EP1597459B1 - Pumpenkombination - Google Patents

Pumpenkombination Download PDF

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Publication number
EP1597459B1
EP1597459B1 EP04710336A EP04710336A EP1597459B1 EP 1597459 B1 EP1597459 B1 EP 1597459B1 EP 04710336 A EP04710336 A EP 04710336A EP 04710336 A EP04710336 A EP 04710336A EP 1597459 B1 EP1597459 B1 EP 1597459B1
Authority
EP
European Patent Office
Prior art keywords
pump
vane
oil
combination according
suction
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
EP04710336A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1597459A1 (de
Inventor
Heiko Schulz-Andres
Christoph DÜRR
Dirk Kamarys
Petra Schmalt
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.)
Magna Powertrain Hueckeswagen GmbH
Original Assignee
Ixetic Hueckeswagen 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 Hueckeswagen GmbH filed Critical Ixetic Hueckeswagen GmbH
Publication of EP1597459A1 publication Critical patent/EP1597459A1/de
Application granted granted Critical
Publication of EP1597459B1 publication Critical patent/EP1597459B1/de
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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle

Definitions

  • the invention relates to a pump combination, which has a first pump and at least one second pump, wherein the first pump is used to deliver lubricating oil of an internal combustion engine.
  • Such pump combinations are known.
  • a pressure pump for oil delivery of the lubricating oil of the internal combustion engine as external gear pump in conjunction with three other suction pumps.
  • These suction pumps are also designed as gear pumps.
  • the disadvantage of this concept is that the individual pump stages are installed axially one behind the other and thus still a pressure-tight separation must be carried out between each pump stage. As a result, this system builds very large axially.
  • a pump combination having a first pump and at least one second pump, wherein the first pump may be a vane pump for delivering lubricating oil of an internal combustion engine, that operates as a pressure stage, and wherein the first pump additionally an oil supply at least the second Pump provides, according to the invention, the second pump is represented by a monoflip pump, for example in vacuum pump type, the lubricating oil supply for lubricating a clutch and the rotation group and for sealing the sealing gaps is provided by the first pump.
  • a monoerielzellenpumpe has the advantage that the ratio of space to usable space is very positive. Since this pump principle promotes sufficiently well even at very low speeds, a reduction in pump size compared to Conventional gear pumps for the application "suction" possible. As a result, the friction loss and the air-oil flow in the oil sump space can be reduced. Also, such a pump design for the promotion of an air-oil mixture or only of air is particularly well suited.
  • the second pump is represented by a two-stroke vane pump whose under-wing pressure supply is provided by the first pump.
  • a pump combination in which the underfoil pressure supply of the second pump is provided by the underfoil pressure supply of the first pump. This is particularly possible if the delivery volume of the first pump is much larger than the delivery volume of the second pump. Attaching the underfoil pressure supply of the smaller second pump to the underfloor supply of the larger first pump is thus easily possible in the inner region of the vane pump without great manufacturing effort.
  • a pump combination which has a first pump as a double-stroke vane pump and a second pump as a double-stroke vane pump and a third pump as a monoerielzellenpumpe and the oil supply of the second and third pump is represented by the first pump.
  • the first pump is a so-called pressure level and can promote oil under pressure, they can take over the under wing supply or the lubricating oil supply of the other two pumps, which operate for example as suction stages and thus can not build up pressure and thus not enough pressure for its own oil pressure supply ,
  • a pump combination according to the invention is characterized in that the second two-stroke vane pump as a suction pump, for example, for the lubricating oil of Turbochargers, loaders or compressors is used.
  • the second two-stroke vane pump as a suction pump, for example, for the lubricating oil of Turbochargers, loaders or compressors is used.
  • Preference is given to a pump combination in which the two suction kidneys of the second vane pump are connected to two independent suction regions separated from each other and each suction region sucks, for example, the lubricating oil of a turbocharger, supercharger or compressor.
  • the great advantage of the two separate Saugnieren by the design of the double-stroke vane pump is that here practically two pumps in a small axial space can be displayed, which also do without axial partitions, as would be the case with two gear pump suction.
  • the advantage of low axial space depth is particularly the advantage of fewer parts, less installation effort and less cost to emphasize.
  • a pump combination is preferred in which the housing of the second vane pump can be made of plastic. This is possible because this working as a suction stage second vane pump undergoes only a slight underpressure and is not burdened by excess pressure, as it promotes practically unpressurized in the oil pan.
  • a pump combination is preferred in which the second vane pump instead of an underfoil pressure supply can have a forced guidance under the wings by a contoured ring. This has the advantage that the contour ring extends the wings in the suction even at low speeds and therefore immediately at startup, a suction of the oil is possible. At higher speeds then take over the centrifugal forces the extension of the wings in the suction area.
  • the monoflip pump serves as a suction pump / bilge pump for a part of the oil pan, the z. B. by the motor vehicle
  • the suction pump sucks air therefrom (from the oil sump) or an oil-air mixture or, if no more oil-air mixture is present, air and in the main oil sump of the oil sump of the internal combustion engine in the region of ⁇ lansaugstelle the first pump promotes.
  • the need for oil suction from more remote areas of the oil pan to the intake point of the main oil pump may be necessary.
  • a pump combination is preferred in which the monoflip pump has extended opening cross sections (compared to a conventional vacuum pump) without check valves. This has the advantage that this monoflip pump can be operated without suction even with suction with complete oil filling without high pressure peaks and thus destruction of the pump can be avoided.
  • a pump combination is preferred in which the housing of the monoflip cell pump is made of plastic. This is possible because the working as suction pump experiences little negative pressure and on the pressure side low pressure peaks. As a result, housing with larger tolerances are possible, which require no post-processing.
  • a pump combination is preferred in which the monoflip pump has lubrication pockets in the rotor bearing for interval lubrication of the sealing gaps.
  • a pump combination according to the invention was characterized in that all three pumps are driven by a common shaft.
  • a pump combination is preferred in which the first pump, so the vane pump for the pressure stage, a two-stroke vane pump and a pressure control valve and a temperature switching valve, which switches on temperature increase a second tide of the vane pump from the pressureless circulation in the pressure circuit has. Also preferred is a pump combination in which the first pump has a controllable stroke volume adjustment.
  • FIG. 1 shows a cross section through the pump combination with 3 pumps.
  • the rotor 5 of the first vane pump 7 is arranged in the shaft region 3. Furthermore, a section through the cam ring 9 can be seen.
  • the vane pump 7 is housed in a housing 11 which is closed by a cover 13.
  • the end cap 13 additionally applies as a receiving housing for the second vane pump 15, which is much smaller and narrower than the first vane pump 7.
  • the rotor 17 of the second vane pump 15 is disposed on the shaft portion 19 of the shaft 1 and is also driven by the shaft 1.
  • a section through the lifting ring 21 of the second vane pump 15 can also be seen.
  • a coupling part 23 can be seen on the shaft section 19 of the shaft 1, which engages in a rotor 25 of the monoflip cell pump 27.
  • the monoerielzellenpumpe 27 is flanged by a housing flange 29 on the second vane pump 15 and is characterized by a Housing part 31 completed to the outside. Within the rotor 25, the monoeriel 33 can be seen in cross-section.
  • the first pump forms the main oil feed pump for an internal combustion engine of a motor vehicle and sucks from the oil sump lubricating oil, which is supplied under pressure to the lubrication points of the engine.
  • the second, much smaller vane pump 15 serves as a suction pump for existing in the motor vehicle turbocharger, supercharger or compressors and sucks from there the lubricating oil back into the oil pan of the engine.
  • the third pump, the monoerielzellenpumpe 27, serves as a suction pump for remote areas of the oil pan, from which under certain conditions, such. B. in an inclined position of the motor vehicle in the field, the oil can not pass through its own oil reflux to the intake for the main oil pump 7.
  • the Monoerielzellenpumpe 27 is due to design particularly suitable to promote both oil-air mixtures and clean air, which occurs as soon as the corresponding extraction of the remote oil pan areas is completed.
  • a double pump is arranged in principle in this axially very narrow region, in which the first tide a first turbocharger and the second tide can dispose of a second turbocharger from the lubricating oil.
  • the first suction region of the vane pump 15 is connected to the first turbocharger and the second suction region is connected to the second turbocharger.
  • the oil flows of both suction areas are then on the pressure kidneys of Vane pump 15 is returned to a common pressure range and then into the oil pan, the pressure range itself remains depressurized in principle, as opposed to this oil flow no special pressure-generating resistors.
  • This pump combination thus contains according to the invention in an ideal way for the corresponding task areas particularly selected pump types and is also characterized by a small axial space, which is particularly favorable for the installation situation in a motor vehicle engine oil pan.
  • Figure 2 shows a plan view of the pump housing 11 with a view of the shaft protruding from the housing 1.
  • the housing 11 additionally has installation spaces 35 and 37 for a pressure regulating valve and a temperature switching valve.
  • the temperature switching valve has the function to switch in the two-stroke main pump 7 one of the two floods at low oil temperatures in pressureless circulation and at high oil temperatures when the engine has a high lubricating oil demand, the second flood to the first flood, i. to add to the print area.
  • the pressure control valve regulates the maximum permissible oil pressure in the lubricating oil system.
  • the housing 11 also has flange surfaces 39, which provide the transition to the oil sump or other engine areas and the lubricating oil system and thereby also have the corresponding passages of the oil passages.
  • FIG. 3 shows a further section through the pump combination according to the invention.
  • the same components as in Figure 1 are provided with the same reference numerals and should not be explained again to avoid repetition.
  • the oil supply of the second pump 15 and the third pump 27 can be seen by the first pump 7.
  • the housing part 13 which closes the housing 11 of the pump 7 and at the same time represents the housing for the second pump 15, an oil passage 41 can be seen, which leads from the underfloor oil supply of the pump 7 to the underfloor oil supply of the pump 15.
  • the Function of hydraulic pressure supplies under the wings is also known and will therefore not be discussed further here.
  • the underfloor pump of the pump 7 is generally supplied with the pressure oil of the pump 7 and thus also supplies pressure oil via the line 41 to the pump 15, which serves as a suction pump for the turbocharger and therefore can not build up a remarkable oil pressure. Therefore, this pump could not be pressed out of the slots by its own oil pressure the wings accordingly.
  • the oil supply continues via the underfloor pump of the second pump 15 by means of an oil supply channel 43 to the coupling 23 of the monoflip cell pump 27.
  • the lubricating oil is used to seal the column in pure air promotion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Eye Examination Apparatus (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
EP04710336A 2003-02-14 2004-02-12 Pumpenkombination Expired - Lifetime EP1597459B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10306164 2003-02-14
DE10306164 2003-02-14
PCT/DE2004/000250 WO2004072444A1 (de) 2003-02-14 2004-02-12 Pumpenkombination

Publications (2)

Publication Number Publication Date
EP1597459A1 EP1597459A1 (de) 2005-11-23
EP1597459B1 true EP1597459B1 (de) 2008-01-02

Family

ID=32863810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04710336A Expired - Lifetime EP1597459B1 (de) 2003-02-14 2004-02-12 Pumpenkombination

Country Status (6)

Country Link
US (1) US20060213477A1 (uk)
EP (1) EP1597459B1 (uk)
JP (1) JP2006517634A (uk)
AT (1) ATE382778T1 (uk)
DE (1) DE502004005825D1 (uk)
WO (1) WO2004072444A1 (uk)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016210821B4 (de) 2015-06-26 2023-08-03 Gm Global Technology Operations, Llc Flügelzellenpumpe mit zwei Rotoren

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006029553A1 (de) * 2006-06-26 2007-12-27 Pierburg Gmbh Ölpumpen- und Vakuumpumpenmodul
WO2008092571A1 (de) * 2007-02-01 2008-08-07 Ixetic Bad Homburg Gmbh Zellenpumpe zur förderung eines fluids
JP5232842B2 (ja) * 2010-09-16 2013-07-10 株式会社山田製作所 可変流量オイルポンプ
US8961148B2 (en) 2011-07-19 2015-02-24 Douglas G. Hunter Unified variable displacement oil pump and vacuum pump
JP6059465B2 (ja) 2012-08-14 2017-01-11 株式会社マーレ フィルターシステムズ 電動デュアルポンプ
DE102013201972A1 (de) * 2013-02-07 2014-08-07 Zf Lenksysteme Gmbh Verdrängerpumpe mit variablem fördervolumen
US20140321966A1 (en) * 2013-04-25 2014-10-30 Gm Global Technology Operations, Llc Packaged vacuum pump and oil pump, and system and method thereof
GB2535187A (en) * 2015-02-11 2016-08-17 Flybrid Automotive Ltd Vacuum pump system
EP3574226B1 (en) 2017-01-30 2023-08-02 Litens Automotive Partnership Clutched vacuum pump system
DE102018105142A1 (de) * 2018-03-06 2019-09-12 Schwäbische Hüttenwerke Automotive GmbH Dichtelement Vakuumpumpe
DE102018126550B4 (de) * 2018-10-24 2024-02-29 Valeo Powertrain Gmbh Hydraulischer Getriebeaktuator
DE102022109970A1 (de) * 2022-04-26 2023-10-26 Audi Aktiengesellschaft Getriebemotor für ein Kraftfahrzeug und Kraftfahrzeug mit einem Getriebemotor

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US2935023A (en) * 1957-09-23 1960-05-03 Gen Motors Corp Steering and air compressor lubrication system
DE2833167A1 (de) * 1978-07-28 1980-02-14 Barmag Barmer Maschf Baueinheit, bestehend aus einer oelpumpe zur oelumlaufschmierung einer brennkraftmaschine und einer vakuumpumpe zur erzeugung eines vakuums fuer die bremskraftverstaerkung in kraftfahrzeugen
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DE3506433C2 (de) * 1984-03-07 1994-04-14 Barmag Barmer Maschf Baueinheit aus einer Flügelzellen-Vakuumpumpe und einer Druckerhöhungspumpe
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016210821B4 (de) 2015-06-26 2023-08-03 Gm Global Technology Operations, Llc Flügelzellenpumpe mit zwei Rotoren

Also Published As

Publication number Publication date
DE502004005825D1 (de) 2008-02-14
EP1597459A1 (de) 2005-11-23
JP2006517634A (ja) 2006-07-27
US20060213477A1 (en) 2006-09-28
ATE382778T1 (de) 2008-01-15
WO2004072444A1 (de) 2004-08-26

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