EP1536139A1 - Pump unit with a gear pump and an electric motor - Google Patents
Pump unit with a gear pump and an electric motor Download PDFInfo
- 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
Links
Images
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)
Abstract
Description
Die Erfindung betrifft ein Pumpenaggregat, welches eine Zahnradpumpe und einen Elektromotor in einem gemeinsamen Gehäuse aufweist.The invention relates to a pump unit which a gear pump and having an electric motor in a common housing.
Ein solches Pumpenaggregat wird auch als Motorpumpe oder
Motorpumpenaggregat bezeichnet. Ein Motorpumpenaggregat, welches die im
Oberbegriff von Anspruch 1 zusammengefassten Merkmale aufweist, wird durch
die Offenlegungsschrift DE 100 15 139 A1 beschrieben und ist zum besseren
Verständnis der vorliegenden Erfindung in der Figur 1 gezeigt. Diese wird im
Nachfolgenden im einzelnen erläutert: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
Das Motorpumpenaggregat umfasst einen Elektromotor 1 mit einem Rotor 1.1 und
einem Stator 1.2. Der Stator 1.2 weist ein Statorblechpaket 1.2.1 und eine
Wicklung 1.2.2 auf. Der Rotor 1.1 weist eine Topfform auf und ist im Axialschnitt
gesehen U-förmig.The motor pump unit comprises an
Radial innerhalb des Rotors 1.1 und des Stators 1.2 ist eine Pumpe 2 angeordnet.
Wie man sieht, wird diese Pumpe 2 von dem Rotor 1.1 beziehungsweise dem
Stator 1.2 des Elektromotors 1 vollständig umschlossen.Radially inside the rotor 1.1 and the stator 1.2, a
Um eine Triebverbindung zwischen dem Rotor 1.1 und der Pumpenwelle 2.1
herzustellen, weist der Steg 1.1.1 des Rotors 1 eine Bohrung mit einer
Innenverzahnung auf, welche mit einer Außenverzahnung der Pumpenwelle 2.1
kämmt. Die Pumpenwelle 2.1 trägt ein Ritzel 2.2, welches mit einem
innenverzahnten Hohlrad 2.3 kämmt, das exzentrisch zu dem Ritzel 2.2 innerhalb
des Rotors 1.1 des Elektromotors 1 angeordnet ist. Axial beidseitig des Hohlrades
2.3 sind Seitenscheiben 2.4 und 2.5 der Pumpe 2 angeordnet, in welchen die
Pumpenwelle 2.1 durch Gleitlager 2.4.1 und 2.5.1 drehbar gelagert ist. To a drive connection between the rotor 1.1 and the pump shaft 2.1
produce, the web 1.1.1 of the
Zum Zuführen des Pumpmediums ist ein Pumpmediumeinlass 5 in einer Stirnseite
des Gehäuses 4 vorgesehen. Zum Abführen des Pumpmediums ist ein
Pumpmediumauslass 6 in derselben Stirnseite des Gehäuses vorgesehen.For supplying the pumping medium is a
DE 1 553 116 A beschreibt einen Elektromotor und eine Ölförderpumpe. Der Rotor
des Motors und das Laufrad der Pumpe sitzen auf einer gemeinsamen Welle. Die
Welle ist beidseits des Rotors in zwei Lagern gelagert.
Die gezeigte Ausführung hat sich zwar als leicht herstellbar und kompakt erwiesen. Man hat jedoch festgestellt, dass bei bestimmten Pumpendaten, zum Beispiel bei einem kleinen Fördervolumen und einem niedrigen Druck, das Verhältnis Motorabmessungen zu Pumpenabmessungen ungünstig ist.The embodiment shown has indeed easy to manufacture and compact proved. However, it has been found that for certain pump data, for Example with a small delivery volume and a low pressure, the Ratio of motor dimensions to pump dimensions is unfavorable.
Der Erfindung liegt die Aufgabe zugrunde, eine Motor-Pumpeneinheit der eingangs beschriebenen Art derart weiterzuentwickeln, dass auch bei kleinem Fördervolumen und niedrigem Druck ein optimales und somit kostengünstiges Bauvolumen erreicht wird.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.
Die erfindungsgemäße Aufgabe wird durch ein Pumpenaggregat mit den
Merkmalen des Anspruchs 1 gelöst. Die Unteransprüche beschreiben besonders
vorteilhafte Weiterbildungen der Erfindung.The object of the invention is achieved by a pump unit with the
Characteristics of
Die erfindungsgemäße Lösung beruht auf der Erkenntnis des Erfinders, dass das unzureichende Bauvolumen im wesentlichen durch ein ungünstiges Verhältnis von Motordurchmesser zur Motorlänge verursacht wird. Dementsprechend hat der Erfinder die bekannte Ausführung der Pumpe derart weiterentwickelt, dass das Verhältnis von Motordurchmesser und Motorlänge kleiner ausgeführt werden kann. Diese Möglichkeit wird bei dem erfindungsgemäßen Pumpenaggregat dadurch sichergestellt, dass der Rotor des Elektromotors stirnseitig zu dem Ritzel und dem Hohlrad der Pumpe angeordnet ist. Die Triebverbindung zwischen Elektromotor und Pumpe wird dadurch hergestellt, dass die Pumpe mit einer verlängerten Pumpenwelle ausgestattet ist, welche in den Rotor des Elektromotors hineinragt. Der Rotor des Elektromotors ist dabei auf einem Abschnitt der verlängerten Pumpenwelle vorzugsweise fliegend, drehstarr gelagert. Man könnte die Anordnung der Pumpe axial verschoben neben dem Rotor des Elektromotors auf einer gemeinsamen Welle auch als Tandembauweise bezeichnen.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.
Durch die erfindungsgemäße Ausführung können viele Vorteile erreicht beziehungsweise beibehalten werden, wie zum Beispiel der nur kleine erforderliche Bauraum des Pumpenaggregats, die Ausbildung des Motors und der Pumpe zu einer integralen Einheit, die Kühlung des Motors durch das Pumpmedium, welches insbesondere ein Hydrauliköl ist, die vergleichsweise hohe Schallpegelreduktion sowie die Möglichkeit, beide Einheiten, das heißt Pumpe und Motor, separat prüfen zu können. Insbesondere- ist das erfindungsgemäße Pumpenaggregat frei von jeglichen radialen Wellendichtringen, Lüftergeräuschen, Rollenlagern sowie gesonderten Pumpenträgern und elastischen Kupplungen.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. In particular, the invention is Pump unit free from any radial shaft seals, fan noise, Roller bearings as well as separate pump carriers and elastic couplings.
Besonders vorteilhaft ist der Rotor des Elektromotors über eine Mitnahmeverzahnung an seiner Stirnseite beziehungsweise im Bereich seiner Stirnseite drehstarr mit der Pumpenwelle verbunden. Dabei kommt insbesondere die Stirnseite des Rotors für die drehstarre Verbindung in Betracht, welche im Verhältnis zur Pumpe entfernt gelegen ist, das heißt, welche die von der Pumpe abgelegene Seite ist. Beispielsweise kann die Pumpenwelle mit einem Wellenzapfen versehen sein, der eine Außenverzahnung trägt, welche mit dem Rotor des Motors beziehungsweise einer im Rotor gelagerten Scheibe kämmt.Particularly advantageous is the rotor of the electric motor via a Mitnahmeverzahnung 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. For example, 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.
Eine besonders vorteilhafte Ausführungsform der Erfindung wird nachfolgend anhand der Figur 2 beschrieben.A particularly advantageous embodiment of the invention will be below described with reference to FIG.
Wie man sieht, ist gemäß dieser Ausführung die Pumpe 2 nicht mehr vollständig,
sondern nur noch teilweise innerhalb des Stators 1.2 des Elektromotors 1
angeordnet, und zwar ausschließlich innerhalb des einen axialen Endes der
Statorwicklung 1.2.2 und vollständig außerhalb des axialen Bereichs des
Statorblechpakets 1.2.1. As you can see, according to this embodiment, the
Die Welle 2.1 der Pumpe 2 weist zwei Abschnitte auf, einen ersten Abschnitt
2.1.1, welcher dem Rotor 1.1 des Elektromotors zugeordnet ist, und einen zweiten
Abschnitt 2.1.2, welcher der Pumpe 2 zugeordnet ist. Im Bereich 2.1.2 ist die
Pumpenwelle 2.1 innerhalb der Pumpe 2 gelagert, vorzugsweise durch die
Gleitlager 2.4.1 und 2.5.1 auf beiden Seiten des durch die Pumpenwelle 2.1
getragenen Ritzels 2.2. Der Bereich 2.1.1 der Pumpenwelle 2.1, welcher mit
einem vergleichsweise kleineren Durchmesser als der Bereich 2.1.2 ausgebildet
ist, wird vollständig durch den hohlzylinderförmigen Rotor 1.1 umschlossen und
trägt den Rotor 1.1, beispielsweise durch die gezeigten Abstandsstücke
beziehungsweise Abstandshülsen 8 und 9. Der Rotor 1.1 des Elektromotors 1 ist
somit fliegend auf der Pumpenwelle 2.1 gelagert.The shaft 2.1 of the
Wie man sieht, ist die Pumpenwelle 2.1 in zwei Scheiben 20, 21 gelagert, zwischen denen sich das Ritzel 2.2 befindet. Der Wellenabschnitt 2.1.1 hat vorzugsweise einen kleineren Durchmesser, als die Pumpenwelle 2.1 im Bereich der Scheiben 20 und 21, zumindest im Bereich der Scheibe 21, oder einen höchstens gleich großen Durchmesser. Dieses ist aus Montagegründen notwendig. Bei der Montage wird nämlich die Scheibe 21 von rechts her auf den Wellenabschnitt 2.1.1 aufgeschoben, und dann auf den rechten Abschnitt der Pumpenwelle 2.1.As can be seen, 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.
Die drehstarre Verbindung zwischen Rotor 1.1 und Pumpenwelle 2.1 wird durch
eine drehfeste Verbindung 7 hergestellt. Diese ist als Außenverzahnung auf einem
Achszapfen an dem Ende der Pumpenwelle 2.1 ausgebildet, welches dem
pumpenseitigen Ende gegenüberliegt. Auf diesem Achszapfen, welcher den
kleinsten Durchmesser der Pumpenwelle 2.1 aufweist, ist eine Mitnahmescheibe
10 mit einer Innenverzahnung oder Passfedermitnahme aufgeschoben, welche in
einem mechanischen Eingriff mit dem Rotor 1.1 steht. Dadurch, dass die
Innenverzahnung der Mitnahmescheibe 10 und die Außenverzahnung des
Achszapfens miteinander kämmen, wird die Antriebsleistung des Rotors 1.1 auf
die Pumpenwelle 2.1 und damit auf das Ritzel 2.2 und das zu diesem exzentrische
Hohlrad 2.3 übertragen. The torsionally rigid connection between the rotor 1.1 and pump shaft 2.1 is through
made a
Die Leitung des Pumpmediums durch das Gehäuse 4 ist durch die Pfeile
dargestellt. Wie man sieht, tritt das Pumpmedium durch einen
Pumpmediumeinlass 5 in einer ersten Stirnseite 4.1 des Gehäuses 4 in axialer
Richtung ein, verteilt sich in Umfangsrichtung in einem Ringkanal 11, welcher das
erste Ende der Wicklung 1.2.2 des Stators 1.2 umschließt, und strömt
anschließend in axialer Richtung entlang des Stators 1.2 durch einen Ringspalt
zwischen dem Stator 1.2 und dem Rotor 1.1. Zusätzlich sind radial innerhalb des
Ringspaltes Axialbohrungen 12 im Rotor 1.1 vorgesehen, durch welche das
Pumpmedium durchgeleitet wird. Nachdem das Pumpmedium axial durch den
Rotor 1.1 hindurchgetreten ist, strömt es in einen zweiten Ringkanal 13 auf der
anderen Seite des Rotors 1.1, welcher das zweite axiale Ende der Wicklung 1.2.2
und die Pumpe 2 umschließt.The line of the pumping medium through the
Aus diesem zweiten Ringkanal 13 wird das Pumpmedium in die Pumpe 2 geleitet,
dort durch die Zahnradpumpe, das heißt den kämmenden Eingriff des Ritzels 2.2
in dem innenverzahnten Hohlrad 2.3, verdichtet und axial durch den
Pumpmediumauslass 6 aus dem Gehäuse 4 heraus gefördert.From this second
Claims (2)
gekennzeichnet durch die folgenden Merkmale:
characterized by the following features:
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10354312 | 2003-11-20 | ||
DE10354312A DE10354312A1 (en) | 2003-11-20 | 2003-11-20 | Pump unit with a gear pump and an electric motor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1536139A1 true EP1536139A1 (en) | 2005-06-01 |
EP1536139B1 EP1536139B1 (en) | 2006-03-01 |
Family
ID=34442269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04018790A Expired - Lifetime EP1536139B1 (en) | 2003-11-20 | 2004-08-07 | Pump unit with a gear pump and an electric motor |
Country Status (3)
Country | Link |
---|---|
US (1) | US7367787B2 (en) |
EP (1) | EP1536139B1 (en) |
DE (2) | DE10354312A1 (en) |
Cited By (1)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009018759A1 (en) * | 2009-04-27 | 2010-10-28 | Continental Automotive Gmbh | Pump-motor device for use in motor vehicle, has drive shaft rotatably supported in region of pump by two bearings, where drive shaft carries rotor of electric motor enclosed by stator on bearing region freely projecting into region of motor |
US20110017848A1 (en) * | 2009-07-23 | 2011-01-27 | Keith Carl A | Sprayer technology |
JP4896201B2 (en) * | 2009-10-26 | 2012-03-14 | 三菱電機株式会社 | Fuel supply device |
DE202015105244U1 (en) * | 2015-10-05 | 2017-01-09 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Pump-motor unit |
DE102015015863A1 (en) * | 2015-12-09 | 2017-06-14 | Fte Automotive Gmbh | Electric motor driven liquid pump |
DE102020122867A1 (en) * | 2020-09-01 | 2022-03-03 | Schwäbische Hüttenwerke Automotive GmbH | Pump-motor unit with integrated housing cover |
US11990819B2 (en) | 2020-11-24 | 2024-05-21 | Bosch Rexroth Corporation | Electric and hydraulic machine |
DE102022128264A1 (en) * | 2022-10-25 | 2024-04-25 | Valeo Powertrain Gmbh | Gear pump |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0578390A1 (en) * | 1992-06-17 | 1994-01-12 | Vickers Incorporated | An integrated electric motor-driven inline hydraulic apparatus |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1553116B2 (en) * | 1966-10-25 | 1971-07-15 | Licentia Patent Verwaltungs GmbH, 6000 Frankfurt | Electric motor-operated gear oil pump |
DE1638188B1 (en) * | 1967-05-09 | 1971-05-06 | Danfoss As | ELECTRIC MOTOR DRIVEN PUMP FOR OIL BURNER |
-
2003
- 2003-11-20 DE DE10354312A patent/DE10354312A1/en not_active Withdrawn
-
2004
- 2004-08-07 EP EP04018790A patent/EP1536139B1/en not_active Expired - Lifetime
- 2004-08-07 DE DE502004000320T patent/DE502004000320D1/en not_active Expired - Lifetime
- 2004-11-18 US US10/991,741 patent/US7367787B2/en not_active Expired - Fee Related
Patent Citations (3)
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 (en) * | 1992-06-17 | 1994-01-12 | Vickers Incorporated | An integrated electric motor-driven inline hydraulic apparatus |
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)
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 |
---|---|
EP1536139B1 (en) | 2006-03-01 |
US7367787B2 (en) | 2008-05-06 |
US20050152790A1 (en) | 2005-07-14 |
DE502004000320D1 (en) | 2006-04-27 |
DE10354312A1 (en) | 2005-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1181453B1 (en) | Motor-pump unit | |
EP3535496A1 (en) | Electric gerotor pump and method for producing same | |
EP0248104B1 (en) | Rotary pump | |
EP1443210B1 (en) | Motor-pump unit | |
EP2914812A2 (en) | Rotary piston pump having direct drive | |
EP1536139B1 (en) | Pump unit with a gear pump and an electric motor | |
EP1182027B1 (en) | Drive for extrusion apparatus | |
EP2160965A1 (en) | Eccentric screw pump | |
DE102005050737B3 (en) | Motor-pump unit including electric motor and pump formed within same housing for conveying liquid, gas or other pumping medium | |
DE3202993A1 (en) | TURNING PISTON | |
DE102021207694A1 (en) | Lubricant supply system for a motor vehicle and pump for such a lubricant supply system | |
DE102018220811A1 (en) | Device for conveying a cooling fluid | |
DE102019118708A1 (en) | Pressure supply device with a gear pump | |
EP1474591B1 (en) | Compressed air motor | |
DE19650274A1 (en) | Pump assembly for motor driven radial or series piston pump | |
DE102005029967A1 (en) | Dual clutch transmission of vehicle, comprises pump unit attached to second part of clutch housing | |
EP1526282B1 (en) | Motor-pump unit | |
DE102016118428A1 (en) | cycloidal drive | |
EP1413757A2 (en) | Assembly of a motor and a pump | |
DE202014006761U1 (en) | Hydrostatic rotary piston engine according to the orbit principle | |
DE102008023597A1 (en) | Drive unit for use in fresh air inlet of auxiliary equipment e.g. climatic compressor of fuel cell in motor vehicle, has planetary transmission comprising hollow wheel that forms rotor of electric drive | |
DE202019107191U1 (en) | Pressure supply device with a gear pump | |
EP1802870B1 (en) | Centrifugal pump | |
DE202022002619U1 (en) | Hydrostatic rotary piston machine | |
DE20022605U1 (en) | Extrusion device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20050304 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AKX | Designation fees paid |
Designated state(s): CH DE FR GB LI |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB LI |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20060301 |
|
REF | Corresponds to: |
Ref document number: 502004000320 Country of ref document: DE Date of ref document: 20060427 Kind code of ref document: P |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20061204 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20080822 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080826 Year of fee payment: 5 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090807 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090807 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20110822 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20110907 Year of fee payment: 8 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120831 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130301 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502004000320 Country of ref document: DE Effective date: 20130301 |