EP2606235B1 - Pompe à palettes - Google Patents

Pompe à palettes Download PDF

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Publication number
EP2606235B1
EP2606235B1 EP11739038.5A EP11739038A EP2606235B1 EP 2606235 B1 EP2606235 B1 EP 2606235B1 EP 11739038 A EP11739038 A EP 11739038A EP 2606235 B1 EP2606235 B1 EP 2606235B1
Authority
EP
European Patent Office
Prior art keywords
chamfer
housing
vane
rotor
vane 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.)
Active
Application number
EP11739038.5A
Other languages
German (de)
English (en)
Other versions
EP2606235A2 (fr
Inventor
Dirk Ehrenfeld
Willi Schneider
Torsten Helle
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
Original Assignee
Joma Polytec 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 Joma Polytec GmbH filed Critical Joma Polytec GmbH
Publication of EP2606235A2 publication Critical patent/EP2606235A2/fr
Application granted granted Critical
Publication of EP2606235B1 publication Critical patent/EP2606235B1/fr
Active legal-status Critical Current
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
    • 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
    • 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
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor

Definitions

  • the invention relates to a vane pump with at least one wing, a pump housing with bottom and cover and a rotor rotatably mounted therein, wherein the at least one wing is slidably mounted in a groove in the rotor and has at least one wing tip, which protrudes from the outer peripheral surface of the rotor and rests against the inner peripheral surface of the pump housing, whereby the wing with the bottom and the lid defines a suction chamber and a pressure chamber, which has a located in the bottom and / or in the cover, radially outer inlet opening and outlet opening.
  • a vane pump which has a pump housing in which a rotor is arranged. This rotor supports several wings, which rest on the inner peripheral side of the housing and divides the pump room into work spaces. In the bottom of the pump housing is an inlet and an outlet opening, which are swept by the wings. It has been found that the inlet and outlet openings must be so far away from the rotor that the rotor in which the wings are mounted do not lie over the openings or part of the openings and cover this part. However, this means that the openings always have a distance to the optimal intake and discharge point. This is theoretically where the rotor touches the inner peripheral surface of the pump housing.
  • the DE 101 60 036 A1 which are the closest
  • the invention has for its object to provide a vane pump with a greater efficiency.
  • the peripheral edge of the Rotor which is located directly at the inlet opening and / or the outlet opening, provided with a chamfer, so that the rotor in the region of this peripheral edge due to this chamfer has a certain distance from the bottom or lid.
  • the rotor can no longer cover the inlet opening and / or outlet opening due to the chamfer, the inlet opening and / or outlet opening can be moved closer to the optimum point.
  • the chamfer extends over a portion of the peripheral edge. This section extends between two radial outlets of one or more grooves for receiving a wing.
  • the rotor has a groove and, in the case of a multi-vane pump, a plurality of grooves. The chamfer always extends between two outlets. Even if the only groove is open to one side only.
  • the peripheral edge is formed immediately after the mouth of the groove without chamfer.
  • the chamfer thus ends immediately before the mouth of the groove begins.
  • the transition of the chamfer for immediate connection to the mouth of the groove is advantageously rounded.
  • the chamfer has a triangular cross section, so that the chamfer has a first section facing the inner peripheral surface and a second section facing the bottom or the lid.
  • a chamfer can be produced in a simple manner.
  • the adjoining bottom or lid dimension of the second section is dimensioned such that it is at least as long as the radial dimension of the inlet opening and / or the outlet opening. This ensures that the inlet opening and / or the outlet opening is not completely or partially covered by the rotor.
  • the chamfer can steadily decrease in the direction of the outlet .
  • the chamfer becomes smaller in the direction of the orifice, so that it steadily merges into the wing.
  • FIG. 1 is designated by the reference numeral 10, a vane pump, in which the pump housing 12 is shown open.
  • the pump housing 12 has a suction connection 14, which is provided on a housing cover 16 and opens out in a pump interior 18.
  • this pump interior 18 is a generally designated 20 rotor, in which a plurality of vanes 22 is mounted orthogonally to the axis of rotation 24 slidably.
  • Each wing 22 is mounted radially displaceably in a groove 26, wherein the grooves 26 are provided uniformly over the circumference of the rotor 20.
  • the pump interior 18 accommodates the rotor 20 with the wings 22 with the wings 22 defining the work spaces therebetween.
  • the suction port 14 opens via an inlet opening, wherein the compressed fluid is discharged via an outlet opening 30. In the housing bottom 32, the outlet opening is not visible.
  • FIG. 3 shows a section III according to FIG. 2 wherein clearly the axis of rotation 24 and the attached rotor 20 can be seen.
  • a wing 22 is shown in section, which rests against the inner peripheral wall 34 of the pump interior 18. The wing 22 is held by two position rings 36 in this position.
  • clearly the inlet openings 28 and outlet openings 30 can be seen, which are provided in the housing cover 16 and in the housing bottom 32. In this case, the inlet opening 28 and the outlet opening 30, as realized in the illustrated embodiment, also be provided in a disc 37, whereby the housing cover 16 is easier to produce.
  • the rotor 20 has at its two virtual peripheral edges each have a chamfer 38, which in detail in FIG. 4 is shown.
  • the chamfer has a first portion 40 which extends parallel to the axis of rotation 24, and a second portion 42 which extends parallel to the housing cover 16 or the housing bottom 32.
  • the virtual peripheral edge 44 extends.
  • the section 42 is dimensioned to terminate at the edge of the inlet opening 28. In this way it is ensured that the inlet opening 28 is not covered by the rotor 20.
  • the fluid can thus flow through the inlet opening 28 and at the chamfer 38 into the working space. Accordingly, the fluid can flow unhindered on the chamfer 38 along the outlet opening 30 and through it out of the pump interior 18.
  • FIG. 1 shows a variant of the invention, in which the chamfer 38 extends to the orifice 46.
  • the size of the chamfer decreases steadily and ends immediately before the orifice, whereby the fluid is optimally deflected both during inflow and outflow.

Landscapes

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

Claims (5)

  1. Pompe à palettes (10), comportant au moins une palette (22), un carter (12) avec un fond (32) et un couvercle (16), et un rotor (20) monté rotatif dans celle-ci, ladite au moins une palette (22) étant montée de manière à coulisser dans une rainure (26) du rotor (20) et comportant au moins une pointe qui s'avance en saillie au-delà de la surface périphérique extérieure du rotor (20) et est adjacente à la paroi périphérique intérieure (34) du carter (12) de la pompe, ladite au moins une palette (22) définissant avec le fond (32) et le couvercle (16) du carter une enceinte de travail qui comporte une ouverture d'admission (28) et une ouverture d'évacuation (30) situées radialement à l'extérieur et ménagées dans le fond (32) du carter et/ou dans le couvercle (16) du carter, ledit rotor (20) étant muni sur son bord périphérique (44) d'un chanfrein (38) qui est orienté vers le fond (32) du carter et/ou le couvercle (16) du carter qui comportent l'ouverture d'admission (28) et/ou l'ouverture d'évacuation (30), ledit chanfrein (38) s'étendant sur une partie (46) du bord périphérique (44), cette partie (46) s'étendant entre deux sorties radiales d'une ou de plusieurs rainures (26) destinées à recevoir une palette (22), caractérisée en ce que le bord périphérique (44) est réalisé sans chanfrein dans la zone de jonction directe avec la sortie (46) de la rainure (26).
  2. Pompe à palettes selon la revendication 1, caractérisée en ce que le chanfrein (38) comporte une première partie (40), orientée vers la paroi périphérique intérieure (34), et une deuxième partie (42), orientée vers le fond (32) ou le couvercle (16).
  3. Pompe à palettes selon la revendication 2, caractérisée en ce que la deuxième partie (42) est au moins aussi longue que la dimension radiale de l'ouverture d'admission (28) et/ou de l'ouverture d'évacuation (30).
  4. Pompe à palettes selon la revendication 1, caractérisée en ce que le chanfrein (38) diminue en continu vers la sortie (46).
  5. Pompe à palettes selon la revendication 1, caractérisée en ce que la transition du chanfrein (38) vers la zone de jonction directe avec la sortie (46) de la rainure (26) est arrondie.
EP11739038.5A 2010-08-16 2011-07-27 Pompe à palettes Active EP2606235B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010039344A DE102010039344A1 (de) 2010-08-16 2010-08-16 Flügelzellenpumpe
PCT/EP2011/062941 WO2012022595A2 (fr) 2010-08-16 2011-07-27 Pompe à palettes

Publications (2)

Publication Number Publication Date
EP2606235A2 EP2606235A2 (fr) 2013-06-26
EP2606235B1 true EP2606235B1 (fr) 2014-09-03

Family

ID=44629528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11739038.5A Active EP2606235B1 (fr) 2010-08-16 2011-07-27 Pompe à palettes

Country Status (5)

Country Link
US (1) US9011125B2 (fr)
EP (1) EP2606235B1 (fr)
CN (1) CN103261692B (fr)
DE (1) DE102010039344A1 (fr)
WO (1) WO2012022595A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195707A (zh) * 2013-04-12 2013-07-10 贾东明 滑片式旋转活塞
DE102015120798A1 (de) * 2015-12-01 2017-06-01 Robert Bosch Automotive Steering Gmbh Verdrängerpumpe
EP4133554A1 (fr) 2020-04-10 2023-02-15 CommScope Technologies LLC Module amélioré pour monopôle de communication cellulaire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631152C2 (de) * 1976-07-10 1985-08-08 Volkswagenwerk Ag, 3180 Wolfsburg Flügelzellen-Vakuumpumpe
DE4143466C2 (de) * 1991-03-20 1997-05-15 Rexroth Mannesmann Gmbh Steuerscheibe für Flügelzellenpumpe
DE10160036A1 (de) * 2000-12-13 2002-09-12 Luk Fahrzeug Hydraulik Flügelzellenmaschine
JP2008128116A (ja) * 2006-11-21 2008-06-05 Matsushita Electric Works Ltd ベーンポンプ
DE102007039172B4 (de) * 2007-06-05 2024-02-15 Robert Bosch Gmbh Flügelzellenpumpe
DE102008036327A1 (de) 2008-07-28 2010-02-04 Joma-Hydromechanic Gmbh Flügelzellenpumpe

Also Published As

Publication number Publication date
CN103261692B (zh) 2015-09-09
CN103261692A (zh) 2013-08-21
WO2012022595A3 (fr) 2013-04-11
WO2012022595A2 (fr) 2012-02-23
US9011125B2 (en) 2015-04-21
DE102010039344A1 (de) 2012-02-16
US20130216419A1 (en) 2013-08-22
EP2606235A2 (fr) 2013-06-26

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