EP1642032B1 - Pompe - Google Patents

Pompe Download PDF

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Publication number
EP1642032B1
EP1642032B1 EP04738715A EP04738715A EP1642032B1 EP 1642032 B1 EP1642032 B1 EP 1642032B1 EP 04738715 A EP04738715 A EP 04738715A EP 04738715 A EP04738715 A EP 04738715A EP 1642032 B1 EP1642032 B1 EP 1642032B1
Authority
EP
European Patent Office
Prior art keywords
pressure
reniform
pump
cross
elements
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 - Lifetime
Application number
EP04738715A
Other languages
German (de)
English (en)
Other versions
EP1642032A1 (fr
Inventor
Ivo Agner
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.)
ixetic Bad Homburg GmbH
Original Assignee
ixetic Bad Homburg 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 ixetic Bad Homburg GmbH filed Critical ixetic Bad Homburg GmbH
Publication of EP1642032A1 publication Critical patent/EP1642032A1/fr
Application granted granted Critical
Publication of EP1642032B1 publication Critical patent/EP1642032B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses
    • 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
    • F04C2250/10—Geometry of the inlet or outlet
    • F04C2250/102—Geometry of the inlet or outlet of the outlet

Definitions

  • the invention relates to a pump, such as a vane pump or roller-cell pump, in particular for transmission oil for automatic transmission, with a Hubkonturring, with a rotor with radial slots, in which wings or rollers are arranged radially displaceable, with side plates or housing side walls, which axially bound the rotation group laterally, wherein in the side plates or housing side walls in the printing area ejection openings, so-called pressure kidneys are arranged.
  • a pump is eg from the US-A-2 291 856 known.
  • Transmission pumps for automatic transmissions usually work with foamed gear oil and have a suction filter. Due to the undissolved air in the oil, air accumulation in the filter can occur. Here are many small to large bubbles together. If now such a bubble sucked in, it comes to crackling noises.
  • the air bubble causes, for example, in a vane pump, a large part of the cell is filled with air and in the context of over pressure equalizing notches or intermediate capacities (see DE 10027990 ), which are arranged in the so-called Vorkompressions Scheme controlled pressure equalization process, the time is insufficient to fill the cell with oil.
  • the pressure equalization process is now completed relatively abruptly when opening the large pressure kidneys of the standard pumps. This impact creates very high pressure peaks, which are acoustically reflected in the crackling noise.
  • the cavitation vacuole is directly comparable in effect to a large bubble.
  • a pump such as vane pump or roller-cell pump, in particular for transmission oil for automatic transmission, with a Hubkonturring, with a rotor with radial slots, in which wings are arranged radially displaceable, with side plates or housing side walls, which axially bound the rotation group laterally, wherein in the side plates or housing side walls in the printing area ejection openings, so-called Drucknieren, are arranged, wherein the cross-sectional areas of both pressure kidneys of a printing area are unequal size, that is arranged asymmetrically.
  • a pump is preferred in which the cross-sectional area of the pressure kidney of this pressure range, which is connected to the pressure output, is greater than z.
  • a pump is further preferred in which the area ratio of the pressure kidney of a pressure area connected to the pressure outlet to the pressure level of the same pressure area not connected to the pressure outlet is less than or equal to 70 to 30 when the pressure levels are above one Rotation angle of 20 ° are open.
  • a pump according to the invention is characterized in that the cross-sectional areas of the (gently opening) pressure kidneys are produced by covering the pressure kidney edges of the side plates with the stroke ring contour.
  • a pump is preferred in which the cross-sectional areas of the (gently opening) pressure kidneys are created by covering the pressure kidney edges of the side plates with the rotor. Furthermore, a pump is preferred in which the cross-sectional areas of the (gently opening) pressure kidneys are produced by creating continuously expanding pressure kidneys on the side plates or side walls or on the contour ring.
  • FIG. 1 shows in supervision a rotation group with much smaller print kidneys from both sides.
  • a rotor 3 is rotatably arranged.
  • the rotor 3 has a plurality of radially displaceable vanes 5, which slide in vane slots 7 in the rotor.
  • the direction of rotation of the rotor for the two views is indicated in each case by a direction of rotation arrow 9.
  • FIG. 1b z. B. resulting in the direction of rotation 9 cells enlarging in the area 11, which can suck 12 oil from the existing there suction kidney.
  • a pressure equalization notch 17 is arranged in the pre-compression area, which already allows a certain precompression in the great circle area, before the cross-sectional area 13 of a pressure kidney of a pressure range (a tide) of the pump, based on one and the same cell, ie within the area of a cell, is opened to the outlet.
  • the pressure kidneys begin there or a little later, where the leading wing of the considered cell leaves the precompression area (great circle area) with its opening edge.
  • the position of the pressure kidneys and thus the ejection area can be advanced in the direction of rotation with respect to a standard pump.
  • the discharge area can be formed in the Hubkonturring (1) by a parabolic contour function. The general function of such a vane pump with its suction and ejection operations is known.
  • FIG. 1a the other side of the rotation group is displayed.
  • the curve of the derivative of the cell volume formed between two vanes, the rotor, the ring and the plane surfaces of the side plates is represented by the angle of rotation over the angle of rotation, with respect to the trailing wing.
  • the Curve of the region 33 for the Vorkompressionskerbe 17 and the region 35, where the reduced pressure kidney is opened shown schematically.
  • the curve 20 thus represents the derivative of the cell volume according to the angle of rotation, plotted against the angle of rotation.
  • the area 22 of the curve 20 thus represents the above-mentioned function in the intake of the vane pump. It extends to the point 24, and there is the function in the Vorkompressions Scheme 26 via.
  • the pre-compression region 26 is arranged in the so-called large-circle region of the stroke contour.
  • the function from the precompression area then merges into the discharge area 30 of the vane pump. From this point 38 the connection of the cell with the pressure kidney is made up to the point 32.
  • the discharge area 30 extends to the point 32. Since this is a double-stroke, (double-flow) pump, the stroke contour repeats and thus also the above mentioned function.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Eye Examination Apparatus (AREA)
  • Fluid-Driven Valves (AREA)

Claims (6)

  1. Pompe, telle que pompe à palettes ou pompe à rouleaux, en particulier pour l'huile pour des transmissions automatiques, comportant une couronne à contour de levage (1), comportant un rotor (3) avec des fentes radiales (7), dans lesquelles sont disposés de manière mobile radialement des palettes (5) ou des rouleaux, comportant des plaques latérales ou parois latérales de carter, qui délimitent latéralement dans la direction axiale le groupe de rotation, sachant que les orifices de refoulement, à savoir des orifices de refoulement réniformes, sont disposés dans les plaques latérales ou les parois latérales du carter dans la zone de refoulement de la pompe, caractérisée en ce que les surfaces de la section (13) des deux orifices de refoulement réniformes d'une zone de refoulement n'ont pas la même dimension, elles sont donc disposées de manière non symétrique.
  2. Pompe selon la revendication 1, caractérisée en ce que la surface de la section (13) de l'orifice de refoulement réniforme d'une zone de refoulement, qui est reliée à la sortie de pression, est plus grande que la surface de la section (13) de l'orifice de refoulement réniforme de la zone de refoulement qui n'est pas reliée à la sortie de pression et constitue donc une interface aveugle sans orifice de passage.
  3. Pompe selon la revendication 1 ou 2, caractérisée en ce que le rapport entre la surface de l'orifice de refoulement réniforme d'une zone de refoulement, qui est reliée à la sortie de pression, et la surface de l'orifice de refoulement réniforme de la zone de refoulement qui n'est pas reliée à la sortie de pression (interface aveugle), est inférieur ou égal à 70 sur 30, lorsque les orifices de refoulement réniformes sont ouverts selon un angle de rotation de 20°.
  4. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que les surfaces de la section (13) des orifices de refoulement réniformes d'une zone de refoulement sont générées par le recouvrement (15) des bords des orifices réniformes dans les plaques latérales par la couronne à contour de levage (1).
  5. Pompe selon l'une quelconque des revendications précédentes, caractérisé en ce que les surfaces de la section (13) des orifices de refoulement réniformes d'une zone de refoulement sont générées par le recouvrement des bords des orifices réniformes dans les plaques latérales par le rotor (3).
  6. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que les surfaces de la section (13) des orifices de refoulement réniformes sont générées par la formation d'orifices de refoulement réniformes s'élargissant en permanence sur les plaques latérales ou les parois latérales ou sur la couronne à contour de levage (1).
EP04738715A 2003-06-30 2004-06-18 Pompe Expired - Lifetime EP1642032B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10329288 2003-06-30
PCT/DE2004/001264 WO2005001291A1 (fr) 2003-06-30 2004-06-18 Pompe

Publications (2)

Publication Number Publication Date
EP1642032A1 EP1642032A1 (fr) 2006-04-05
EP1642032B1 true EP1642032B1 (fr) 2010-10-06

Family

ID=33521182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04738715A Expired - Lifetime EP1642032B1 (fr) 2003-06-30 2004-06-18 Pompe

Country Status (4)

Country Link
EP (1) EP1642032B1 (fr)
AT (1) ATE483913T1 (fr)
DE (2) DE502004011746D1 (fr)
WO (1) WO2005001291A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015201961A1 (de) 2015-02-04 2016-08-04 Volkswagen Aktiengesellschaft Verfahren zum Betrieb einer Verdrängerpumpe sowie eine hierfür bestimmte Verdrängerpumpe
DE102016205687A1 (de) * 2016-04-06 2017-10-12 Zf Friedrichshafen Ag Flügelzellenpumpe
DE102016205686A1 (de) * 2016-04-06 2017-10-12 Zf Friedrichshafen Ag Flügelzellenpumpe
DE102016111770A1 (de) * 2016-06-28 2017-12-28 Robert Bosch Gmbh Verdrängerpumpe, Verfahren zum Betreiben einer Verdrängerpumpe und Getriebe für ein Kraftfahrzeug
DE102016111772A1 (de) * 2016-06-28 2017-12-28 Robert Bosch Automotive Steering Gmbh Verdrängerpumpe, Verfahren zum Betreiben einer Verdrängerpumpe und Getriebe für ein Kraftfahrzeug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291856A (en) * 1938-12-21 1942-08-04 Wood John Mfg Co Inc Rotary pump
JPS61108884A (ja) * 1984-10-31 1986-05-27 Aisin Seiki Co Ltd トロコイド型オイルポンプ
DE19626206A1 (de) * 1996-06-29 1998-01-08 Luk Fahrzeug Hydraulik Flügelzellenpumpe
JPH1089266A (ja) * 1996-09-17 1998-04-07 Toyoda Mach Works Ltd ベーンポンプ
DE10027990A1 (de) 2000-06-08 2001-12-20 Luk Fahrzeug Hydraulik Pumpe

Also Published As

Publication number Publication date
DE102004030473B4 (de) 2016-01-14
DE502004011746D1 (de) 2010-11-18
WO2005001291A1 (fr) 2005-01-06
DE102004030473A1 (de) 2005-01-20
EP1642032A1 (fr) 2006-04-05
ATE483913T1 (de) 2010-10-15

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