EP1536139A1 - Moto-pompe munie d'une pompe à engrenages et d'un moteur électrique - Google Patents

Moto-pompe munie d'une pompe à engrenages et d'un moteur électrique Download PDF

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Publication number
EP1536139A1
EP1536139A1 EP04018790A EP04018790A EP1536139A1 EP 1536139 A1 EP1536139 A1 EP 1536139A1 EP 04018790 A EP04018790 A EP 04018790A EP 04018790 A EP04018790 A EP 04018790A EP 1536139 A1 EP1536139 A1 EP 1536139A1
Authority
EP
European Patent Office
Prior art keywords
pump
rotor
electric motor
shaft
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.)
Granted
Application number
EP04018790A
Other languages
German (de)
English (en)
Other versions
EP1536139B1 (fr
Inventor
Franz Arbogast
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.)
Voith Turbo GmbH and Co KG
Original Assignee
Voith Turbo GmbH and Co KG
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 Voith Turbo GmbH and Co KG filed Critical Voith Turbo GmbH and Co KG
Publication of EP1536139A1 publication Critical patent/EP1536139A1/fr
Application granted granted Critical
Publication of EP1536139B1 publication Critical patent/EP1536139B1/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
    • 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • 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

Definitions

  • the invention relates to a pump unit which a gear pump and having an electric motor in a common housing.
  • Such a pump unit is also used as a motor pump or Motor pump unit referred to.
  • a motor pump unit which in the The preamble of claim 1 combined features is through the published patent application DE 100 15 139 A1 describes and is for the better Understanding the present invention in Figure 1 shown. This is in the Explained in detail below:
  • the motor pump unit comprises an electric motor 1 with a rotor 1.1 and a stator 1.2.
  • the stator 1.2 has a laminated stator core 1.2.1 and a Winding 1.2.2.
  • the rotor 1.1 has a cup shape and is in axial section seen U-shaped.
  • a pump 2 Radially inside the rotor 1.1 and the stator 1.2, a pump 2 is arranged. As you can see, this pump is 2 from the rotor 1.1 and the Stator 1.2 of the electric motor 1 completely enclosed.
  • the web 1.1.1 of the rotor 1 has a hole with a Internal toothing, which with an external toothing of the pump shaft 2.1 combs.
  • the pump shaft 2.1 carries a pinion 2.2, which with a internally toothed ring gear 2.3 meshes, the eccentric to the pinion 2.2 within of the rotor 1.1 of the electric motor 1 is arranged.
  • Axially on both sides of the ring gear 2.3 side windows 2.4 and 2.5 of the pump 2 are arranged, in which the Pump shaft 2.1 is rotatably supported by plain bearings 2.4.1 and 2.5.1.
  • a pumping medium inlet 5 in an end face of the housing 4 is provided.
  • a Pumpmediumauslass 6 is provided in the same end face of the housing.
  • DE 1 553 116 A describes an electric motor and an oil feed pump.
  • the rotor the motor and the impeller of the pump sit on a common shaft.
  • the Shaft is mounted on both sides of the rotor in two bearings.
  • the invention is based on the object, a motor-pump unit of developed in the manner described above such that even in a small Delivery volume and low pressure an optimal and therefore cost-effective Construction volume is achieved.
  • the solution according to the invention is based on the knowledge of the inventor that the insufficient building volume essentially due to an unfavorable ratio of Motor diameter is caused to the motor length. Accordingly, the Inventor further developed the known design of the pump such that the Ratio of motor diameter and motor length are made smaller can.
  • This possibility is in the pump unit according to the invention thereby ensuring that the rotor of the electric motor end face to the pinion and the ring gear of the pump is arranged.
  • the drive connection between Electric motor and pump is made by connecting the pump with a extended pump shaft is fitted, which in the rotor of the electric motor protrudes.
  • the rotor of the electric motor is on a section of extended pump shaft preferably flying, rotatably mounted. You could the arrangement of the pump axially displaced next to the rotor of the electric motor on a common wave also called tandem construction.
  • the inventive design can achieve many advantages or maintained, such as the only small required space of the pump unit, the formation of the engine and the Pump to an integral unit, cooling the engine through the Pumping medium, which is in particular a hydraulic oil, the comparatively high Sound level reduction as well as the possibility of both units, that is pump and Engine, to be able to test separately.
  • the invention is Pump unit free from any radial shaft seals, fan noise, Roller bearings as well as separate pump carriers and elastic couplings.
  • the rotor of the electric motor via a Mitticianver Wegung on its front side or in the area of his Front side torsionally rigid connected to the pump shaft. It comes in particular the front side of the rotor for the torsionally rigid connection into consideration, which in Relative to the pump is located, that is, which the pump secluded side is.
  • the pump shaft with a Be provided shaft journal, which carries an external toothing, which with the Rotor of the motor or a rotor mounted in the disc meshes.
  • the pump 2 is no longer complete, but only partially within the stator 1.2 of the electric motor. 1 arranged, and only within the one axial end of the Stator winding 1.2.2 and completely out of the axial range of Stator laminations 1.2.1.
  • the shaft 2.1 of the pump 2 has two sections, a first section 2.1.1, which is associated with the rotor 1.1 of the electric motor, and a second Section 2.1.2, which is assigned to the pump 2.
  • the area 2.1.2 is the Pump shaft 2.1 stored within the pump 2, preferably by the Bearings 2.4.1 and 2.5.1 on both sides of the pump shaft 2.1 worn pinion 2.2.
  • the area 2.1.1 of the pump shaft 2.1, which with formed a comparatively smaller diameter than the range 2.1.2 is completely enclosed by the hollow cylindrical rotor 1.1 and carries the rotor 1.1, for example, by the spacers shown or spacer sleeves 8 and 9.
  • the rotor 1.1 of the electric motor 1 is thus flying on the pump shaft 2.1 stored.
  • the pump shaft 2.1 is mounted in two discs 20, 21, between which the pinion is 2.2.
  • the shaft section 2.1.1 has preferably a smaller diameter than the pump shaft 2.1 in the area the discs 20 and 21, at least in the region of the disc 21, or a at most equal diameter. This is for assembly reasons necessary. Namely, when mounting the disc 21 from the right to the Shaft section 2.1.1 postponed, and then on the right section of Pump shaft 2.1.
  • the torsionally rigid connection between the rotor 1.1 and pump shaft 2.1 is through made a non-rotatable connection 7.
  • This is as an external toothing on one Achszapfen formed at the end of the pump shaft 2.1, which is the opposite pump end.
  • On this journal which the has smallest diameter of the pump shaft 2.1, is a driving plate 10 pushed with an internal toothing or feather key, which in a mechanical engagement with the rotor 1.1 stands. Because of that Internal toothing of the driving plate 10 and the external toothing of the Combing axle journal, the drive power of the rotor 1.1 is on the pump shaft 2.1 and thus to the pinion 2.2 and the eccentric to this Ring gear 2.3 transmitted.
  • the line of the pumping medium through the housing 4 is indicated by the arrows shown.
  • the pumping medium passes through one Pump medium inlet 5 in a first end 4.1 of the housing 4 in axial A direction, distributed in the circumferential direction in an annular channel 11, which the encloses first end of the winding 1.2.2 of the stator 1.2, and flows then in the axial direction along the stator 1.2 through an annular gap between the stator 1.2 and the rotor 1.1.
  • radially inside the Ringpaltes axial bores 12 provided in the rotor 1.1 through which the Pump medium is passed. After the pumping medium axially through the Rotor 1.1 has passed, it flows into a second annular channel 13 on the other side of the rotor 1.1, which the second axial end of the winding 1.2.2 and the pump 2 encloses.
  • the pumping medium is passed into the pump 2, there by the gear pump, that is the meshing engagement of the pinion 2.2 in the internally toothed ring gear 2.3, compressed and axially through the Pumpmediumauslass 6 promoted out of the housing 4 out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP04018790A 2003-11-20 2004-08-07 Moto-pompe munie d'une pompe à engrenages et d'un moteur électrique Expired - Lifetime EP1536139B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10354312A DE10354312A1 (de) 2003-11-20 2003-11-20 Pumpenaggregat mit einer Zahnradpumpe und einem Elektromotor
DE10354312 2003-11-20

Publications (2)

Publication Number Publication Date
EP1536139A1 true EP1536139A1 (fr) 2005-06-01
EP1536139B1 EP1536139B1 (fr) 2006-03-01

Family

ID=34442269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04018790A Expired - Lifetime EP1536139B1 (fr) 2003-11-20 2004-08-07 Moto-pompe munie d'une pompe à engrenages et d'un moteur électrique

Country Status (3)

Country Link
US (1) US7367787B2 (fr)
EP (1) EP1536139B1 (fr)
DE (2) DE10354312A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12031559B1 (en) 2023-07-07 2024-07-09 Robert Bosch Gmbh Integrated electro-hydraulic unit

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009018759A1 (de) * 2009-04-27 2010-10-28 Continental Automotive Gmbh Pumpen-Motor-Einrichtung
US20110017848A1 (en) * 2009-07-23 2011-01-27 Keith Carl A Sprayer technology
JP4896201B2 (ja) * 2009-10-26 2012-03-14 三菱電機株式会社 燃料供給装置
DE202015105244U1 (de) * 2015-10-05 2017-01-09 Ebm-Papst St. Georgen Gmbh & Co. Kg Pumpe-Motor-Einheit
DE102015015863A1 (de) * 2015-12-09 2017-06-14 Fte Automotive Gmbh Elektromotorisch angetriebene Flüssigkeitspumpe
DE102020122867A1 (de) * 2020-09-01 2022-03-03 Schwäbische Hüttenwerke Automotive GmbH Pumpen-Motor-Einheit mit integrativem Gehäusedeckel
US11990819B2 (en) 2020-11-24 2024-05-21 Bosch Rexroth Corporation Electric and hydraulic machine
DE102022128264A1 (de) * 2022-10-25 2024-04-25 Valeo Powertrain Gmbh Zahnradpumpe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578390A1 (fr) * 1992-06-17 1994-01-12 Vickers Incorporated Appareil hydraulique entraîné par un moteur électrique intégré en ligne
US5320501A (en) * 1991-04-18 1994-06-14 Vickers, Incorporated Electric motor driven hydraulic apparatus with an integrated pump
US6585498B2 (en) * 2000-03-29 2003-07-01 Voith Turbo Gmbh & Co Kg Motor-pump unit with pump shaft pinion enmeshed with motor rotor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553116B2 (de) * 1966-10-25 1971-07-15 Licentia Patent Verwaltungs GmbH, 6000 Frankfurt Elektromotorisch betriebene Zahnrad Ölpumpe
DE1638188B1 (de) * 1967-05-09 1971-05-06 Danfoss As Durch elektromotor angetriebene pumpe fuer oelbrenner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5320501A (en) * 1991-04-18 1994-06-14 Vickers, Incorporated Electric motor driven hydraulic apparatus with an integrated pump
EP0578390A1 (fr) * 1992-06-17 1994-01-12 Vickers Incorporated Appareil hydraulique entraîné par un moteur électrique intégré en ligne
US6585498B2 (en) * 2000-03-29 2003-07-01 Voith Turbo Gmbh & Co Kg Motor-pump unit with pump shaft pinion enmeshed with motor rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12031559B1 (en) 2023-07-07 2024-07-09 Robert Bosch Gmbh Integrated electro-hydraulic unit

Also Published As

Publication number Publication date
DE10354312A1 (de) 2005-06-23
DE502004000320D1 (de) 2006-04-27
US7367787B2 (en) 2008-05-06
EP1536139B1 (fr) 2006-03-01
US20050152790A1 (en) 2005-07-14

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