EP2459880B1 - Zahnradpumpe - Google Patents

Zahnradpumpe Download PDF

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Publication number
EP2459880B1
EP2459880B1 EP10722710.0A EP10722710A EP2459880B1 EP 2459880 B1 EP2459880 B1 EP 2459880B1 EP 10722710 A EP10722710 A EP 10722710A EP 2459880 B1 EP2459880 B1 EP 2459880B1
Authority
EP
European Patent Office
Prior art keywords
gear
ring
gear pump
annular
stator
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.)
Not-in-force
Application number
EP10722710.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2459880A2 (de
Inventor
Stanislaw Bodzak
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2459880A2 publication Critical patent/EP2459880A2/de
Application granted granted Critical
Publication of EP2459880B1 publication Critical patent/EP2459880B1/de
Not-in-force 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/008—Prime movers
    • 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
    • F04C11/008—Enclosed motor pump units
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/22—Manufacture essentially without removing material by sintering

Definitions

  • the present invention relates to a gear pump according to the preamble of claim 1.
  • Gear pumps include, inter alia, internal gear and gerotor pumps in which a driving gear is eccentric in the internal toothing of a toothed ring.
  • Internal gear pumps which are particularly suitable for providing high pressures, are used to deliver fluids, such as for example, to deliver fuel to an internal combustion engine.
  • a delivery pump which is integrated in an electric motor.
  • the feed pump comprises a first gear and a second gear. Between the two gears, a delivery chamber is formed.
  • the second gear is stored in its center on a thorn.
  • the first gear is an external gear and forms the rotor, the second gear is an internal gear, which is entrained in the eccentric center of the first gear.
  • the first gear comprises glued permanent magnets, which are distributed over the circumference. External magnetic field generators generate a rotating, rotating field which causes direct motor following of the rotor.
  • EP 1 600 635 A2 An internal gear pump is described which has a pump section with an inner rotor formed on its outer periphery with teeth.
  • An outer rotor has teeth formed on its inner periphery. Both rotors are housed in a housing. The storage of the outer rotor formed as a toothed ring takes place here by means of specially shaped additional components.
  • a gear pump for conveying a fluid with a rotatably mounted on a journal externally toothed gear and an internally toothed ring are provided, which are for generating a conveying effect in meshing engagement, and which are arranged together with an electrically commutatable stator in a housing, wherein the Stator concentrically extends around the toothed ring around and cooperates with a magnetic ring for generating an electromotive force, wherein the magnetic ring with the toothed ring for generating the conveying action a rotational movement performs, wherein the toothed ring is supported by a sliding bearing.
  • the bearing of the toothed ring is provided by a ring-shaped portion which is formed at least on a surface opposite the toothed ring as a sliding bearing.
  • the ring-shaped section is pressed or glued into the housing.
  • the magnetic ring between the stator and the toothed ring is arranged.
  • the magnetic ring has no Gleitlageraufgabe.
  • the tasks of sliding bearing are advantageously taken over by other components of the internal gear pump and the toothed ring itself.
  • the magnetic ring and the toothed ring are rotatably connected to each other.
  • a driving torque is transmitted from the rotating electromagnetic field to the magnet ring and further to the ring gear of the internal gear pump or gerotor pump.
  • the magnetic ring itself does not take over storage function. This is advantageously taken over by other components, preferably by the toothed ring itself.
  • the toothed ring is made of a non-magnetic material. This achieves a magnetic decoupling between the individual components.
  • a second radial gap with a value of 0.1 to 0.5 mm is formed between the stator and the magnet ring.
  • Fig. 1 shows a section through an internal gear pump 1 according to the prior art.
  • the internal gear pump 1 comprises a pair of gears, which consists of an internally toothed ring gear 2 and an externally toothed gear 3.
  • the gear 3 is arranged eccentrically to the toothed ring 2 rotatably on a bearing journal 4. If the toothed ring 2 is set in a rotary motion, then meshes with the external teeth of the gear 3 in the internal toothing of the toothed ring 2 and generates a delivery volume flow of the fluid in which the toothing runs.
  • the gear pair of the toothed ring 2 and the gear 3 is arranged in a housing 5, wherein the bearing pin 4 is integrally formed or integrally with the housing 5.
  • the toothed ring 2 is also rotatably connected to a magnetic ring 6, wherein the magnetic ring 6 extends radially around the toothed ring 2.
  • the magnetic ring 6 runs in an inner side of a stator 7, which has an electric winding 8. If the electric winding 8 is commutated electrically by a controller, a circulating magnetic field is generated in the stator 7. Due to the rotating magnetic field of the magnet ring 6 is set in rotation, wherein due to the rotationally fixed connection of the magnet ring 6 with the toothed ring 2, the teeth consisting of the toothed ring 2 and the gear 3 is put into operation.
  • the magnetic ring 6 is slidably mounted on the stator 7.
  • the magnetic ring 6 is provided with a corresponding coating of a suitable sliding material. This embodiment is not suitable for the application of high discharge pressures and poorly lubricating liquids, such as gasoline or diesel.
  • connection cover 9 The open side of the housing 5 of the internal gear pump 1 is closed by means of a connection cover 9, wherein a sealing element 10 is provided for the fluid-tight sealing of the gaps between the connection cover 9 and the housing 5.
  • the sealing element 10 is designed as an O-ring and is arranged in a corresponding circumferential groove (not shown) within the connection cover 9.
  • Fig. 2 shows a section through an internal gear pump 1 according to an example.
  • the internal gear pump 1 shown here differs essentially from the in Fig. 1 shown internal gear pump 1 characterized in that not the magnetic ring 6 takes over the bearing function but the outer ring or the toothed ring 2 is supported by a plain bearing.
  • the magnetic ring 6 and the toothed ring 2 are either positively connected, or the connection is in the embodiment by z. B. bonding the two components together.
  • a drive torque is transmitted from a rotating electromagnetic field to the magnet ring 6 and further to the toothed ring 2 of the internal gear pump 1.
  • the gear 3 is made of non-magnetic Material produced.
  • annular formed portion 11 is provided, which is here formed integrally or integrally with the housing 5 and projects radially from an inner wall 14 of the housing 5.
  • the ring-shaped section 11 is formed on a toothed ring 2 opposite the first surface 15 as a sliding bearing 25.
  • a first radial gap 12 is present between a second surface 16 of the annular portion 11, which faces the magnetic ring 6, and the magnetic ring 6, .
  • Another second radial gap 13 is designed between the magnet ring 6 and the stator 7 to small values with the aim of achieving a good torque transmission and low hydraulic friction.
  • the width of the second radial gap 12, 13 is in a range of 0.1 to 0.5 mm.
  • Fig. 3 shows a section through an internal gear pump 1 according to an embodiment, which differs from the in Fig. 2 illustrated internal gear pump 1 differs in that in this embodiment, the annular portion 11 is not made integral with the housing 5 but is made as a separate component.
  • the ring-shaped portion 11 with bearing function is in the housing 5 and in a recess 17, which is provided in the inner wall 14 of the housing 5, pressed or glued.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP10722710.0A 2009-07-31 2010-06-08 Zahnradpumpe Not-in-force EP2459880B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910028154 DE102009028154A1 (de) 2009-07-31 2009-07-31 Zahnradpumpe
PCT/EP2010/057973 WO2011012364A2 (de) 2009-07-31 2010-06-08 Zahnradpumpe

Publications (2)

Publication Number Publication Date
EP2459880A2 EP2459880A2 (de) 2012-06-06
EP2459880B1 true EP2459880B1 (de) 2017-01-04

Family

ID=43402330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722710.0A Not-in-force EP2459880B1 (de) 2009-07-31 2010-06-08 Zahnradpumpe

Country Status (8)

Country Link
US (1) US8974207B2 (ru)
EP (1) EP2459880B1 (ru)
JP (1) JP5536885B2 (ru)
CN (1) CN102483058B (ru)
DE (1) DE102009028154A1 (ru)
IN (1) IN2012DN00753A (ru)
RU (1) RU2540346C2 (ru)
WO (1) WO2011012364A2 (ru)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2486622B1 (en) 2009-10-08 2014-07-23 Fluidic, Inc. Rechargeable metal-air cell with flow management system
BR112012032269B1 (pt) 2010-06-24 2020-01-07 Nantenergy, Inc. Método para operar célula eletroquímica e célula eletroquímica
CN202550031U (zh) 2010-09-16 2012-11-21 流体公司 具有渐进析氧电极/燃料电极的电化学电池系统
JP5908251B2 (ja) 2010-11-17 2016-04-26 フルイディック，インク．Ｆｌｕｉｄｉｃ，Ｉｎｃ． 階層型アノードのマルチモード充電
US8840385B2 (en) * 2011-03-03 2014-09-23 Ti Group Automotive Systems, L.L.C. Positive displacement fluid pump
WO2013127626A2 (de) 2012-02-27 2013-09-06 Ixetic Bad Homburg Gmbh Pumpenanordnung
KR102150609B1 (ko) * 2014-02-21 2020-09-01 엘지이노텍 주식회사 모터
EP3253968A1 (en) * 2015-02-06 2017-12-13 Robert Bosch GmbH Pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine
DE102015213387A1 (de) * 2015-07-16 2017-01-19 Robert Bosch Gmbh Rotationskolbenpumpe
JP6190938B1 (ja) * 2016-10-11 2017-08-30 大同機械製造株式会社 内転歯車ポンプ
DE102017223715A1 (de) 2017-12-22 2019-06-27 Magna Powertrain Bad Homburg GmbH Gerotorpumpe und Verfahren zur Herstellung einer solchen
CN114320890A (zh) * 2022-01-10 2022-04-12 淮安市虎力液压机械有限公司 一种高稳定性的液压齿轮泵
DE102022208141A1 (de) 2022-08-04 2024-02-15 Vitesco Technologies GmbH Pumpe, insbesondere Getriebeölpumpe

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JPS59226647A (ja) * 1983-06-02 1984-12-19 Matsushita Electric Ind Co Ltd 直流モ−タ
DE4106060C2 (de) * 1991-02-27 1995-11-30 Fresenius Ag Pumpe, insbesondere gekapselte medizinische Pumpe
US6270324B1 (en) * 1999-10-26 2001-08-07 Tuthill Corp. Positive displacement pump and thrust bearing assembly
DE10033950C2 (de) * 2000-07-13 2003-02-27 Schwaebische Huettenwerke Gmbh Pumpe mit Magnetkupplung
JP2005273648A (ja) 2004-02-23 2005-10-06 Aisin Seiki Co Ltd 電動ポンプ
US7137793B2 (en) 2004-04-05 2006-11-21 Peopleflo Manufacturing, Inc. Magnetically driven gear pump
JP4272112B2 (ja) 2004-05-26 2009-06-03 株式会社日立製作所 モータ一体型内接歯車式ポンプ及び電子機器
JP3996919B2 (ja) * 2004-08-20 2007-10-24 信越化学工業株式会社 永久磁石モータ
JP4237731B2 (ja) * 2005-05-31 2009-03-11 株式会社日立製作所 モータ一体型内接歯車式ポンプ及びその製造方法並びに電子機器
DE102006007554A1 (de) 2006-02-16 2007-08-23 Hydraulik-Ring Gmbh Förderpumpe, insbesondere für Harnstoffwasserlösung als Abgasnachbehandlungsmedium
DE102006037177A1 (de) 2006-08-09 2008-02-14 Robert Bosch Gmbh Innenzahnradpumpe
CN200989300Y (zh) * 2006-08-15 2007-12-12 兰州理工大学 一种液压电机内啮合齿轮泵
US20090167104A1 (en) * 2008-01-02 2009-07-02 Dunn Randy B Stackable brushless DC motor
DE202009000690U1 (de) 2009-01-16 2009-04-09 Gather Industrie Gmbh Rotationsverdrängerpumpe

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Also Published As

Publication number Publication date
RU2012107225A (ru) 2013-09-10
WO2011012364A2 (de) 2011-02-03
EP2459880A2 (de) 2012-06-06
JP5536885B2 (ja) 2014-07-02
WO2011012364A3 (de) 2012-02-09
CN102483058B (zh) 2015-10-07
DE102009028154A1 (de) 2011-02-03
IN2012DN00753A (ru) 2015-06-19
US8974207B2 (en) 2015-03-10
US20120148426A1 (en) 2012-06-14
CN102483058A (zh) 2012-05-30
JP2013500430A (ja) 2013-01-07
RU2540346C2 (ru) 2015-02-10

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