EP1181453A1 - Motor-pump unit - Google Patents

Motor-pump unit

Info

Publication number
EP1181453A1
EP1181453A1 EP01917112A EP01917112A EP1181453A1 EP 1181453 A1 EP1181453 A1 EP 1181453A1 EP 01917112 A EP01917112 A EP 01917112A EP 01917112 A EP01917112 A EP 01917112A EP 1181453 A1 EP1181453 A1 EP 1181453A1
Authority
EP
European Patent Office
Prior art keywords
pump
motor
rotor
pump unit
electric motor
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
EP01917112A
Other languages
German (de)
French (fr)
Other versions
EP1181453B1 (en
Inventor
Franz Arbogast
Gerd Hundt
Thomas Neubert
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 EP1181453A1 publication Critical patent/EP1181453A1/en
Application granted granted Critical
Publication of EP1181453B1 publication Critical patent/EP1181453B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/128—Driving means
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • 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
    • F04C2/10—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
    • 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

Definitions

  • the invention relates to a motor pump unit in which an electric motor and a pump are structurally combined with one another.
  • the rotor / stator of the motor envelops the pump.
  • EP 0 611 887 A1 describes a motor pump unit. Here is the rotor
  • Units of this type have the great advantage that they take up minimal space. But there is still room for improvement.
  • the invention has for its object to further improve a motor pump unit of the type mentioned, in particular with regard to the manufacturing effort and space requirements.
  • the rotor of the electric motor - seen in an axial section - is U-shaped.
  • the web of the U is provided with an internal toothing in the area of the axis of the unit, and the drive shaft of the
  • the pump forms a completely independent, self-sufficient unit. It can be manufactured separately, checked separately and completely installed in the space enclosed by the stator of the electric motor.
  • the motor pump unit comprises an electric motor 1 with a
  • the two elements motor and pump are enclosed by a common housing 3.
  • a common housing 3 In the housing 3 there is an inlet 3.1 and an outlet 3.2 for the medium to be pumped.
  • the rotor 1.3 of the motor 1 is pot-shaped. In the present axial section it appears U-shaped.
  • the pinion shaft 2.3 is in rotary connection with the rotor 1.3 via a toothing.
  • web 1.3.1 of the U there is an internal toothing, while the pinion shaft has a corresponding external toothing. Internal teeth and external teeth mesh with each other.
  • Another drive connection could also be established between the rotor 1.3 of the motor 1 and the pinion shaft 2.3. So it is conceivable to provide not only a single, but two or more toothings with corresponding torque-transmitting elements between these two, so that a translation from the speed of the rotor to the pinion shaft takes place in slow or fast.
  • the rotor 1.3 is mounted on the pump 2, more precisely on the ring gear 2.3 and the side disks 2.4j 2.5. '

Abstract

A motor-pump unit including an electric motor and a pump. The pump is concentrically surrounded by the rotor/stator of the motor. The rotor of the electric motor is U-shaped, viewed in an axial section. The cross-piece of the "U", in the region of the common axis, is provided with an interior toothing. The shaft of the pump includes a pinion that meshes with the interior toothing of the cross-piece of the "U".

Description

Motorpumpenaggregat A motor pump assembly
Die Erfindung betrifft ein Motorpumpenaggregat, bei dem ein Elektromotor und eine Pumpe baulich miteinander vereinigt sind. Dabei umhüllt der Rotor/Stator des Motors die Pumpe.The invention relates to a motor pump unit in which an electric motor and a pump are structurally combined with one another. The rotor / stator of the motor envelops the pump.
DE 195 38 278 A1 beschreibt ein solches Motorpumpenaggregat. Dabei ist der Rotor des Elektromotors gleichzeitig das Pumpenrad der Pumpe.DE 195 38 278 A1 describes such a motor pump unit. The rotor of the electric motor is also the pump impeller of the pump.
EP 0 611 887 A1 beschreibt ein Motorpumpenaggregat. Dabei ist der RotorEP 0 611 887 A1 describes a motor pump unit. Here is the rotor
- es Motors zwar ein eigenständiges Bauteil, aber mit dem Zylinderblock einer Kolbenpumpe drehfest verbunden.- Although it is an independent component of the engine, it is non-rotatably connected to the cylinder block of a piston pump.
Aggregate dieser Bauart haben den großen Vorteil, daß sie nur einen minimalen Raum beanspruchen. Sie sind aber noch verbesserungsfähig.Units of this type have the great advantage that they take up minimal space. But there is still room for improvement.
Der Erfindung liegt die Aufgabe zugrunde, ein Motorpumpenaggregat der genannten Bauart noch weiter zu verbessern, insbesondere bezüglich des Fertigungsaufwandes und des Raumbedarfs.The invention has for its object to further improve a motor pump unit of the type mentioned, in particular with regard to the manufacturing effort and space requirements.
Diese Aufgabe wird durch die Merkmale von Anspruch 1 gelöst.This object is solved by the features of claim 1.
Demgemäß wird der Rotor des Elektromotors - in einem Axialschnitt gesehen - U-förmig gestaltet. Dabei wird der Steg des U im Bereich der Achse des Aggregats mit einer Innenverzahnung versehen, und die Antriebswelle derAccordingly, the rotor of the electric motor - seen in an axial section - is U-shaped. The web of the U is provided with an internal toothing in the area of the axis of the unit, and the drive shaft of the
Pumpe mit einem entsprechenden Ritzel, so daß Innenverzahnung und Ritzel miteinander kämmen.Pump with a corresponding pinion so that the internal toothing and pinion mesh.
Es kommen verschiedene Arten von Elektromotoren in Betracht, beispielsweise Asynchronmotoren, Reluktanzmotoren oder sogenannteDifferent types of electric motors come into consideration, for example asynchronous motors, reluctance motors or so-called
Kurzschlußläufer. Es kommen auch die unterschiedlichsten Arten von Pumpen in Betracht. Besonders vorteilhaft läßt sich die Erfindung bei Innenzahnradpumpen anwenden.Squirrel cage. Different types of pumps are also possible. The invention can be used particularly advantageously in internal gear pumps.
Die Pumpe bildet dabei eine völlig selbständige, autarke Einheit. Sie läßt sich separat herstellen, separat prüfen sowie komplett in den vom Stator des Elektromotors umschlossenen Raum einbauen.The pump forms a completely independent, self-sufficient unit. It can be manufactured separately, checked separately and completely installed in the space enclosed by the stator of the electric motor.
Dabei ist es möglich, den Rotor des Elektromotors auf dem Gehäuse der Innenzahnradpumpe zu lagern.It is possible to mount the rotor of the electric motor on the housing of the internal gear pump.
Die Erfindung ist anhand der Zeichnungen erläutert. Darin ist im einzelnen folgendes dargestellt:The invention is explained with reference to the drawings. The following is shown in detail:
Das Motorpumpenaggregat umfaßt einen Εlektromotor 1 mit einemThe motor pump unit comprises an electric motor 1 with a
Statorblechpaket 1.1 , einer Wicklung 1.2 und einem Rotor 1.3.Stator laminated core 1.1, a winding 1.2 and a rotor 1.3.
-. .V Es umfaßt ferner eine Innenzahnradpumpe 2. Diese weist ein Ritzel 2.1 auf, ein gegenüber diesem exzentrischen Hohlrad 2.2 sowie einer Ritzelwelle 2.3. Die Ritzelwelle 2.3 ist in Seitenscheiben 2.4, 2.5 gelagert. Im vorliegenden-. .V It also includes an internal gear pump 2. This has a pinion 2.1, an eccentric ring gear 2.2 with respect to this and a pinion shaft 2.3. The pinion shaft 2.3 is mounted in side windows 2.4, 2.5. In the present
Falle sind Gleitlager 2.4.1 , 2.5.1 vorgesehen.Cases are provided bearings 2.4.1, 2.5.1.
Die beiden Elemente Motor und Pumpe sind von einem gemeinsamen Gehäuse 3 umschlossen. Im Gehäuse 3 befinden sich ein Zulauf 3.1 sowie ein Auslauf 3.2 für das zu pumpende Medium.The two elements motor and pump are enclosed by a common housing 3. In the housing 3 there is an inlet 3.1 and an outlet 3.2 for the medium to be pumped.
Gemäß der Erfindung ist der Rotor 1.3 des Motors 1 topfförmig gestaltet. Im vorliegenden Axialschnitt erscheint er U-förmig. Dabei steht die Ritzelwelle 2.3 mit dem Rotor 1.3 über eine Verzahnung in Drehverbindung. Im Steg 1.3.1 des U befindet sich nämlich eine Innenverzahnung, während die Ritzelwelle eine entsprechende Außenverzahnung aufweist. Innenverzahnung und Außeπverzahnung kämmen miteinander.According to the invention, the rotor 1.3 of the motor 1 is pot-shaped. In the present axial section it appears U-shaped. The pinion shaft 2.3 is in rotary connection with the rotor 1.3 via a toothing. In web 1.3.1 of the U there is an internal toothing, while the pinion shaft has a corresponding external toothing. Internal teeth and external teeth mesh with each other.
Es könnte auch eine anderweitige Triebverbindung zwischen dem Rotor 1.3 des Motors 1 und der Ritzelwelle 2.3 hergestellt sein. So ist es denkbar, zwischen diesen beiden nicht nur eine einzige, sondern zwei oder mehrere Verzahnungen mit entsprechenden Drehmoment übertragenden Elementen vorzusehen, so daß eine Übersetzung von der Drehzahl des Rotors zur Ritzelwelle ins Langsame oder ins Schnelle erfolgt.Another drive connection could also be established between the rotor 1.3 of the motor 1 and the pinion shaft 2.3. So it is conceivable to provide not only a single, but two or more toothings with corresponding torque-transmitting elements between these two, so that a translation from the speed of the rotor to the pinion shaft takes place in slow or fast.
Der Rotor 1.3 ist auf der Pumpe 2 gelagert, genauer gesagt auf dem Hohlrad 2.3 und den Seitenscheiben 2.4j 2.5.' The rotor 1.3 is mounted on the pump 2, more precisely on the ring gear 2.3 and the side disks 2.4j 2.5. '

Claims

Patentansprüche claims
1. Motorpumpenaggregat;1. Motor pump unit;
1.1 mit einem Elektromotor (1);1.1 with an electric motor (1);
1.2 mit einer Pumpe (2);1.2 with a pump (2);
1.3 die Pumpe (2) ist vom Rotor/Stator (1.1.) des Motors konzentrisch umschlossen; 1.4 der Rotor (1.3) des Elektromotors ist - in einem Axialschnitt gesehen -1.3 the pump (2) is concentrically enclosed by the rotor / stator (1.1.) Of the motor; 1.4 the rotor (1.3) of the electric motor is - seen in an axial section -
U-förmig;U-shaped;
1.5 der Steg des U ist im Bereich der gemeinsamen Achse mit einer Innenverzahnung versehen;1.5 the web of the U is provided with internal teeth in the area of the common axis;
1.6 die Welle (2.2) der Pumpe (2) weist ein Ritzel (2.1) auf, das mit der Innenverzahnung des Steges des U kämmt.1.6 the shaft (2.2) of the pump (2) has a pinion (2.1) which meshes with the internal toothing of the web of the U.
2. Motorpumpenaggregat nach Anspruch 1 , dadurch gekennzeichnet, daß der Rotor (1.3) des Elektromotors das Pumpengehäuse umschließt und auf diesem gelagert ist.2. Motor pump unit according to claim 1, characterized in that the rotor (1.3) of the electric motor encloses the pump housing and is mounted thereon.
3. Motorpumpenaggregat nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß die Pumpe (2) eine Hydropumpe ist.3. Motor pump unit according to one of claims 1 to 2, characterized in that the pump (2) is a hydraulic pump.
4. Motorpumpenaggregat nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß wenigstens ein Teil des Durchsatzes des4. Motor pump unit according to one of claims 1 to 3, characterized in that at least part of the throughput of
Betriebsmediums der Pumpe (2) zum Kühlen des Motors ausgenutzt wird.Operating medium of the pump (2) is used to cool the motor.
5. Motorpumpenaggregat nach einem der Ansprüche 1 bis 4, gekennzeichnet durch die folgenden Merkmale: 5. Motor pump unit according to one of claims 1 to 4, characterized by the following features:
5.1 zwischen dem Steg des U und der benachbarten Stirnwand des Motorgehäuses befindet sich ein Freiraum;5.1 there is a free space between the web of the U and the adjacent end wall of the motor housing;
5.2 die Welle (2.2) der Pumpe (2) ragt in den Freiraum hinein und trägt einen Impeller;5.2 the shaft (2.2) of the pump (2) protrudes into the free space and carries an impeller;
5.3 der Impeller ist derart gestaltet und angeordnet, daß er Kühlmedium aus dem Motor heraus in die Pumpe (2) hineinfördert. 5.3 the impeller is designed and arranged in such a way that it conveys cooling medium out of the motor into the pump (2).
EP01917112A 2000-03-29 2001-03-23 Motor-pump unit Expired - Lifetime EP1181453B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10015139A DE10015139A1 (en) 2000-03-29 2000-03-29 Motor pump unit
DE10015139 2000-03-29
PCT/EP2001/003357 WO2001073295A1 (en) 2000-03-29 2001-03-23 Motor-pump unit

Publications (2)

Publication Number Publication Date
EP1181453A1 true EP1181453A1 (en) 2002-02-27
EP1181453B1 EP1181453B1 (en) 2003-01-08

Family

ID=7636539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01917112A Expired - Lifetime EP1181453B1 (en) 2000-03-29 2001-03-23 Motor-pump unit

Country Status (10)

Country Link
US (1) US6585498B2 (en)
EP (1) EP1181453B1 (en)
JP (1) JP5047439B2 (en)
KR (1) KR20020024590A (en)
AT (1) ATE230822T1 (en)
AU (1) AU4422201A (en)
DE (2) DE10015139A1 (en)
DK (1) DK1181453T3 (en)
ES (1) ES2189781T3 (en)
WO (1) WO2001073295A1 (en)

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Also Published As

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DE50100082D1 (en) 2003-02-13
US6585498B2 (en) 2003-07-01
DK1181453T3 (en) 2003-05-05
JP2003529019A (en) 2003-09-30
AU4422201A (en) 2001-10-08
KR20020024590A (en) 2002-03-30
EP1181453B1 (en) 2003-01-08
ATE230822T1 (en) 2003-01-15
JP5047439B2 (en) 2012-10-10
WO2001073295A1 (en) 2001-10-04
DE10015139A1 (en) 2001-10-11
US20020172605A1 (en) 2002-11-21
ES2189781T3 (en) 2003-07-16

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