EP1805396B1 - Rotary pump with a vane - Google Patents

Rotary pump with a vane Download PDF

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Publication number
EP1805396B1
EP1805396B1 EP05753043A EP05753043A EP1805396B1 EP 1805396 B1 EP1805396 B1 EP 1805396B1 EP 05753043 A EP05753043 A EP 05753043A EP 05753043 A EP05753043 A EP 05753043A EP 1805396 B1 EP1805396 B1 EP 1805396B1
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EP
European Patent Office
Prior art keywords
vane
rotor
pump according
wing
rotor pump
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 - Fee Related
Application number
EP05753043A
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German (de)
French (fr)
Other versions
EP1805396A1 (en
Inventor
Willi 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.)
Joma Polytec Kunststofftechnik GmbH
Original Assignee
Joma Hydromechanic GmbH
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Filing date
Publication date
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Application filed by Joma Hydromechanic GmbH filed Critical Joma Hydromechanic GmbH
Publication of EP1805396A1 publication Critical patent/EP1805396A1/en
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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
    • 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
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum

Definitions

  • the invention relates to a rotor pump having a pump housing and a rotatably mounted therein rotor with a wing, wherein the wing is slidably mounted in the rotor and rests with its wing tips on an inner peripheral surface of the pump housing and defines a suction chamber and a pressure chamber, wherein the wing is a constant length having.
  • a rotor pump which has a pump housing in which a rotor is arranged.
  • This rotor supports a wing, which rests against the inner peripheral side of the housing.
  • the rotor is constructed in two parts so that it can take on different lengths. This ensures that the rotor always bears against the inner peripheral surface and divides the pump chamber into a pressure chamber and into a suction chamber.
  • the wing tips are provided with inserts, which consist of a hard material.
  • inserts consist of a hard material.
  • the invention has for its object to provide a rotor pump, wherein the wear is minimal.
  • the housing of the rotor pump made of aluminum, which has the advantage that the housing can absorb high forces, has a low coefficient of thermal expansion and yet easy to work.
  • the wing is preferably made of plastic and has wing tips that are harder than the inner peripheral surface of the pump housing.
  • the wing tips are made of metal, for example titanium or a titanium alloy, a sintered material or ceramic.
  • these wing tips are formed by an insert which is inserted into the wing tips.
  • a recess is provided in the wing tip, which receives the insert loose, but this fixed in at least one transverse direction to the longitudinal axis.
  • the insert is glued, injected or cast.
  • Optimal pressure forces of the wing on the inner peripheral wall are achieved by the fact that the wing is flattened in the region of its wing tip on the pressure side, wherein the flattening is at an angle to the longitudinal axis of the wing.
  • the inner peripheral surface of the pump chamber is a circular cylindrical surface.
  • the sash then makes a sinusoidal reciprocation within the slot of the rotor.
  • the distribution of forces or the load changes at the top of the wing are then continuous and not abrupt.
  • recesses or openings are provided parallel to the wing tip and the wing is slightly more elastic due to the recesses or through openings in the longitudinal direction.
  • the wing can adapt to a heat-related expanding pressure chamber, so that the tightness is still ensured both with cold and warm rotor pumps.
  • the drawing shows a generally designated 10 wings, as used for example in rotor pumps.
  • This sash separates the pump room into a pressure chamber and a suction chamber. It touches the wing with his Wings tips 12 on the inner peripheral surface of the pump housing, which is formed circular cylindrical.
  • the wing 10 has a constant length, which is tuned to the inner diameter of the rotor housing or pump chamber.
  • the contact surface on the wing tip 12 is formed by inserts 14 which are held in groove-shaped receptacles 16.
  • the inserts 14 may be loosely inserted, so that they can move only in the direction of the longitudinal axis of the wing 10. However, there is also the possibility that the inserts 14 glued into the receptacles 16, injected or poured.
  • the inserts 14 are made of a material which has a greater hardness than the inner peripheral surface of the rotor housing. Both to reduce weight and to produce constant wall thicknesses and, if necessary. To the wing 10 in the longitudinal direction slightly elastic, this has in the first embodiment, triangular openings 18 which pass through the wing 10 in the transverse direction. According to the second embodiment FIG. 2 the openings 18 have a cross-sectionally elongated opening.
  • the wing tips 12 have a flattened side 20 and a rounded side 22.
  • the flattened side 20 is on the print side which means that in the FIG. 1 shown wing 10 rotates in the clockwise direction.

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  • 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 Erfindung betrifft eine Rotorpumpe mit einem Pumpengehäuse und einem darin drehbar gelagerten Rotor mit einem Flügel, wobei der Flügel verschieblich im Rotor gelagert ist und mit seinen Flügelspitzen an einer Innenumfangsfläche des Pumpengehäuses anliegt und einen Saugraum und einen Druckraum definiert, wobei der Flügel eine Konstante Länge aufweist.The invention relates to a rotor pump having a pump housing and a rotatably mounted therein rotor with a wing, wherein the wing is slidably mounted in the rotor and rests with its wing tips on an inner peripheral surface of the pump housing and defines a suction chamber and a pressure chamber, wherein the wing is a constant length having.

Aus der EP-A-1 471 255 ist eine Rotorpumpe bekannt, welche ein Pumpengehäuse aufweist, in welchem ein Rotor angeordnet ist. Dieser Rotor lagert einen Flügel, welcher an der Innenumfangsseite des Gehäuses anliegt. Der Rotor ist zweiteilig aufgebaut, sodass er unterschiedliche Längen annehmen kann. Dadurch ist gewährleistet, dass der Rotor stets an der Innenumfangsfläche anliegt und den Pumpenraum in einen Druckraum und in einen Saugraum aufteilt. Außerdem sind die Flügelspitzen mit Einlagen versehen, welche aus einem harten Material bestehen. Es hat sich jedoch gezeigt, dass die Materialpaarung von Innenumfangswand und Flügel unzureichend ist, so dass es zu einem hohen Verschleiß kommt.From the EP-A-1 471 255 a rotor pump is known, which has a pump housing in which a rotor is arranged. This rotor supports a wing, which rests against the inner peripheral side of the housing. The rotor is constructed in two parts so that it can take on different lengths. This ensures that the rotor always bears against the inner peripheral surface and divides the pump chamber into a pressure chamber and into a suction chamber. In addition, the wing tips are provided with inserts, which consist of a hard material. However, it has been shown that the material pairing of inner peripheral wall and wing is insufficient, so that there is a high wear.

Der Erfindung liegt die Aufgabe zugrunde, eine Rotorpumpe bereitzustellen, bei welcher der Verschleiß minimal ist.The invention has for its object to provide a rotor pump, wherein the wear is minimal.

Diese Aufgabe wird mit einer Pumpe nach Anspruch 1 gelöst.This object is achieved by a pump according to claim 1.

Bei einem bevorzugten Ausführungsbeispiel der Erfindung wird das Gehäuse der Rotorpumpe aus Aluminium hergestellt, was den Vorteil hat, dass das Gehäuse hohe Kräfte aufnehmen kann, einen geringen Wärmeausdehnungskoeffizient aufweist und dennoch einfach bearbeitbar ist. Der Flügel besteht vorzugsweise aus Kunststoff und besitzt Flügelspitzen, die härter sind, als die Innenumfangsfläche des Pumpengehäuses. Dabei bestehen die Flügelspitzen aus Metall, zum Beispiel Titan oder einer Titanlegierung, einem Sinterwerkstoff oder Keramik.In a preferred embodiment of the invention, the housing of the rotor pump made of aluminum, which has the advantage that the housing can absorb high forces, has a low coefficient of thermal expansion and yet easy to work. The wing is preferably made of plastic and has wing tips that are harder than the inner peripheral surface of the pump housing. The wing tips are made of metal, for example titanium or a titanium alloy, a sintered material or ceramic.

Mit Vorzug werden diese Flügelspitzen von einem Einsatz gebildet, der in die Flügelspitzen eingesetzt ist. Hierfür ist in der Flügelspitze eine Ausnehmung vorgesehen, die den Einsatz lose aufnimmt, diesen aber in zumindest einer Querrichtung zur Längsachse fixiert.With preference, these wing tips are formed by an insert which is inserted into the wing tips. For this purpose, a recess is provided in the wing tip, which receives the insert loose, but this fixed in at least one transverse direction to the longitudinal axis.

Bei einer Variante ist vorgesehen, dass der Einsatz eingeklebt, eingespritzt oder eingegossen ist. Durch die Wahl des Einsatzes kann eine geeignete Materialpaarung bezüglich des Materials des Rotorgehäuses gewählt werden, ohne dass hierfür unterschiedliche Flügel vorgehalten werden müssen. Der Einsatz hat zudem den Vorteil, dass im Wartungs- und/oder Reparaturfall lediglich der Einsatz und nicht der gesamte Flügel ausgetauscht werden muss.In a variant, it is provided that the insert is glued, injected or cast. By choosing the insert, a suitable material pairing with respect to the material of the rotor housing can be selected, without the need for different wings are kept. The use also has the advantage that in the maintenance and / or repair case only the insert and not the entire wing must be replaced.

Optimale Andruckkräfte des Flügels an die Innenumfangswand werden dadurch erzielt, dass der Flügel im Bereich seiner Flügelspitze auf der Druckseite abgeflacht ist, wobei die Abflachung unter einem Winkel zur Längsachse des Flügels steht.Optimal pressure forces of the wing on the inner peripheral wall are achieved by the fact that the wing is flattened in the region of its wing tip on the pressure side, wherein the flattening is at an angle to the longitudinal axis of the wing.

Mit Vorzug ist die Innenumfangsfläche des Pumpenraums eine Kreiszylinderfläche. Der Flügel vollzieht dann innerhalb des Schlitzes des Rotors eine sinusförmige Hin- und Herbewegung. Die Kräfteverteilung bzw. die Lastwechsel an der Spitze des Flügels sind dann kontinuierlich und nicht abrupt.With preference, the inner peripheral surface of the pump chamber is a circular cylindrical surface. The sash then makes a sinusoidal reciprocation within the slot of the rotor. The distribution of forces or the load changes at the top of the wing are then continuous and not abrupt.

Bei einer Weiterbildung ist vorgesehen, dass parallel zur Flügelspitze Ausnehmungen oder Durchbrüche vorgesehen sind und der Flügel aufgrund der Ausnehmungen oder durch Durchbrüche in dessen Längsrichtung geringfügig elastischer ist. Hierdurch kann der Flügel einem sich wärmebedingt dehnenden Druckraum anpassen, sodass die Dichtigkeit sowohl bei kalten als auch bei warmen Rotorpumpen nach wie vor gewährleistet ist.In a further development it is provided that recesses or openings are provided parallel to the wing tip and the wing is slightly more elastic due to the recesses or through openings in the longitudinal direction. As a result, the wing can adapt to a heat-related expanding pressure chamber, so that the tightness is still ensured both with cold and warm rotor pumps.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung zwei besonders bevorzugte Ausführungsbeispiele im Einzelnen beschrieben sind. Dabei können die in der Zeichnung dargestellten und in der Beschreibung sowie 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 two particularly preferred embodiments are described in detail with reference to the drawing. The features shown in the drawing and mentioned in the description and in the claims may each be essential to the invention individually or in any combination.

In der Zeichnung zeigen:

Figur 1
eine perspektivische Ansicht eines ersten Ausführungsbeispiels eines Flügels mit einsetzten bzw. entnommenen Einsätzen; und
Figur 2
eine perspektivische Ansicht eines zweiten Ausführungsbeispiels eines Flügels mit einsetzten bzw. entnommenen Einsätzen.
In the drawing show:
FIG. 1
a perspective view of a first embodiment of a wing with inserted or removed inserts; and
FIG. 2
a perspective view of a second embodiment of a wing with inserted or removed inserts.

Die Zeichnung zeigt einen insgesamt mit 10 bezeichneten Flügel, wie er zum Beispiel in Rotorpumpen eingesetzt wird. Dieser Flügel trennt den Pumpenraum in einen Druckraum und einen Saugraum. Dabei streift der Flügel mit seinen Flügelspitzen 12 an der Innenumfangsfläche des Pumpengehäuses, welches kreiszylindrisch ausgebildet ist. Der Flügel 10 besitzt eine konstante Länge, die auf den Innendurchmesser des Rotorgehäuses bzw. Pumpenraumes abgestimmt ist. Die Anlagefläche an der Flügelspitze 12 wird von Einsätzen 14 gebildet, die in nutenförmigen Aufnahmen 16 gehalten werden. Dabei können die Einsätze 14 lose eingelegt sein, sodass sie sich lediglich in Richtung der Längsachse des Flügels 10 bewegen können. Es besteht jedoch auch die Möglichkeit, dass die Einsätze 14 in die Aufnahmen 16 eingeklebt, eingespritzt oder eingegossen sind.The drawing shows a generally designated 10 wings, as used for example in rotor pumps. This sash separates the pump room into a pressure chamber and a suction chamber. It touches the wing with his Wings tips 12 on the inner peripheral surface of the pump housing, which is formed circular cylindrical. The wing 10 has a constant length, which is tuned to the inner diameter of the rotor housing or pump chamber. The contact surface on the wing tip 12 is formed by inserts 14 which are held in groove-shaped receptacles 16. The inserts 14 may be loosely inserted, so that they can move only in the direction of the longitudinal axis of the wing 10. However, there is also the possibility that the inserts 14 glued into the receptacles 16, injected or poured.

Die Einsätze 14 bestehen aus einem Material, welches eine größere Härte aufweist, als die Innenumfangsfläche des Rotorgehäuses. Sowohl zur Gewichtsreduzierung als auch zur Herstellung konstanter Wanddicken und ggfs. um den Flügel 10 in Längsrichtung geringfügig elastisch zu machen, weist dieser beim ersten Ausführungsbeispiel dreieckförmige Durchbrüche 18 auf, die den Flügel 10 in Querrichtung durchsetzen. Beim zweiten Ausführungsbeispiel gemäß Figur 2 weisen die Durchbrüche 18 einen im Querschnitt länglichen Durchbruch auf.The inserts 14 are made of a material which has a greater hardness than the inner peripheral surface of the rotor housing. Both to reduce weight and to produce constant wall thicknesses and, if necessary. To the wing 10 in the longitudinal direction slightly elastic, this has in the first embodiment, triangular openings 18 which pass through the wing 10 in the transverse direction. According to the second embodiment FIG. 2 the openings 18 have a cross-sectionally elongated opening.

Außerdem ist erkennbar, dass die Flügelspitzen 12 eine abgeflachte Seite 20 und eine abgerundete Seite 22 aufweisen. Die abgeflachte Seite 20 befindet sich auf der Druckseite was bedeutet, dass der in der Figur 1 dargestellte Flügel 10 in Richtung des Uhrzeigersinns dreht.In addition, it can be seen that the wing tips 12 have a flattened side 20 and a rounded side 22. The flattened side 20 is on the print side which means that in the FIG. 1 shown wing 10 rotates in the clockwise direction.

Claims (8)

  1. Rotor pump having a pump housing and a rotor which is rotatably mounted therein and has a vane (10), the vane (10) being displaceably mounted in the rotor and resting with its vane tips (12) against an inner circumferential surface of the pump housing and thereby defining a suction space and a pressure space, the vane (10) having vane tips (12) the hardness of which is greater than that of the inner circumferential surface, the inner circumferential surface consisting of metal, characterized in that the vane (10) has a constant length and in that it is flattened in the region of its vane tip (12) on the pressure side, the flattened part making an angle with the longitudinal axis of the vane (10).
  2. Rotor pump according to Claim 1, characterized in that the vane tip (12) consists of metal, sintered material or ceramic.
  3. Rotor pump according to Claim 1 or 2, characterized in that the vane tip (12) is formed by an insert (14).
  4. Rotor pump according to Claim 3, characterized in that the insert (14) is held in a recess (16) in the vane (10).
  5. Rotor pump according to Claim 3 or 4, characterized in that the insert (14) is mounted loosely but nondisplaceably in the vane (10) in at least one transverse direction to the longitudinal axis.
  6. Rotor pump according to Claim 3 or 4, characterized in that the insert (14) is fixed in by adhesive bonding, injection moulding or casting.
  7. Rotor pump according to any of the preceding claims, characterized in that the inner circumferential surface is a circular cylindrical surface.
  8. Rotor pump according to any of the preceding claims, characterized in that recesses or passages (18) are provided parallel to the vane tip(12) and, owing to these recesses or passages (18), the vane (10) is elastic in its longitudinal direction.
EP05753043A 2004-10-29 2005-06-17 Rotary pump with a vane Expired - Fee Related EP1805396B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410053521 DE102004053521A1 (en) 2004-10-29 2004-10-29 Wing for a rotor pump
PCT/EP2005/006507 WO2006048055A1 (en) 2004-10-29 2005-06-17 Vane for a rotary pump

Publications (2)

Publication Number Publication Date
EP1805396A1 EP1805396A1 (en) 2007-07-11
EP1805396B1 true EP1805396B1 (en) 2008-07-23

Family

ID=34970760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05753043A Expired - Fee Related EP1805396B1 (en) 2004-10-29 2005-06-17 Rotary pump with a vane

Country Status (3)

Country Link
EP (1) EP1805396B1 (en)
DE (2) DE102004053521A1 (en)
WO (1) WO2006048055A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005015721B3 (en) * 2005-03-31 2006-12-21 Joma-Hydromechanic Gmbh vacuum pump
DE102005050001A1 (en) 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh rotor pump
DE102005056270B3 (en) * 2005-11-14 2007-03-01 Joma-Hydromechanic Gmbh Rotary pump for pumping fluid has blade body and tip releasably connected to each other and groove in one of them in which spring engages

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02130289A (en) * 1988-11-09 1990-05-18 Toyota Autom Loom Works Ltd Vane type compressor
US5024591A (en) * 1989-06-21 1991-06-18 Diesel Kiki Co., Ltd. Vane compressor having reduced weight as well as excellent anti-seizure and wear resistance
DE4332540A1 (en) * 1993-09-24 1995-03-30 Bosch Gmbh Robert Vane pump
JP3315249B2 (en) * 1994-05-06 2002-08-19 日立金属株式会社 Rotary compressor
JPH11311188A (en) * 1998-04-24 1999-11-09 Shinjo Seisakusho:Kk Vane of vane pump
DE50100666D1 (en) * 2000-03-15 2003-10-30 Joma Hydromechanic Gmbh displacement
DE10046697A1 (en) * 2000-09-21 2002-04-11 Bosch Gmbh Robert Plastic blades for a vane vacuum pump
WO2004065795A1 (en) * 2003-01-17 2004-08-05 Luk Automobiltechnik Gmbh & Co. Kg Pump
DE50300812D1 (en) * 2003-04-24 2005-08-25 Joma Hydromechanic Gmbh Vane pump

Also Published As

Publication number Publication date
EP1805396A1 (en) 2007-07-11
DE502005004840D1 (en) 2008-09-04
WO2006048055A1 (en) 2006-05-11
DE102004053521A1 (en) 2006-05-11

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