EP1553299B1 - Pompe volumétrique à palette - Google Patents

Pompe volumétrique à palette Download PDF

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Publication number
EP1553299B1
EP1553299B1 EP20040023261 EP04023261A EP1553299B1 EP 1553299 B1 EP1553299 B1 EP 1553299B1 EP 20040023261 EP20040023261 EP 20040023261 EP 04023261 A EP04023261 A EP 04023261A EP 1553299 B1 EP1553299 B1 EP 1553299B1
Authority
EP
European Patent Office
Prior art keywords
blade
positive displacement
displacement pump
pump according
wing
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
EP20040023261
Other languages
German (de)
English (en)
Other versions
EP1553299A2 (fr
EP1553299A3 (fr
Inventor
Reiner Schmid
Willi Dipl.-Ing. Schneider
Bernd Hess
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
Publication of EP1553299A2 publication Critical patent/EP1553299A2/fr
Publication of EP1553299A3 publication Critical patent/EP1553299A3/fr
Application granted granted Critical
Publication of EP1553299B1 publication Critical patent/EP1553299B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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
    • F04C2/3445—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 vanes having the form of rollers, slippers or the like

Definitions

  • the invention relates to a positive displacement pump with a wing for mutual separation of the two chambers in the housing space of the pump housing, having the features of the preamble of claim 1.
  • a vane pump which has a divided wing, wherein the mutually facing ends of the wing parts have teeth and tooth gaps over which they engage with each other.
  • the two wing parts are not adequately supported at their facing ends against tangential forces acting on the wing tips.
  • a positive displacement pump in which the wing consists of two wing sections, the tiered facing end faces are formed and the individual stages nut- and spring-like mesh. Although such a wing can be changed in its length, however, the individual wing sections are supported only slightly from each other.
  • the object underlying the invention is now to provide a positive displacement pump in which the wing parts are better supported against acting on the wing tips forces.
  • the two wing sections abut each other at their mutually facing side surfaces and are thereby secured against tilting. Guiding the two wing sections is provided by the two facing side surfaces having grooves and tongues extending in the longitudinal direction of the wing, i. which are orthogonal to the drive shaft.
  • the two wing sections can only slide together in the longitudinal direction and are prevented by the grooves and springs, to shift in the direction of the drive shaft.
  • the wing sections are formed symmetrically, have a flat profile and / or that the wing sections are identical. These embodiments have the significant advantage that the wing sections are relatively simple and thus inexpensive to produce and that, in particular, by the identical design of the wing sections, storage is simplified.
  • each wing section has, at least in sections, the complete height, length and / or thickness of the wing.
  • the grooves and springs are designed to form a labyrinth seal.
  • the space between the grooves and springs is dimensioned so that temperature fluctuations of the wing do not lead to jamming or loss of leadership.
  • the grooves have a depth which corresponds to 20% to 50%, in particular 25% to 33%, of the thickness of the wing.
  • a groove depth of 25% of the thickness of the wing the advantage is achieved that the entire wing has substantially the same wall thickness, so that in injection-molded wings no cavities must be provided so that the stability of the wing is not affected.
  • a preferred embodiment provides that the wing sections have uniform wall thicknesses. This creates the possibility that the wing sections can be easily manufactured by injection molding. Die castings made by die casting are also conceivable.
  • FIG. 1 shows a perspective view of a total of 10 designated positive displacement pump, which a Pump housing 12 and a cylinder head 14 includes, in which a drive shaft 16 is mounted.
  • a rotor 18 is mounted, which has a parallel to the axis of the drive shaft 16 recess 20 which extends through the rotor center in the illustrated embodiment, wherein in the recess 20 a generally designated 22 wings is slidably mounted.
  • the wing 22 protrudes with its two ends 24 and 26 out of the recess 20 of the rotor 18 and is by means of sealing strips 28 on the inner peripheral wall 30 of the rotor 18 at.
  • the sealing strips 28 are pivotally attached to the ends 24 and 26, so that they rest permanently on the inner peripheral wall 30 via two line contacts.
  • the ends 24 and 26 may lie directly against the inner peripheral wall 30 of the rotor 18.
  • the wing 22 is shown in a perspective view and it is clearly seen that this apart from the two sealing strips 28 consists of two wing sections 32 and 34.
  • the two wing sections 32 and 34 are identical and lie with their side surfaces 36 to each other. These side surfaces 36 are provided with grooves 38 and springs 40 which extend in an alternating sequence in the direction of the longitudinal axis of the blade 22, i. orthogonal to the axis of the drive shaft 16 are aligned.
  • the cross section of the grooves 38 and springs 40 is substantially rectangular, as is apparent from the cross section V-V in Figure 5.
  • each wing section 32 and 34 is offset by a shoulder 42 in its length and height and that the two wing sections 32 and 34 via a paragraph 44 in the Thickness is deposited.
  • each wing section 32 and 34 extends over approximately 90% of the overall length of the wing 22, which has the advantage that the wing sections 32 and 34 are supported within the recess 20 at points radially outwardly, ie radially outward Area of the rotor circumference are, so that the tilting moments relatively high counter moments can be met. The tilting tendency is thus reduced to a minimum.
  • Figure 3 which shows a section III-III through the center of the wing 22 in the longitudinal direction, shows the engagement of the spring 40 of the wing section 34 in the grooves 38 of the wing section 32 and in particular the over a wide range extending overlap, resulting in a optimal guidance, on the other hand causes a very good seal.
  • the springs 40 bear not only with their side surfaces on the side walls of the grooves 38, but are also based with their base at the bottom of the groove 38 from.
  • Such a configured wing 22 can be extended by more than 50% of its length, yet provides optimum rigidity and guidance, and does not tend to tilt within the recess 20 of the rotor 18.
  • FIG. 5 clearly shows how the wing section 34 completely overlaps the wing section 32 on the upper side shown there, thereby also undergoing support on the opposite side of the recess 20.
  • the grooves 38 and springs 40 extend over about 20% of the total thickness of the blade 22, thereby providing the uniform thicknesses of the wing sections 32 and 34 as much as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (11)

  1. Pompe volumétrique (10) avec une ailette (22) pour la séparation réciproque de deux chambres dans l'espace du corps, l'ailette (22) étant entraînable par un arbre d'entraînement (16) logé dans le corps de la pompe (12) et étant guidée à travers ce dernier de manière déplaçable radialement à celui-ci, dans un plan parallèle à l'arbre d'entraînement (16), du fait que ladite ailette est maintenue dans un évidement (20) d'un rotor (18), monté de manière mobile dans l'espace du corps et entraînable par l'arbre d'entraînement (16), et qu'elle s'appuie à son extrémité sur la paroi circonférentielle intérieure (30) de l'espace du corps en assurant son étanchéité, l'ailette (22) présentant deux pièces partielles d'ailette (32 et 34), alignées entre elles et mobiles indépendamment l'une de l'autre et posées l'une contre l'autre en se chevauchant partiellement, caractérisée en ce que les pièces partielles d'ailette (32 et 34) sont engrenées ensemble sur leurs faces latérales (36) se faisant face, par languettes et rainures, les rainures (38) et les languettes (40) s'étendant orthogonalement à l'arbre d'entraînement (16).
  2. Pompe volumétrique selon la revendication 1, caractérisée en ce que les pièces partielles d'ailette (32 et 34) présentent une forme symétrique.
  3. Pompe volumétrique selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que les pièces partielles d'ailette (32 et 34) présentent un profil plat.
  4. Pompe volumétrique selon l'une quelconque des revendications précédentes, caractérisée en ce que les pièces partielles d'ailette (32 et 34) sont identiques.
  5. Pompe volumétrique selon l'une quelconque des revendications précédentes, caractérisée en ce que les rainures (38) et languettes (40) s'étendent sur 50 à 98 %, en particulier sur 75 à 95 % de la longueur de l'ailette (22).
  6. Pompe volumétrique selon l'une quelconque des revendications précédentes, caractérisée en ce que l'ailette (22) est partiellement décalée dans sa hauteur.
  7. Pompe volumétrique selon l'une quelconque des revendications précédentes, caractérisée en ce que l'ailette (22) est partiellement décalée dans sa longueur.
  8. Pompe volumétrique selon l'une quelconque des revendications précédentes, caractérisée en ce que l'ailette (22) est partiellement décalée dans son épaisseur.
  9. Pompe volumétrique selon l'une quelconque des revendications précédentes, caractérisée en ce que les rainures (38) et languettes (40) forment une garniture labyrinthe.
  10. Pompe volumétrique selon l'une quelconque des revendications précédentes, caractérisée en ce que les rainures (38) présentent une profondeur qui correspond à 20 à 50 %, en particulier 25 à 33 % de l'épaisseur de l'ailette (22).
  11. Pompe volumétrique selon l'une quelconque des revendications précédentes, caractérisée en ce que les pièces partielles d'ailette (32 et 34) présentent des parois d'épaisseur égale.
EP20040023261 2004-01-07 2004-09-30 Pompe volumétrique à palette Expired - Fee Related EP1553299B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004001840 2004-01-07
DE200410001840 DE102004001840B3 (de) 2004-01-07 2004-01-07 Verdrängerpumpe

Publications (3)

Publication Number Publication Date
EP1553299A2 EP1553299A2 (fr) 2005-07-13
EP1553299A3 EP1553299A3 (fr) 2006-01-11
EP1553299B1 true EP1553299B1 (fr) 2007-01-10

Family

ID=34485655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040023261 Expired - Fee Related EP1553299B1 (fr) 2004-01-07 2004-09-30 Pompe volumétrique à palette

Country Status (2)

Country Link
EP (1) EP1553299B1 (fr)
DE (2) DE102004001840B3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007042134A1 (fr) * 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Pompe a rotor et ailette pour pompe a rotor
DE102005050001A1 (de) * 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Rotorpumpe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1250968A (fr) * 1960-03-10 1961-01-13 Baghuis N V Pompe ou moteur à palettes tournantes
DE3537158A1 (de) * 1984-10-26 1986-06-05 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verzahnte fluegelzellenpumpe
US5242285A (en) * 1989-12-12 1993-09-07 Acd, Inc. Cryogenic vane pump
DE50100666D1 (de) * 2000-03-15 2003-10-30 Joma Hydromechanic Gmbh Verdrängerpumpe

Also Published As

Publication number Publication date
DE502004002613D1 (de) 2007-02-22
EP1553299A2 (fr) 2005-07-13
EP1553299A3 (fr) 2006-01-11
DE102004001840B3 (de) 2005-05-25

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