EP2122174A1 - Unité intégrée de pompe à roue dentée intérieure avec moteur électrique - Google Patents

Unité intégrée de pompe à roue dentée intérieure avec moteur électrique

Info

Publication number
EP2122174A1
EP2122174A1 EP08773826A EP08773826A EP2122174A1 EP 2122174 A1 EP2122174 A1 EP 2122174A1 EP 08773826 A EP08773826 A EP 08773826A EP 08773826 A EP08773826 A EP 08773826A EP 2122174 A1 EP2122174 A1 EP 2122174A1
Authority
EP
European Patent Office
Prior art keywords
outer ring
rotor
rotor pump
pump according
inner ring
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
EP08773826A
Other languages
German (de)
English (en)
Other versions
EP2122174B1 (fr
Inventor
Willi Schneider
Torsten Helle
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.)
Joma Polytec GmbH
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 EP2122174A1 publication Critical patent/EP2122174A1/fr
Application granted granted Critical
Publication of EP2122174B1 publication Critical patent/EP2122174B1/fr
Active 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
    • 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
    • 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
    • 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
    • F04C2/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the invention relates to a rotor pump with an internally toothed outer ring and a therein mounted and meshing with this, externally toothed inner ring, wherein the outer ring and the inner ring are arranged axially parallel to each other and the axis of the outer ring and the axis of the inner ring spaced from each other, and wherein the outer ring is driven by a hollow shaft motor with a stator carrying a winding and a rotor rotatably mounted therein.
  • an externally toothed inner ring rolls in an externally toothed outer ring, wherein the inner ring is eccentric to the outer ring and is driven by means of a suitable drive. If the inner ring has e.g. five teeth, then they roll between six teeth of the outer ring. Per revolution of the inner ring, the fluid is sucked into five working chambers and then displaced from them.
  • the invention has for its object to provide a rotor pump, which has smaller dimensions with the same capacity and has fewer components.
  • the integration of the rotor of the hollow shaft motor in the outer ring has the significant advantage that a component is saved and that at the same time the radial dimension can be reduced. In addition to the savings of components, such a rotor pump is also easier. In addition, the assembly is facilitated because no rotor must be connected to the outer ring.
  • the inner ring runs loosely around an axis. It is advantageous that relatively large rotational or tangential forces can be transmitted, and there is no danger that vibrations or extreme temperature fluctuations cause a detachment of the rotor from the outer ring.
  • a further variant provides that the magnets for the hollow shaft motor are arranged between the tooth spaces or in the teeth of the outer ring. This also reduces the size, since the space within the teeth is used to receive the magnets for the hollow shaft motor.
  • the magnets can take special, adapted to the tooth shape shapes.
  • the outer ring for receiving the magnets has recesses which are formed by openings or depressions.
  • the breakthroughs can be relatively large magnets be added, whereas in the depressions from both sides magnets can be inserted.
  • the recesses In order to be able to optimally utilize the existing space between the tooth spaces, the recesses have a substantially lenticular cross-section. The cross-sectional shape of the magnets are adjusted accordingly.
  • Optimal driving forces are generated by equating the pitch of the stator as the pitch of the outer ring or an integral multiple of the pitch of the outer ring.
  • a simple variant provides that the outer ring made of aluminum or plastic. As a result, the weight of the rotor pump is further reduced and such a rotor can be manufactured inexpensively.
  • Figure 1 is a perspective view of the rotor pump according to the invention.
  • Figure 2 is a plan view of the rotor pump
  • FIG. 3 is a side view of the rotor pump in the direction of arrow III in Figure 2;
  • FIG. 4 shows a section IV-IV according to FIG. 2;
  • FIG. 5 shows a section V-V according to FIG. 3.
  • the reference numeral 10 represents a rotor pump with which, for example, fluid, in particular oil for an engine, such as an internal combustion engine, or urea for an exhaust gas purification system, is conveyed.
  • the rotor pump 10 has an inlet 12 and an outlet 14.
  • the inlet 12 and the outlet 14 are provided in a housing cover 16, which is flanged to a housing pot 18.
  • the inlet 12 and the outlet 14 change when the direction of rotation.
  • the rotor pump 10 is self-contained and only open to the outside via the inlet 12 and the outlet 14. No drive shaft or the like leads into the rotor pump 10, so that seals are unnecessary for this purpose.
  • Such a rotor pump 10 fulfills high tightness requirements.
  • FIG. 2 shows a plan view of the housing cover 16 and displacement chambers 20 can be seen through the inlet 12 and outlet 14.
  • FIG. 3 shows the rotor pump 10 in a side view and FIG. 4 in a longitudinal section with the housing pot 18 removed.
  • the displacement chambers 20 are formed between an outer ring 22 and an inner ring 24.
  • the outer ring 22 is internally toothed and has the illustrated
  • Embodiment a total of six inwardly projecting teeth 26, between which tooth spaces 36 are located.
  • the inner ring 24 is externally toothed and has a total of five outwardly facing teeth 28 which engage in the tooth spaces 36.
  • the teeth 26 and 28 mesh and thereby form the Displacement spaces 20.
  • the outer ring 22 and the inner ring 24 are aligned coaxially with each other, whereas their axes 30 and 32 have a distance 34 (eccentricity) to each other.
  • the outer ring 22 forms the rotor 38 of a hollow shaft motor 40 and is rotatably mounted in a stator 42.
  • This stator 42 has longitudinally extending and radially outwardly open receptacles 44 for (not shown) coils, whereas the rotor 38 forming outer ring 22 recesses 46 for magnets 48 ( Figure 4).
  • the recesses 46 of the illustrated embodiment are designed as depressions, so that a magnet 48 can be used from each side.
  • the cross section of the recesses 46 is substantially lenticular with a first radially outer peripheral surface 50 curved about the axis 30 and a second radially inner peripheral surface 52 following the profile of the tooth 26.
  • Such a rotor pump 10 is not only simple, but also has a low weight and is easy to install and also has a larger flow at the same speed.
  • the radial dimensions due to the integration of the magnets 48 in the outer ring 22 are low.
  • the housing of the rotor pump 10, i. the housing cover 16 and the housing pot 18, is penetrated by no components, and therefore no leaks are to be feared.

Abstract

L'invention concerne une pompe à rotor dotée d'une bague extérieure à denture intérieure et une bague intérieure à denture extérieure qui y est montée et s'engrène sur elle, les axes de la bague extérieure et de la bague intérieure étant parallèles l'un à l'autre et les axes de la bague extérieure et de la bague intérieure présentant un écart mutuel, la bague extérieure étant reliée à un moteur à arbre creux doté d'un stator qui porte des enroulements et dans lequel un rotor est monté à rotation, caractérisée en ce que la bague extérieure forme le rotor du moteur à arbre creux.
EP08773826A 2007-07-25 2008-07-03 Unité intégrée de pompe à roue dentée intérieure avec moteur électrique Active EP2122174B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007035239A DE102007035239A1 (de) 2007-07-25 2007-07-25 Rotorpumpe
PCT/EP2008/005415 WO2009012872A1 (fr) 2007-07-25 2008-07-03 Unité intégrée de pompe à roue dentée intérieure avec moteur électrique

Publications (2)

Publication Number Publication Date
EP2122174A1 true EP2122174A1 (fr) 2009-11-25
EP2122174B1 EP2122174B1 (fr) 2012-09-05

Family

ID=39790354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08773826A Active EP2122174B1 (fr) 2007-07-25 2008-07-03 Unité intégrée de pompe à roue dentée intérieure avec moteur électrique

Country Status (5)

Country Link
US (1) US8113794B2 (fr)
EP (1) EP2122174B1 (fr)
CN (1) CN101711313A (fr)
DE (1) DE102007035239A1 (fr)
WO (1) WO2009012872A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111779673A (zh) * 2020-07-03 2020-10-16 浙江凯斯特动力科技有限公司 一种电机同轴内啮合齿轮泵

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US8376720B2 (en) * 2010-03-05 2013-02-19 GM Global Technology Operations LLC Outer ring driven gerotor pump
DE102010029338A1 (de) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Innenzahnradpumpe
US8840385B2 (en) 2011-03-03 2014-09-23 Ti Group Automotive Systems, L.L.C. Positive displacement fluid pump
DE102011082705A1 (de) * 2011-09-14 2013-03-14 Robert Bosch Gmbh Pumpe, insbesondere Ölpumpe für eine Brennkraftmaschine
KR101326838B1 (ko) * 2011-11-02 2013-11-11 현대자동차주식회사 요소수 펌프 구조
US10018198B2 (en) 2012-02-27 2018-07-10 Magna Powertrain Bad Homburg GmbH Pump arrangement having temperature control components
JP5771560B2 (ja) * 2012-05-30 2015-09-02 日立アプライアンス株式会社 ギヤポンプ及びこれを備えた冷蔵庫
EP2920423B1 (fr) * 2012-10-29 2020-01-08 Pierburg Pump Technology GmbH Pompe hydraulique électrique d'automobile
JP5952723B2 (ja) * 2012-11-30 2016-07-13 株式会社日本自動車部品総合研究所 回転式ポンプおよびそれを備えたブレーキ装置
CN103967780B (zh) * 2014-04-11 2016-08-17 西安交通大学 一种开关磁通电机驱动的双联三齿轮内啮合复合电机泵
US9724787B2 (en) * 2014-08-07 2017-08-08 Illinois Tool Works Inc. System and method of monitoring a welding environment
DE102015207748A1 (de) * 2015-04-28 2016-11-03 Gkn Sinter Metals Engineering Gmbh Fluidpumpe
IT201600129613A1 (it) * 2016-12-21 2018-06-21 Bosch Gmbh Robert Pompa elettrica a ingranaggi
CN115183046A (zh) * 2022-09-13 2022-10-14 浙江大学高端装备研究院 一种紧凑型电液驱动执行器

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JPS6211348Y2 (fr) * 1981-06-16 1987-03-17
JPS6062850A (ja) * 1983-09-16 1985-04-11 Teijin Seiki Co Ltd ギヤドモ−タ
JPH01182585A (ja) * 1988-01-13 1989-07-20 Komatsu Ltd プラスチック製ギヤポンプ
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CN111779673A (zh) * 2020-07-03 2020-10-16 浙江凯斯特动力科技有限公司 一种电机同轴内啮合齿轮泵

Also Published As

Publication number Publication date
US20100111722A1 (en) 2010-05-06
WO2009012872A1 (fr) 2009-01-29
DE102007035239A1 (de) 2009-01-29
EP2122174B1 (fr) 2012-09-05
US8113794B2 (en) 2012-02-14
CN101711313A (zh) 2010-05-19

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