EP2002084B1 - Pompe à rotor et ailette destinée à une pompe à rotor - Google Patents

Pompe à rotor et ailette destinée à une pompe à rotor Download PDF

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Publication number
EP2002084B1
EP2002084B1 EP06818881A EP06818881A EP2002084B1 EP 2002084 B1 EP2002084 B1 EP 2002084B1 EP 06818881 A EP06818881 A EP 06818881A EP 06818881 A EP06818881 A EP 06818881A EP 2002084 B1 EP2002084 B1 EP 2002084B1
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EP
European Patent Office
Prior art keywords
vane
truss
wing
tip
main body
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.)
Active
Application number
EP06818881A
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German (de)
English (en)
Other versions
EP2002084A1 (fr
Inventor
Willi Schneider
Martin Thoma
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 GmbH
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Joma Polytec GmbH
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Publication date
Application filed by Joma Polytec GmbH filed Critical Joma Polytec GmbH
Publication of EP2002084A1 publication Critical patent/EP2002084A1/fr
Application granted granted Critical
Publication of EP2002084B1 publication Critical patent/EP2002084B1/fr
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Anticipated expiration legal-status Critical

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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
    • 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
    • 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

Definitions

  • the invention relates to a wing for a rotor pump with a pump housing and a rotor rotatably mounted therein, wherein the wing is slidably mounted in the rotor and rests with its protruding from the rotor, provided on a wing body wing tip on an inner peripheral surface of the pump housing, wherein the wing tip a is separate component and continues the wing body in the longitudinal direction.
  • the invention also relates to a rotor pump for such a wing.
  • Rotor pumps with wings which have a framework structure, are for example from DE 10 2004 034 921 B3 and the DE 10 2004 034 925 B3 known.
  • the longitudinal axis of the framework extends both transversely to the longitudinal axis of the wing and in the width direction, that is parallel to the axis of rotation of the rotor. It has been shown that in the truss penetrated liquid, such as lubricating oil, accumulates in the framework and accumulated there.
  • a vacuum pump with a housing and a blade is known, which has cavities.
  • the manufacture of this wing is complex.
  • the invention has for its object to provide a rotor pump and / or a wing of the type mentioned, which is easy to manufacture and is insensitive to the ingress of lubricating oil.
  • the axis of the truss that is, the longitudinal axis of the half-timbered chambers is parallel to the longitudinal axis of the wing.
  • the advantage is created that liquid in the wing is thrown along the half-timbered chambers in the direction of the wing tips and does not accumulate in the wing. This also creates a simple way of lubricating the pump room.
  • the truss has at least one internal compartment wall.
  • This internal compartment wall extends in the longitudinal direction of the wing and divides this into at least two half-timbered chambers whose longitudinal axes also extend parallel to the longitudinal axis of the wing.
  • the compartment wall has a deviating from 0 ° and from 90 ° angle to the external compartment walls or outer walls of the wing.
  • the internal compartment wall thus runs transversely or obliquely to the outer walls.
  • the internal compartment walls are laid so that bending forces are optimally supported.
  • the internal or a part of the internal compartment walls may also extend parallel to the outer walls.
  • the wing body is an injection molded part.
  • the wing body is made of plastic and is produced for example in an extruding machine as a continuous strand.
  • the wing body is an extrusion element.
  • the wing body is made of aluminum, for example, and also leaves as Endlosteil the continuous casting machine.
  • Such manufacturing methods are relatively inexpensive and the wing can be manufactured with high accuracy.
  • the wing body can be cut to length from an endless profile to the desired length. This is done for example by sawing or cutting by means of laser beam or water jet.
  • the assembly of the wing is done in a simple manner, that the wing tip is inserted at the free end of the wing body in the truss.
  • the truss thus serves to accommodate a portion of the wing tip, which is held in this way backlash and non-positive.
  • the wing tip of the cross-sectional shape of the or the chambers of the framework corresponding insertion pin.
  • the wing tip may also be provided with only a single insertion pin, which ensures the secure attachment of the wing tip on the wing body.
  • the one or more insertion pins are hollow.
  • the pin may be provided with one or more outflow openings, over which accumulating lubricating oil flows, these outflow openings preferably not open into the suction or pressure chamber, but in the adjacent to the wing tip boundary wall.
  • At least one insertion pin has a recess or recess on its outer surface to be introduced into a chamber and resting on the inner wall of the chamber.
  • This depression or recess has the advantage that the weight continues is reduced, but that also the depression or recess for anchoring the wing tip can be used on the wing body.
  • the plugged-in with the pin of the recess or recess region of the chamber is hineinverformbar in the recess or recess.
  • the region of the chamber opposite the indentation or recess when the spigot is inserted has a latching element which can be latched into the recess or recess.
  • This variant has the advantage that after inserting the pin in the half-timbered chamber no further step is required, since the fixation of the wing tip on the wing body automatically takes place in that the two components lock together.
  • the latching connection can be designed so that the wing tip can also be released again from the wing body, so the locking connection is a releasable latching connection.
  • the locking element is a projection or an elastic latching hook, which is formed by a tab which is U-shaped cut and slightly protruding in the direction of the depression.
  • the recess or recess may be provided on the wing body, the wing tip then having the locking element.
  • the depression or recess as well as the region lying opposite may be provided on the longitudinal broad side and / or on the longitudinal narrow side of the wing, the longitudinal broad side being preferred, since the longitudinal narrow side has a sealing function and the area may possibly have a disturbing effect.
  • the wing body and / or the wing tip may be made of metal, ceramic, plastic or a mixture thereof. It is used in each case the most suitable material, which seals well on the one hand, on the other hand has a low tendency to wear and yet allows a cheap and easy production of the wing.
  • the wing body is constructed in one piece and has at its two free ends in each case a wing tip.
  • the length of the wing can be easily adjusted by inserting spacers between the wing body and wing tip.
  • the invention also relates to a rotor pump with a wing having the above-mentioned features.
  • the rotor pump is preferably a vacuum pump.
  • FIG. 1 a total designed as a vacuum pump rotor pump, in which the housing 12 is shown without housing cover.
  • the housing 12 has a suction port 14, which opens into an interior 16.
  • this interior 16 is a generally designated 18 rotor in which a wing 20 is mounted orthogonal to the axis of rotation 22 slidably.
  • the rotor 18 passes through the housing 12, in particular a bottom 26 of the interior 16 via a drive opening 28, so that it can be driven from the outside via a rectangular section 30.
  • FIG. 2 shows a portion of the wing 20, which is composed of a wing body 32 and two wing tips 34.
  • the wing body 32 has transversely to its longitudinal direction 36 a truss structure with a truss 38 which extends in the longitudinal direction 36 within the wing body 32.
  • the truss 38 has inner compartment walls 40, 42 and 44, which also extend parallel to the longitudinal direction 36.
  • the compartment walls 40, 42 and 44 are surrounded by external compartment walls or outer walls 46 and form 48 with these specialist chambers.
  • the compartment wall 40 extends parallel to the adjacent outer wall 46 and perpendicular to the broad side walls of the wing body 32.
  • the compartment wall 42nd extends obliquely, that is, it is at a different from 0 ° or 90 ° angle to the outer walls 46.
  • the two compartment walls 40 and 42 have constant wall thicknesses.
  • the compartment wall 44 has a changing wall thickness, so that any forces acting unilaterally on the wing body 32 can be optimally supported.
  • the in the FIG. 2 shown inner compartment walls 40, 42 and 44 are to be understood only as an example.
  • the wing tip 34 has three insertion pins 50, 52 and 54, which engage in the compartment chambers 48.
  • the FIG. 3 shows the insertion pins 50, 52 and 54 for a regularly designed truss 38.
  • the insertion pins 50, 52 and 54 are hollow and continue the trays 48 to the inner end of the wing tip 34 continues.
  • the narrow side 56 of the wing tip 34 has an outlet opening 58, from which any lubricating or sealing oil, which is conveyed in the compartment chambers 48, can escape.
  • the insertion pin 54 is provided on its, the narrow side of the wing body 32 facing side with a recess 60, said depression 60 a portion 62 on the narrow side of the wing body 32 forming outer wall 46 opposite, when the wing tip 34 is inserted into the wing body 32.
  • the area 62 is designed with a smaller wall thickness and is pressed with inserted wing tip 34 in the direction of the depression 60, so that material of the wing body 32 is pressed into this depression 60. As a result, the wing tip 34 is fixed to the wing body 32.
  • the Einsteckzapfen 54 has a latching hook 64 which in a on the inside of the narrow side wall or outer wall 46 of the wing body 32nd provided, not shown depression or locking receptacle engages when the wing tip 34 is inserted into the wing body 32.
  • FIG. 4 shows a portion of the wing 20 with inserted into the wing body 32 wing tip 34, which is clearly seen that the compartment chambers 48 continue to the bottom of the wing tip 34, so that from there in a suitable manner, for example via an outlet opening 58, lubricant can flow out.
  • the wing tip 34 must be placed in order to complete the wing 20. In the case of repair, that is with worn wing tip 34, this only has to be subtracted from the wing body 32 and replaced by a new wing tip 34.

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

Abstract

L'invention concerne une ailette destinée à une pompe à rotor comportant un carter de pompe et un rotor logé rotativement dans le carter de pompe, l'ailette étant logée de façon coulissante dans le rotor et s'appuyant contre une surface périphérique intérieure du carter de pompe avec sa pointe faisant saillie hors du rotor, prévue sur un corps d'ailette. La pointe d'ailette est un composant séparé et prolonge le corps d'ailette dans sa direction longitudinale, le corps d'ailette présentant une structure en treillis perpendiculairement à sa direction longitudinale. L'invention concerne également une pompe à rotor comportant une telle ailette.

Claims (14)

  1. Pale (20) pour une pompe à rotor (10) comportant un carter (12) et un rotor (18) monté rotatif dans ce dernier, ladite pale (20) étant logée mobile dans le rotor (18) et, avec sa pointe (34) prévue sur un corps de pale (32) et s'avançant hors du rotor (18), étant en appui sur une surface périphérique intérieure du carter (12) de la pompe, la pointe de pale (34) étant une pièce séparée et prolongeant le corps de pale (32) dans son sens longitudinal (36), caractérisée en ce que le corps de pale (32) est extrudé ou coulé en continu et comporte, transversalement à son sens longitudinal (36), une structure cloisonnée avec des cloisons (40, 42, 44) et des chambres (48) s'étendant dans le sens longitudinal (36).
  2. Pale selon la revendication 1, caractérisée en ce que la structure cloisonnée (38) comporte au moins une cloison (40, 42, 44) intérieure.
  3. Pale selon la revendication 2, caractérisée en ce que la cloison (42) intérieure forme avec les cloisons externes ou les parois extérieures (46) de la pale (20) un angle différent de 0° et de 90°.
  4. Pale selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de pale (32) est coupé à longueur dans un profilé continu.
  5. Pale selon l'une quelconque des revendications précédentes, caractérisée en ce que la pointe de pale (34) est insérée dans la structure cloisonnée (38) au niveau de l'extrémité libre du corps de pale (32).
  6. Pale selon l'une quelconque des revendications précédentes, caractérisée en ce que la pointe de pale (34) comporte des tenons d'enfichage (50, 52, 54), en particulier de tenons d'enfichage (50, 52, 54) creux, correspondant aux chambres (48) de la structure cloisonnée (38).
  7. Pale selon la revendication 6 caractérisée en ce qu'au moins un tenon d'enfichage (54) comporte un creux (60) ou un évidement sur sa face extérieure à enficher dans une chambre (48) et en appui contre la paroi intérieure de la chambre (48).
  8. Pale selon la revendication 7 caractérisée en ce que la zone (62) de la chambre (48), située en face du creux (60) ou de l'évidement dans la position insérée du tenon (54), est apte à se déformer pour s'engager dans le creux (60) ou l'évidement.
  9. Pale selon la revendication 7, caractérisée en ce que la zone (62) de la chambre (48), située en face du creux (60) ou de l'évidement dans la position insérée du tenon (54), comporte un élément de blocage apte à se bloquer dans le creux (60) ou l'évidement, ledit élément de blocage étant une saillie ou un crochet (64) élastique.
  10. Pale selon la revendication 8 ou 9, caractérisée en ce que la zone (62) se situe sur le grand côté longitudinal et /ou sur le petit côté longitudinal du corps de pale (32) ou de la pointe de pale (34).
  11. Pale selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de pale (32) est réalisé en métal, en matière plastique ou dans un mélange de ceux-ci, et/ou la pointe de pale (34) est réalisée en métal, en céramique, en matière plastique ou dans un mélange de ceux-ci.
  12. Pale selon l'une quelconque des revendications précédentes, caractérisée en ce que deux pointes de pale (34) sont montées sur le corps de pale (32).
  13. Pompe à rotor (10) comportant une pale (20) selon l'une quelconque des revendications précédentes.
  14. Pompe à rotor selon la revendication 13, caractérisée en ce qu'il s'agit d'une pompe à vide.
EP06818881A 2006-03-31 2006-11-28 Pompe à rotor et ailette destinée à une pompe à rotor Active EP2002084B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610016243 DE102006016243A1 (de) 2006-03-31 2006-03-31 Rotorpumpe und Flügel für eine Rotorpumpe
PCT/EP2006/011400 WO2007118504A1 (fr) 2006-03-31 2006-11-28 Pompe à rotor et ailette destinée à une pompe à rotor

Publications (2)

Publication Number Publication Date
EP2002084A1 EP2002084A1 (fr) 2008-12-17
EP2002084B1 true EP2002084B1 (fr) 2012-01-04

Family

ID=37734858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818881A Active EP2002084B1 (fr) 2006-03-31 2006-11-28 Pompe à rotor et ailette destinée à une pompe à rotor

Country Status (3)

Country Link
EP (1) EP2002084B1 (fr)
DE (1) DE102006016243A1 (fr)
WO (1) WO2007118504A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014005520U1 (de) 2014-07-08 2015-10-09 Joma-Polytec Gmbh Flügelzellenpumpe zum Erzeugen eines Unterdrucks
DE202014005521U1 (de) 2014-07-08 2015-10-09 Joma-Polytec Gmbh Flügelzellenpumpe zum Erzeugen eines Unterdrucks

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20070764A1 (it) * 2007-10-26 2009-04-27 Vhit Spa Pompa a vuoto a monopaletta

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191326604A (en) * 1913-11-19 1914-09-10 Selas Lighting Company Ltd Improvements relating to Rotary Pumps or Compressors.
DE898348C (de) * 1951-04-07 1953-11-30 Rudolf Bock Drehkolbenverdichter mit doppelwandig ausgefuehrten Verdichterfluegeln
DE1236879B (de) * 1961-10-17 1967-03-16 Karl Eickmann Arbeitsschieber (Fluegel) fuer Drehkolben-maschinen
DE2157450A1 (de) * 1971-11-19 1973-05-24 Eduard Dipl Ing Abadschieff Viertakt-rotormotor mit hoeherem wirkungsgrad und geringerer entwicklung von giftgasen
GB2375374A (en) 1999-12-23 2002-11-13 Luk Automobiltech Gmbh & Co Kg Vacuum pump
DE50100666D1 (de) * 2000-03-15 2003-10-30 Joma Hydromechanic Gmbh Verdrängerpumpe
US7048526B2 (en) * 2004-05-14 2006-05-23 1564330 Ontario Inc. Shared slot vane pump
DE102004034919B3 (de) * 2004-07-09 2005-12-01 Joma-Hydromechanic Gmbh Einflügelvakuumpumpe
DE102004034925B3 (de) 2004-07-09 2006-02-16 Joma-Hydromechanic Gmbh Einflügelvakuumpumpe
DE102004034921B9 (de) * 2004-07-09 2006-04-27 Joma-Hydromechanic Gmbh Einflügelvakuumpumpe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014005520U1 (de) 2014-07-08 2015-10-09 Joma-Polytec Gmbh Flügelzellenpumpe zum Erzeugen eines Unterdrucks
DE202014005521U1 (de) 2014-07-08 2015-10-09 Joma-Polytec Gmbh Flügelzellenpumpe zum Erzeugen eines Unterdrucks
DE102015211759A1 (de) 2014-07-08 2016-01-14 Joma-Polytec Gmbh Flügelzellenpumpe zum Erzeugen eines Unterdrucks

Also Published As

Publication number Publication date
WO2007118504A1 (fr) 2007-10-25
DE102006016243A1 (de) 2007-10-04
EP2002084A1 (fr) 2008-12-17

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