WO2010012621A2 - Pompe à palettes - Google Patents

Pompe à palettes Download PDF

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Publication number
WO2010012621A2
WO2010012621A2 PCT/EP2009/059288 EP2009059288W WO2010012621A2 WO 2010012621 A2 WO2010012621 A2 WO 2010012621A2 EP 2009059288 W EP2009059288 W EP 2009059288W WO 2010012621 A2 WO2010012621 A2 WO 2010012621A2
Authority
WO
WIPO (PCT)
Prior art keywords
working space
vane pump
plane
peripheral surface
inner peripheral
Prior art date
Application number
PCT/EP2009/059288
Other languages
German (de)
English (en)
Other versions
WO2010012621A3 (fr
Inventor
Willi Schneider
Tim Lohmann
Original Assignee
Joma-Polytec Kunststofftechnik 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 Kunststofftechnik Gmbh filed Critical Joma-Polytec Kunststofftechnik Gmbh
Publication of WO2010012621A2 publication Critical patent/WO2010012621A2/fr
Publication of WO2010012621A3 publication Critical patent/WO2010012621A3/fr

Links

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
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
    • 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
    • F04C2/40—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 group F04C2/08 or F04C2/22 and having a hinged member
    • F04C2/44—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 group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the inner member
    • 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

Definitions

  • the invention relates to a vane pump with a housing, a housing located in the cup-shaped working space with an inner peripheral surface, an eccentrically mounted in the working space, driven rotor having radially extending slots in which radially displaceable wings are mounted, each wing pivotally is mounted on a sliding block, which is guided in a guideway which extends within the pot-shaped working space.
  • Such vane pumps are well known. They have a housing in which a working space is defined, in which in turn a rotor is rotatably mounted eccentrically.
  • the rotor has radial slots, in each of which a wing is arranged radially displaceable.
  • the wings touch the inner peripheral surface of the working space and thereby form the suction and pressure chambers. Due to the eccentric mounting of the rotor, although the wings extend radially to the axis of rotation of the rotor, but they take an outside of the plane defined by the axis of rotation of the rotor and the central axis of the working space an angular position with respect to the inner peripheral surface of the working space.
  • the wings are perpendicular or orthogonal to the inner circumferential surface only in the above-mentioned plane, outside this plane they make an angle to the orthogonal one. This results in the problem that the wings, if they take an angle to the orthogonal of the inner peripheral surface, slightly lift off from the inner peripheral surface. This results in greater volumetric losses, since already compressed air from the pressure chambers flows back into the subsequent suction chambers.
  • the invention has for its object to provide a vane pump, in which the volumetric losses are lower.
  • the gap between the wing tip and the inner peripheral surface is closed. An overflow of air from the pressure chambers in the suction chambers is thereby avoided.
  • the change of the diameter is continuous and starts or ends in the plane of the largest diameter, that is, in the plane defined by the axis of rotation of the rotor and the central axis of the working space or in the plane of eccentricity.
  • the diameter of the first lens in one embodiment of the invention, the diameter of the first lens
  • the change in diameter is chosen so that the wing tip is permanently applied to the inner peripheral surface of the working space.
  • a vane pump has a high efficiency, low power losses and also a low wear, since the wing tip is not placed twice on each inner circulation surface on each revolution.
  • the guideway has a circular shape.
  • This embodiment has the significant advantage that the sliding block can be formed in a circular arc, so that the sliding blocks are not subject to permanently changing accelerations due to changes of direction in the guide track.
  • a circular arc-shaped guideway and semi-circular arc sliding blocks are easy to produce.
  • the guideway is formed as a groove.
  • the sliding block may be adapted in its cross section to the cross section of the groove, so that the pressure chambers are sealed to each other.
  • the sliding block is advantageously made of steel or ceramic.
  • the bearing of the wing in the sliding block is preferably a pivot bearing in which a pin anchored in the wing is received by a receiving opening in the sliding block.
  • FIG. 1 shows a cross section through a vane pump.
  • FIG. 2 shows a section M-II according to FIG. 1;
  • FIG. 3 shows a section III-III according to FIG. 1;
  • FIG. 4 is a perspective view of the vane pump without the housing defining the working space
  • Fig. 5 is a perspective view of the vane pump without cover.
  • Figure 1 shows a generally designated 10 vane pump having a working chamber 12 forming a housing 14 which is closed by a bottom 16 and a lid 18 ( Figures 2 and 3).
  • a generally designated 20 rotor whose axis of rotation 22 is eccentric to the axis 24 of the working space 12.
  • the eccentricity is denoted by ⁇ .
  • rotor 20 In the rotor 20 are radially extending slots 26, in which wings 28 are mounted radially displaceable. The radially outer end of each wing 28, so the wing tip, is located on the inner peripheral surface 30 of the working space 12th at.
  • each guideway 34 formed as a groove 32 in which sliding blocks 36 are mounted.
  • the wings 28 are articulated by a mounted in the wing 28 pin 38 or bearing pin engages in a provided in the sliding block 36 receiving opening 40.
  • the sliding block 36 may also be provided with a pin which engages in a receiving opening provided in the wing 28.
  • the guideway 34 is circular and is coaxial with the central axis 24 of the working space 12.
  • the intake manifold 42 can be seen, which protrudes from the bottom 16 of the vane pump 10. Air is directed into a crescent-shaped inlet opening 44 via this intake pipe 42 so that it enters the working space 12.
  • the groove-shaped guideways 34 both in the bottom 16 and in the lid 18, in which the sliding blocks 36 rotate in a circle.
  • the rotor 20 is driven at its axial end 46, which is formed for example as a square, via a suitable drive, for example an electric motor or the like.
  • a sickle-shaped outlet opening 48 can be seen, through which the compressed fluid, so the compressed air, is ejected.
  • the working space 12 is sealed from the environment by means of seals 50, for example O-rings, which are provided between the base 16 and the housing 14 and between the housing 14 and the cover 18.
  • the wing 28 Due to this tilting position of the wing 28, the wing 28 would slightly lift off from the ideal circular orbit 58. The resulting gap 60 would cause volumetric losses due to overflow of compressed gas from the pressure space in front of the wing 28 into the suction space after the wing 28. Therefore, the diameter of the inner circumferential surface 30 outside the plane 52 is shortened or reduced so that it compensates the distance 60. The diameter of the inner peripheral surface 30 outside the plane 52 is thus shortened by the distance 60, which is caused by the inclined position of the blade 28 with respect to the orthogonal 56, on both sides, that is, both in the suction and in the pressure region. In the area of the largest diameter, that is, in the plane 52, the wing 28 abuts the ideal, circular circulation path 58. The actual orbit corresponds to the inner peripheral surface 30, which deviates outside of the plane 52 to compensate for the distance 60 from the ideal, circular circulation path 58 by material addition.
  • the vane pump 10 according to the invention has significantly lower volumetric losses and can be operated without sealant, in particular oil-free.

Landscapes

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

Abstract

L'invention concerne une pompe à palettes avec un corps, avec une chambre de travail en forme de pot se trouvant dans le corps et possédant une surface périphérique intérieure, avec un rotor entraîné, monté excentrique dans la chambre de travail, qui possède des fentes orientées radialement dans lesquelles sont montées des palettes pouvant se déplacer radialement. Chaque palette est montée pivotante sur un coulisseau qui est guidé dans une glissière qui s'étend à l'intérieur de la chambre de travail en forme de pot. Le diamètre de la surface périphérique intérieure est plus grand dans le plan formé par l'axe de rotation et l'axe de la chambre de travail qu'en dehors de ce plan.
PCT/EP2009/059288 2008-07-28 2009-07-20 Pompe à palettes WO2010012621A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008036327.8 2008-07-28
DE200810036327 DE102008036327A1 (de) 2008-07-28 2008-07-28 Flügelzellenpumpe

Publications (2)

Publication Number Publication Date
WO2010012621A2 true WO2010012621A2 (fr) 2010-02-04
WO2010012621A3 WO2010012621A3 (fr) 2010-05-06

Family

ID=41165479

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/059288 WO2010012621A2 (fr) 2008-07-28 2009-07-20 Pompe à palettes

Country Status (2)

Country Link
DE (1) DE102008036327A1 (fr)
WO (1) WO2010012621A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010022677B4 (de) 2010-06-04 2016-06-30 Nidec Gpm Gmbh Flügelzellenpumpe
DE102010039344A1 (de) 2010-08-16 2012-02-16 Joma-Polytec Gmbh Flügelzellenpumpe
CN102536809B (zh) * 2011-12-12 2014-12-03 马燕翔 无定子磨损的叶片泵及液压马达和耙吸式泥浆泵
CN102536801B (zh) * 2011-12-12 2015-04-22 马燕翔 无定子磨损的滑片泵
DE102017117988A1 (de) * 2017-08-08 2019-02-14 Kameliya Filipova Ganeva Pneumatische oder hydraulische Vorrichtung
KR102370499B1 (ko) 2020-03-25 2022-03-04 엘지전자 주식회사 로터리 압축기
KR102370523B1 (ko) 2020-03-25 2022-03-04 엘지전자 주식회사 로터리 압축기

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781729A (en) * 1955-12-22 1957-02-19 Chester W Johnson Fluid pump
US4299097A (en) * 1980-06-16 1981-11-10 The Rovac Corporation Vane type compressor employing elliptical-circular profile
FR2507256A1 (fr) * 1981-06-08 1982-12-10 Rovac Corp Compresseur rotatif
US5160252A (en) * 1990-06-07 1992-11-03 Edwards Thomas C Rotary vane machines with anti-friction positive bi-axial vane motion controls
WO1994009260A1 (fr) * 1992-10-15 1994-04-28 Fanja Ltd. Machine a aubes coulissantes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087183A (en) * 1990-06-07 1992-02-11 Edwards Thomas C Rotary vane machine with simplified anti-friction positive bi-axial vane motion control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781729A (en) * 1955-12-22 1957-02-19 Chester W Johnson Fluid pump
US4299097A (en) * 1980-06-16 1981-11-10 The Rovac Corporation Vane type compressor employing elliptical-circular profile
FR2507256A1 (fr) * 1981-06-08 1982-12-10 Rovac Corp Compresseur rotatif
US5160252A (en) * 1990-06-07 1992-11-03 Edwards Thomas C Rotary vane machines with anti-friction positive bi-axial vane motion controls
WO1994009260A1 (fr) * 1992-10-15 1994-04-28 Fanja Ltd. Machine a aubes coulissantes

Also Published As

Publication number Publication date
DE102008036327A1 (de) 2010-02-04
WO2010012621A3 (fr) 2010-05-06

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