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EP2459880A2 - Pompe à engrenages - Google Patents

Pompe à engrenages

Info

Publication number
EP2459880A2
EP2459880A2 EP10722710A EP10722710A EP2459880A2 EP 2459880 A2 EP2459880 A2 EP 2459880A2 EP 10722710 A EP10722710 A EP 10722710A EP 10722710 A EP10722710 A EP 10722710A EP 2459880 A2 EP2459880 A2 EP 2459880A2
Authority
EP
European Patent Office
Prior art keywords
ring
gear pump
toothed ring
bearing
gear
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.)
Granted
Application number
EP10722710A
Other languages
German (de)
English (en)
Other versions
EP2459880B1 (fr
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/fr
Application granted granted Critical
Publication of EP2459880B1 publication Critical patent/EP2459880B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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.
  • 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 the direct motoring of the rotor.
  • the problem with such configurations is the bearing of the toothed ring, which must take over the driving torque of the electric motor.
  • EP 1 600 635 A2 describes an internal gear pump which has a pump section with an inner rotor formed on its outer periphery with teeth.
  • An outer rotor has on its inner
  • 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 and cooperates with a magnetic ring for generating an electromotive force, wherein the magnetic ring with the toothed ring for generating the conveying effect a Rotationsbewe- performs, wherein the toothed ring is supported by a sliding bearing.
  • 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 réelle leopard- wheel 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.
  • 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.
  • a second radial gap with a value of 0.1 to 0.5 mm is formed between the stator and the magnetic ring.
  • the ring-shaped section is formed integrally with the housing and protrudes radially inwardly from the latter.
  • the annular-shaped portion is pressed or glued into the housing. - A -
  • the mounting of the toothed ring is provided by a disk-shaped element which has a bearing journal which protrudes from the disk-shaped element and which is received in a corresponding recess provided in the housing.
  • the surface of the journal is designed as a plain bearing.
  • an inner wall of the recess may be formed as a sliding bearing.
  • the fuel connections are to be manufactured in the housing.
  • FIG. 1 shows a section through an internal gear pump according to the prior art
  • Fig. 5 is a plan view of the internal gear pump of Fig. 4;
  • Fig. 1 shows a section through an internal gear pump 1 according to the prior art.
  • the internal gear pump 1 comprises a gear pair, which consists of an internally toothed ring gear 2 and an externally toothed gear wheel 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 design is for the
  • 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 one embodiment.
  • the internal gear pump 1 according to the embodiment shown here differs essentially from the internal gear pump 1 shown in FIG. 1 in that the magnet ring 6 does not assume 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 1 1 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 portion 1 1 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 1 1, which is opposite to the magnetic ring 6, and the magnetic ring 6, a first radial gap 12 is present.
  • 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 a further embodiment, which differs from the internal gear pump 1 shown in FIG. 2 in that in this embodiment the annular section 11 is not made integral with the housing 5 but instead is manufactured as a separate component.
  • the ring-shaped portion 1 1 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.
  • FIG. 4 shows a section through an internal gear pump 1 according to yet another embodiment, wherein the bearing function for the toothed ring 2 assumes a disk-shaped element 18, which has a bearing journal 19 projecting radially from the disk-shaped element 18.
  • the bearing pin 19 of the disk-shaped element 18 is arranged or mounted in a recess 20 formed in the bearing journal 4 of the housing 5, the disk-shaped element 18 abutting against the toothed ring 2 from the outside.
  • the sliding bearing 25 is provided in this case between the bearing pin 19 of the disc-shaped element 18 and the bearing pin 4 of the housing 5.
  • either the surface of the bearing journal 19 or the inner wall 21 of the formed in the bearing journal 4 of the housing 5 recess 20 may be formed as a sliding bearing.
  • Fig. 5 shows a plan view of the internal gear pump 1 of Fig. 4.

Landscapes

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

Abstract

L'invention concerne une pompe à engrenages (1) pour le refoulement d'un fluide, comprenant une roue dentée (3) à denture externe montée rotative sur un tourillon (4), et une couronne (2) à denture interne, qui sont engrenées pour produire un effet de refoulement, et qui sont montées dans un carter (5) conjointement avec un stator (7) à commutation électrique. Le stator (7) est placé concentriquement autour de la couronne (2) et coopère avec un aimant annulaire (6) pour produire une force électromotrice, l'aimant annulaire (6) effectuant un mouvement de rotation avec la couronne (2) pour produire un effet de refoulement, et la couronne (2) étant montée sur un palier lisse (25).
EP10722710.0A 2009-07-31 2010-06-08 Pompe à engrenages Not-in-force EP2459880B1 (fr)

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 (fr) 2009-07-31 2010-06-08 Pompe à engrenages

Publications (2)

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

Family

ID=43402330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722710.0A Not-in-force EP2459880B1 (fr) 2009-07-31 2010-06-08 Pompe à engrenages

Country Status (8)

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

Families Citing this family (12)

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Publication number Priority date Publication date Assignee Title
US8840385B2 (en) * 2011-03-03 2014-09-23 Ti Group Automotive Systems, L.L.C. Positive displacement fluid pump
CN104136779B (zh) 2012-02-27 2016-10-26 麦格纳动力系巴德霍姆堡有限责任公司 泵装置
KR102150609B1 (ko) * 2014-02-21 2020-09-01 엘지이노텍 주식회사 모터
EP3253968A1 (fr) * 2015-02-06 2017-12-13 Robert Bosch GmbH Unité de pompe permettant d'alimenter en carburant, de préférence du carburant diesel, un moteur à combustion interne
DE102015213387A1 (de) * 2015-07-16 2017-01-19 Robert Bosch Gmbh Rotationskolbenpumpe
JP2019530405A (ja) 2016-09-15 2019-10-17 ナントエナジー，インク． ハイブリッド型バッテリシステム
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
US11335918B2 (en) 2016-10-21 2022-05-17 Form Energy, Inc. Corrugated fuel electrode
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
GB2632731B (en) 2023-08-17 2025-11-12 Hangzhou Quadrant Tech Co Ltd Integrated electric oil pump

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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
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Also Published As

Publication number Publication date
RU2540346C2 (ru) 2015-02-10
JP5536885B2 (ja) 2014-07-02
US20120148426A1 (en) 2012-06-14
IN2012DN00753A (fr) 2015-06-19
RU2012107225A (ru) 2013-09-10
DE102009028154A1 (de) 2011-02-03
US8974207B2 (en) 2015-03-10
EP2459880B1 (fr) 2017-01-04
JP2013500430A (ja) 2013-01-07
WO2011012364A2 (fr) 2011-02-03
CN102483058A (zh) 2012-05-30
WO2011012364A3 (fr) 2012-02-09
CN102483058B (zh) 2015-10-07

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