliegt, sodass der Flügel bezüglich des Rotors und bezüglich der Innenumfangswand eine Relativbewegung ausführt.The invention relates to a rotor pump with a pump housing with a pump room, one rotatably mounted in the pump room Rotor, a wing that is slidably mounted in the rotor and that supports the Pump room divided into two chambers and at the Inner circumferential wall of the pump chamber bears, so that the wing with respect to the rotor and with respect to the inner peripheral wall Relative movement executes.

Aus der DE-A-100 12 406 ist eine Verdrängerpumpe bekannt geworden, bei der innerhalb eines Gehäuseraums ein Rotor drehbar gelagert ist, der in einer Nut einen Flügel verschieblich aufnimmt. Sowohl der Rotor als auch der Flügel bestehen aus Kunststoff was den Vorteil hat, dass geringe dynamische Kräfte auftreten.A positive displacement pump is known from DE-A-100 12 406 become a rotor within a housing space is rotatably mounted, a wing in a groove slidably picks up. Both the rotor and the wing are made of plastic which has the advantage of being low dynamic forces occur.

Bei einer derartigen Pumpe besteht der Wunsch, dass die Laufflächen, an welchen Relativbewegungen auftreten, so ausgestaltet sein sollten, dass sie sich weniger stark erwärmen.With such a pump, there is a desire that the Treads on which relative movements occur, so should be designed to be less strong heat.

Diese Aufgabe wird bei einer Rotorpumpe der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass wenigstens ein Teil der zueinander Relativbewegungen ausführenden Bauteile mit einer ein Lager bildenden Einlage versehen ist.This task is the rotor pump of the aforementioned Art solved according to the invention in that at least part of the components carrying out relative movements with one another an insert forming a bearing is provided.

Die erfindungsgemäße Rotorpumpe mit den an den Stellen wo Relativbewegungen auftreten eingebauten Einlage bietet den wesentlichen Vorteil, dass aufgrund der Einlagen die Reibungskräfte verringert werden und dadurch nicht nur der Verschleiß sondern auch die Erwärmung reduziert werden. Außerdem kann der Flügel genauer geführt werden, da die Einlage zudem als Führung dient.The rotor pump according to the invention where at the points Relative movements occur built-in insert provides the significant advantage that the Frictional forces can be reduced and therefore not only the Wear but also the warming can be reduced. In addition, the wing can be guided more precisely because the Insert also serves as a guide.

So weist zum Beispiel bei einem Ausführungsbeispiel der Rotor eine den Flügel aufnehmende Nut auf, wobei die Nut bereichsweise mit der Einlage besetzt ist. Selbstverständlich kann die Einlage auch am Flügel vorgesehen sein, sodass diese mit dem Flügel mitbewegt wird. Bevorzugt wird die Einlage jedoch in der Nut angebracht, sodass die Einlage nicht mit dem Flügel mitoszilliert.For example, in one embodiment, the rotor points a wing receiving groove, the groove is partially occupied with the insert. Of course the insert can also be provided on the wing, so that this is moved with the wing. The insert is preferred however in the groove, so that the insert does not match the Wing oscillates.

Bei einer Weiterbildung ist vorgesehen, dass der Flügel im Bereich seiner an der Innenumfangswand anliegenden Flügelkante mit der Einlage versehen ist. Diese Kante bildet die Anlageflächen des Flügels, wodurch auch die Dichtung bewirkt wird. Die Kante kann dabei in Längsrichtung des Flügels verschieblich in einer randoffenen Nut gelagert sein.In a further development it is provided that the wing in Area of its wing edge lying against the inner peripheral wall is provided with the insert. This edge forms the Contact surfaces of the wing, which also causes the seal becomes. The edge can be in the longitudinal direction of the wing be slidably mounted in an open groove.

Mit Vorzug bestehen der Rotor und/oder der Flügel und/oder der die Innenumfangswand aufweisende Teil des Pumpenraumes aus Kunststoff. Hierfür werden zum Beispiel Polyetheretherketon (PEEK), Polyethersulfid (PES), syndiotaktisches Polystyrol (SPS), Polyvenylensulfid (PPS) oder Polyimid verwendet.The rotor and / or the wing and / or preferably exist the part of the pump chamber having the inner peripheral wall Plastic. For example, polyether ether ketone (PEEK), polyether sulfide (PES), syndiotactic polystyrene (SPS), polyvinyl sulfide (PPS) or polyimide are used.

Bei einem bevorzugten Ausführungsbeispiel ist die Einlage eingespritzt. Dies hat den wesentlichen Vorteil, dass die einzelnen Bauteile schnell und preiswert hergestellt werden können und dass die Einlagen verliersicher im jeweiligen Bauteil gehalten werden.In a preferred embodiment, the insert is injected. This has the main advantage that the individual components can be manufactured quickly and inexpensively can and that the deposits are captive in the respective Component are held.

Eine andere Ausführungsform sieht vor, dass die Einlage formschlüssig befestigt ist. Dies kann zum Beispiel über eine Schwalbenschwanzverbindung erfolgen, oder die Einlagen können auch lediglich in entsprechende Auslegungen eingelegt sein und werden durch das anliegende, eine Relativbewegung ausführende Bauteil gegen Herausfallen gesichert. Another embodiment provides that the insert is positively attached. For example, this can be done using a Dovetail connection done, or the deposits can also only be inserted in corresponding interpretations and are carried out by the adjacent, a relative movement Component secured against falling out.

Mit Vorzug weist die Einlage eine im Wesentlichen rechteckförmige oder plattenförmige Form auf. Dadurch können die Einlagen preiswert hergestellt werden, ohne dass diese an bestimmte Formen des Rotors, des Flügels oder dergleichen angepasst werden müssen. Insbesondere bei Sinterwerkstoffen ist diese Formgebung von Vorteil.Preferably, the insert essentially has one rectangular or plate-like shape. This allows the insoles are manufactured inexpensively without them certain forms of the rotor, the wing or the like need to be adjusted. Especially with sintered materials this shape is an advantage.

Mit Vorzug ist die Einlage aus Metall, Keramik, aus einem Sinterwerkstoff oder aus einem Kunststoff gefertigt, wobei die Härte des Kunststoffs größer ist als die Härte des Flügels, Rotors oder des Materials der Innenumfangswand. Es ist jedoch auch denkbar, dass sowohl für die Flügelspitze als auch für die Innenumfangswand harte Materialien verwendet werden, zum Beispiel Metall.The insert is preferably made of metal, ceramic, from one Sintered material or made of a plastic, the Hardness of the plastic is greater than the hardness of the wing, Rotors or the material of the inner peripheral wall. However, it is also conceivable for both the wing tip and for the inner peripheral wall hard materials are used to Example metal.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist. Dabei können die in Zeichnung dargestellten sowie in den Ansprüchen und in der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungsgemäß wesentlich sein.Further advantages, features and details of the invention result from the subclaims and from the following description, in which with reference to the Drawing a particularly preferred embodiment in Individual is described. You can use the drawing shown as well as in the claims and in the description mentioned features each individually or in any Combination may be essential according to the invention.

In der Zeichnung zeigen:

Figur 1:
eine perspektivische, teilweise aufgebrochene Darstellung der Rotorpumpe;
Figur 2:
eine perspektivische Darstellung auf die Stirnseite des Rotors;
Figur 3:
eine perspektivische Darstellung des Rotors in Seitenansicht; und
Figur 4:
eine perspektivische Darstellung des Rotors in Rückansicht.
The drawing shows:
Figure 1:
a perspective, partially broken away view of the rotor pump;
Figure 2:
a perspective view of the front of the rotor;
Figure 3:
a perspective view of the rotor in side view; and
Figure 4:
a perspective view of the rotor in rear view.

Die Figur 1 zeigt eine insgesamt mit 2 bezeichnete Rotorpumpe, die in bekannter Weise ein Pumpengehäuse 10, einen in dessen z.B. kreiszylindrischen Pumpenraum 12 exzentrisch drehbar gelagerten Rotor 16, der mit einer Antriebswelle 14 drehfest verbunden ist, sowie einen in diesem radial verschieblich gelagerten Flügel 18, der an seinen Flügelenden jeweils eine Einlage 20 und 22 aufweist.FIG. 1 shows a rotor pump, designated overall by 2, which, in a known manner, a pump housing 10, one in its e.g. Circular cylindrical pump chamber 12 can be rotated eccentrically mounted rotor 16, the drive shaft 14 rotatably is connected, and a radially displaceable in this mounted wing 18, one at its wing ends Insert 20 and 22 has.

Der Rotor 18 weist einen hohlzylindrischen Rotormantel 24 auf, in dem eine sich entlang seines Innendurchmessers erstreckende, innere Flügelführungsleiste 26 vorgesehen ist, in der der Flügel 18 radial verschieblich aufgenommen ist. Die Bezugszeichen 28 bezeichnen Rotorinnenstäbe, die zur Aussteifung des Rotormantels 24 dienen. Der Rotor 16 ist, wie in Figur 4 dargestellt, zur Antriebswelle 14 hin zur Aufnahme des Flügels 18 geschlitzt und auf die Antriebswelle 14 aufgesteckt, eingesteckt oder angespritzt.The rotor 18 has a hollow cylindrical rotor jacket 24, in which one extends along its inner diameter extending inner wing guide strip 26 is provided, in which the wing 18 is received in a radially displaceable manner. The Reference numerals 28 denote inner rotor bars which are used for Serve stiffening of the rotor shell 24. The rotor 16 is like shown in Figure 4, to the drive shaft 14 towards the receptacle of the wing 18 slotted and on the drive shaft 14th attached, inserted or molded.

Der Pumpenraum 12 ist, was einfachheitshalber nicht gezeigt ist, an beiden Stirnseiten dicht verschlossen, wobei die Antriebswelle 14 die eine Gehäusestirnwand flüssigkeitsdicht durchsetzt. Am Pumpenraum 12 sind außerdem eine Zufluss- und eine Abflussleitung angeschlossen, um ein zu förderndes Strömungsmittel der Rotorpumpe 2 zu- und aus dieser wieder abführen zu können.The pump chamber 12 is what is not shown for the sake of simplicity is tightly sealed on both ends, the Drive shaft 14 which is a liquid-tight housing end wall interspersed. At the pump chamber 12 are also an inflow and a drain line connected to a to be promoted Fluid to and from the rotor pump 2 again to be able to dissipate.

Die Einlagen 20 und 22 des Flügels 18 sind leistenartig ausgebildet und in jeweils zu den freien Enden des Flügels 18 hin offenen Nuten 30 und 32 radial verschieblich aufgenommen. Eine andere Ausführungsform sieht vor, dass die Einlagen 20 und 22 in den Flügel 18 eingespritzt sind und daher starr mit diesem verbunden sind. Bei dieser Ausführungsform ist der Flügel 18 zweigeteilt und besteht aus zwei Flügelhälften, die beim Betrieb der Rotorpumpe 2 fliehkraftbedingt radial nach außen drängen. Dabei gleiten die Einlagen 20 und 22 auf der Innenumfangswand 34 des Pumpenraums 12.The inserts 20 and 22 of the wing 18 are strip-like formed and in each case to the free ends of the wing 18th open grooves 30 and 32 received radially displaceable. Another embodiment provides that the inserts 20 and 22 are injected into the wing 18 and therefore rigid with are connected to this. In this embodiment, the Wing 18 divided into two and consists of two wing halves during operation of the rotor pump 2 due to centrifugal force push outside. The inserts 20 and 22 slide on the Inner peripheral wall 34 of the pump chamber 12.

Der Flügel 18 ist im Rotor 6 in eine Führungsnut 36 in radialer Richtung verschieblich gelagert und führt bezüglich der Innenwand der Führungsnut 36 Relativbewegungen aus. Die Innenwand der Führungsnut 36 wird von Einlagen 38 und 40 gebildet, die an den Flachseiten des Flügels 18 anliegen. Die Einlagen 38 und 40 erstrecken sich über die gesamte Länge der Führungsnut 36, was deutlich in Figur 2 dargestellt ist. Dort sind auch die beiden in die Nuten 30 und 32 eingesetzten Einlagen 22 des Flügels 18 erkennbar.The vane 18 is in the rotor 6 in a guide groove 36 in mounted radially and leads with respect the inner wall of the guide groove 36 relative movements. The Inner wall of the guide groove 36 is made of deposits 38 and 40 formed, which rest on the flat sides of the wing 18. The Deposits 38 and 40 extend the entire length of the Guide groove 36, which is clearly shown in Figure 2. There are also the two inserted in the grooves 30 and 32 Deposits 22 of the wing 18 can be seen.

Die Einlagen 38 und 40 sind in den Rotor 18 eingespritzt und besitzen in axialer Richtung des Rotors 18 eine Nut-Feder-Verbindung, die mit 42 bezeichnet ist, was aus Figur 3 erkennbar ist.The inserts 38 and 40 are injected into the rotor 18 and have a tongue and groove connection in the axial direction of the rotor 18, which is designated by 42, which is shown in FIG. 3 is recognizable.

Die Figur 4 zeigt die Rückseite des Rotors 16, an welche die Antriebswelle 14 angespritzt ist und die Führungsnut 36 antriebsseitig verschließt. Auch hier sind deutlich die Einlagen 20 und 22 sowie 38 und 40 erkennbar, die am Flügel 18 anliegen beziehungsweise mit denen der Flügel 18 an der Innenumfangswand 34 des Pumpenraums 12 anliegt. Die Einlagen 20 und 22 sowie 38 und 40 bilden dabei jeweils ein Lager für die anliegenden, Relativbewegungen ausführenden Bauteile.Figure 4 shows the back of the rotor 16, to which the Drive shaft 14 is molded and the guide groove 36th closes on the drive side. Here, too, are clear Inserts 20 and 22 as well as 38 and 40 are recognizable, which are on wing 18 abut or with which the wing 18 on the Inner peripheral wall 34 of the pump chamber 12 abuts. The deposits 20 and 22 and 38 and 40 each form a bearing for the adjacent components that perform relative movements.

Aufgrund der Einlagen 20 und 22 sowie 38 und 40 wird die Reibung zwischen der Führungsnut 36 und dem Flügel 18 sowie zwischen dem Flügel 18 und der Innenumfangswand 34 des Pumpenraums 12 stark herabgesetzt, wodurch zum Einen das Verlustmoment verringert, zum Anderen die eingebrachte Wärme reduziert wird. Außerdem verringert sich der Verschleiß der relativ zueinander bewirkenden Bauteile.Due to the deposits 20 and 22 as well as 38 and 40 the Friction between the guide groove 36 and the wing 18 as well between the wing 18 and the inner peripheral wall 34 of the Pump room 12 greatly reduced, which on the one hand Torque loss is reduced, and secondly the heat introduced is reduced. In addition, the wear of the components causing relative to each other.

Claims (11)

Rotorpumpe (2) mit einem Pumpengehäuse (10) mit einem Pumpenraum (12), einem im Pumpenraum (12) drehbargelagerten Rotor (16), einem im Rotor (16) verschieblich gelagerten Flügel (18), der den Pumpenraum (12) in zwei Kammern unterteilt und an der Innenumfangswand (34) des Pumpenraums (12) anliegt, sodass der Flügel (18) bezüglich des Rotors (16) und der Rotor (16) bezüglich der Innenumfangsand (34) eine Relativbewegung ausführt, dadurch gekennzeichnet, dass wenigstens ein Teil der zueinander Relativbewegungen ausführenden Bauteile mit einer ein Lager bildenden Einlage (20, 22, 38, 40) versehen ist.Rotor pump (2) with a pump housing (10) with a pump chamber (12), a rotor (16) rotatably mounted in the pump chamber (12), a wing (18) slidably mounted in the rotor (16) which divides the pump chamber (12) into two Divided chambers and abuts the inner peripheral wall (34) of the pump chamber (12), so that the wing (18) with respect to the rotor (16) and the rotor (16) executes a relative movement with respect to the inner peripheral sand (34), characterized in that at least one Part of the components executing relative movements to one another is provided with an insert (20, 22, 38, 40) forming a bearing. Rotorpumpe nach Anspruch 1, dadurch gekennzeichnet, dass der Rotor (16) eine den Flügel (18) aufnehmende Nut (36) aufweist und die Nut (36) bereichsweise mit einer Einlage (38, 40) besetzt ist.Rotor pump according to claim 1, characterized in that the rotor (16) has a groove (36) receiving the wing (18) and the groove (36) is partially covered with an insert (38, 40). Rotorpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Flügel (18) bereichsweise mit der Einlage besetzt ist.Rotor pump according to one of the preceding claims, characterized in that the wing (18) is partially covered with the insert. Rotorpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Flügel (18) im Bereich seiner an der Innenumfangswand (34) anliegenden Flügelkante mit der Einlage (20, 22) belegt ist.Rotor pump according to one of the preceding claims, characterized in that the wing (18) is covered with the insert (20, 22) in the area of its wing edge lying against the inner circumferential wall (34). Rotorpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rotor (16) und/oder der Flügel (18) und/oder der die Innenumfangswand (34) aufweisende Teil des Pumpenraums (12) aus Kunststoff bestehen.Rotor pump according to one of the preceding claims, characterized in that the rotor (16) and / or the wing (18) and / or the part of the pump chamber (12) having the inner peripheral wall (34) consist of plastic. Rotorpumpe nach Anspruch 5, dadurch gekennzeichnet, dass der Kunststoff ein Polyetheretherketon (PEEK), ein Polyethersulfid (PES), ein syndiotaktisches Polystyrol (SPS), ein Polyvenylensulfid (PPS) oder ein Polyimid ist.Rotor pump according to claim 5, characterized in that the plastic is a polyether ether ketone (PEEK), a polyether sulfide (PES), a syndiotactic polystyrene (SPS), a polyvinyl sulfide (PPS) or a polyimide. Rotorpumpe nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Einlage (20, 22, 38, 40) eingespritzt ist.Rotor pump according to claim 5 or 6, characterized in that the insert (20, 22, 38, 40) is injected. Rotorpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Einlage (20, 22, 38, 40) formschlüssig befestigt ist.Rotor pump according to one of the preceding claims, characterized in that the insert (20, 22, 38, 40) is fastened in a form-fitting manner. Rotorpumpe nach einem der vorhergehenden Ansprüche dadurch gekennzeichnet, dass die Einlage (20, 22, 38, 40) eine im Wesentlichen rechteckige Form aufweist.Rotor pump according to one of the preceding claims, characterized in that the insert (20, 22, 38, 40) has a substantially rectangular shape. Rotorpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Einlage (20, 22, 38, 40) plattenförmig ist. Rotor pump according to one of the preceding claims, characterized in that the insert (20, 22, 38, 40) is plate-shaped. Rotorpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Einlage (20, 22, 38, 40) aus Metall, Keramik, einem Sinterwerkstoff oder einem Kunststoff besteht, dessen Härte größer ist als die Härte des Flügels (18), des Rotors (16) und des Materials der Innenumfangswand (34).Rotor pump according to one of the preceding claims, characterized in that the insert (20, 22, 38, 40) consists of metal, ceramic, a sintered material or a plastic, the hardness of which is greater than the hardness of the wing (18), of the rotor ( 16) and the material of the inner peripheral wall (34).
EP20030400016 2003-04-24 2003-04-24 Vane pump Expired - Lifetime EP1471255B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20030400016 EP1471255B1 (en) 2003-04-24 2003-04-24 Vane pump
DE50300812T DE50300812D1 (en) 2003-04-24 2003-04-24 Vane pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20030400016 EP1471255B1 (en) 2003-04-24 2003-04-24 Vane pump

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EP1471255B1 EP1471255B1 (en) 2005-07-20

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
WO2006048055A1 (en) * 2004-10-29 2006-05-11 Joma-Hydromechanic Gmbh Vane for a rotary pump
EP1707816A1 (en) 2005-03-31 2006-10-04 Joma-Hydromechanic GmbH Vacuum pump
DE102005031589A1 (en) * 2005-07-06 2007-01-11 Schaeffler Kg Wasserpumpenflügelrad
WO2007042135A1 (en) * 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Rotor pump
WO2007042134A1 (en) 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Rotor pump and vane for a rotor pump
WO2007054155A1 (en) 2005-11-14 2007-05-18 Joma-Hydromechanic Gmbh Vacuum pump
WO2007054163A1 (en) * 2005-11-14 2007-05-18 Joma-Hydromechanic Gmbh Vacuum pump
WO2007054162A1 (en) * 2005-11-14 2007-05-18 Joma-Hydromechanic Gmbh Rotor pump
DE102006016244A1 (en) * 2006-03-31 2007-10-04 Joma-Hydromechanic Gmbh Rotor pump e.g. vacuum pump, has rotor rotatably supported within interior space of pump housing, where slot of rotor is provided with inserts respectively placed at both sides facing impeller, where insert is steel sheet piece
WO2007115782A1 (en) * 2006-04-11 2007-10-18 Vhit S.P.A. A rotor for a vane pump, made of plastic material reinforced by metallic foil

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE102006034758B4 (en) 2006-07-24 2011-03-31 Joma-Polytec Gmbh rotor pump

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WO2002025113A1 (en) * 2000-09-21 2002-03-28 Robert Bosch Gmbh Plastic vane for a vane-cell vacuum pump

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US2410596A (en) * 1943-11-09 1946-11-05 Aaron C Bradford Sliding vane engine or pump
US2679973A (en) * 1951-06-08 1954-06-01 John W Berg Materials moving apparatus
US2903971A (en) * 1957-05-27 1959-09-15 Lowell J Collins Pumps
FR2175295A5 (en) * 1972-03-08 1973-10-19 Reich Fa Wilhelm
EP1113175A1 (en) * 1998-09-08 2001-07-04 Ebara Corporation Vane type rotary machine
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WO2002025113A1 (en) * 2000-09-21 2002-03-28 Robert Bosch Gmbh Plastic vane for a vane-cell vacuum pump

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048055A1 (en) * 2004-10-29 2006-05-11 Joma-Hydromechanic Gmbh Vane for a rotary pump
DE102004053521A1 (en) * 2004-10-29 2006-05-11 Joma-Hydromechanic Gmbh Wing for a rotor pump
EP1707816A1 (en) 2005-03-31 2006-10-04 Joma-Hydromechanic GmbH Vacuum pump
DE102005015721B3 (en) * 2005-03-31 2006-12-21 Joma-Hydromechanic Gmbh vacuum pump
DE102005031589A1 (en) * 2005-07-06 2007-01-11 Schaeffler Kg Wasserpumpenflügelrad
WO2007042135A1 (en) * 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Rotor pump
WO2007042134A1 (en) 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Rotor pump and vane for a rotor pump
WO2007054155A1 (en) 2005-11-14 2007-05-18 Joma-Hydromechanic Gmbh Vacuum pump
WO2007054163A1 (en) * 2005-11-14 2007-05-18 Joma-Hydromechanic Gmbh Vacuum pump
WO2007054162A1 (en) * 2005-11-14 2007-05-18 Joma-Hydromechanic Gmbh Rotor pump
DE102006016244A1 (en) * 2006-03-31 2007-10-04 Joma-Hydromechanic Gmbh Rotor pump e.g. vacuum pump, has rotor rotatably supported within interior space of pump housing, where slot of rotor is provided with inserts respectively placed at both sides facing impeller, where insert is steel sheet piece
WO2007115782A1 (en) * 2006-04-11 2007-10-18 Vhit S.P.A. A rotor for a vane pump, made of plastic material reinforced by metallic foil
US8246332B2 (en) 2006-04-11 2012-08-21 Vhit S.P.A. Rotor for a vane pump, made of plastic material reinforced by metallic foil

Also Published As

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EP1471255B1 (en) 2005-07-20

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