EP3320210A1 - Hydraulic unit - Google Patents

Hydraulic unit

Info

Publication number
EP3320210A1
EP3320210A1 EP16728838.0A EP16728838A EP3320210A1 EP 3320210 A1 EP3320210 A1 EP 3320210A1 EP 16728838 A EP16728838 A EP 16728838A EP 3320210 A1 EP3320210 A1 EP 3320210A1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
structural unit
tank
further structural
hydraulic pump
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
EP16728838.0A
Other languages
German (de)
French (fr)
Other versions
EP3320210B1 (en
Inventor
Andreas Böhler
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.)
Hydac Fluidtechnik GmbH
Original Assignee
Hydac Fluidtechnik 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 Hydac Fluidtechnik GmbH filed Critical Hydac Fluidtechnik GmbH
Publication of EP3320210A1 publication Critical patent/EP3320210A1/en
Application granted granted Critical
Publication of EP3320210B1 publication Critical patent/EP3320210B1/en
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
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • 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
    • F04B23/02—Pumping installations or systems having reservoirs
    • F04B23/021—Pumping installations or systems having reservoirs the pump being immersed in the reservoir
    • F04B23/023—Pumping installations or systems having reservoirs the pump being immersed in the reservoir only the pump-part being immersed, the driving-part being outside the reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26—Supply reservoir or sump assemblies

Definitions

  • the invention relates to a hydraulic unit, in particular for the supply of conveying and lifting equipment with hydraulic fluid, with respect to a device main axis end located tank and attached to this functional components, which consist of at least one hydraulic pump and a connector body and an electric motor for driving the hydraulic pump.
  • connection body for the electric motor and for the hydraulic pump forms a support flange in the form of a rectangular block.
  • fluid connections for hydraulic connections and hydraulic components are formed in the connection body. Because of the carrier function for both electric motor and hydraulic pump is forced to make the connection body, instead of a plastic material, from a resilient metallic material.
  • the dual function of the connection body as a load-bearing carrier for motor and hydraulic pump on the one hand and as a hydraulic component with fluid guides and hydraulic connections on the other hand leads to a complex shape of the connection body and thus to a correspondingly high production cost.
  • the invention has the object to provide a hydraulic unit of the type mentioned, which is simple and rational producible with reduced production costs.
  • connection body is composed of at least one structural unit and at least one further structural unit, wherein the one structural unit is at least partially received in the further structural unit.
  • the one structural unit of the connection body as a carrying device can have a fastening component for fixing both the electric motor and the hydraulic pump, which are mounted on opposite lying sides of the connecting body are arranged.
  • This structural unit, which serves as a carrying device can have bores or threaded bores as a fastening component for forming screw connections with an electric motor and a hydraulic pump.
  • the further structural unit of the connector body can close the free upper tank opening in the manner of a container or tank lid, at least at the edge, wherein the hydraulic pump is received by the tank interior and the electric motor is located on the other side of the connector body.
  • connection body of a metal material, preferably made of an aluminum material as die-cast or forged, wherein the further structural unit of a plastic material, preferably of a glass fiber reinforced polyamide material consists.
  • the connection body has an advantageous, damping effect.
  • this makes it possible to achieve a lightweight construction in which it is possible to achieve a weight saving of approximately 50%, if, for example, 2/3 of the connection body is made of plastic.
  • the support device in addition to the fastening component a receiving component for fixing further functional components, such as a valve device having.
  • a valve device having.
  • connections for a switching valve controlling the hydraulic output and / or a check valve it is possible to provide connections for a switching valve controlling the hydraulic output and / or a check valve.
  • the carrying device is accommodated in the further structural unit in such a way that a continuous opening in the connecting body is created, which allows the passage of drive means between the electric motor and the hydraulic pump.
  • the Closure body can thereby form the implementation of a drive shaft for the direct drive of the inside of the tank located hydraulic pump.
  • the arrangement can be made with particular advantage so that the support means the continuous opening with its fastening component in a concentric arrangement to this at least partially arcuate limited or completely includes the opening.
  • the carrier device can have at least one engagement lug at the end of its arcuate part of its fastening component in a particularly advantageous manner, the engagement lug engaging in a fixable recess of the further structural unit to form a positioning.
  • the carrying device between the fastening component and a hydraulic receiving component can have a connecting web which is accommodated in a tank-side closed receiving channel of the further structural unit of the receiving body. Due to the lack of connection of the receiving channel to the tank interior, the function of the further structural unit remains as a tank lid.
  • the support means is received flush in the further structural unit in the direction of the electric motor, wherein the further structural unit forms a plate-like cover body for the completion of the tank and has a closable ventilation opening for the tank interior.
  • the further structural unit may extend as a final part over the entire facing side of the tank.
  • FIG. 2 in relation to FIG. 1 enlarged drawn perspective
  • a hydraulic unit which, as far as the general construction is concerned, corresponds to the prior art disclosed in the already mentioned document DE 10 2008 030 71 5 A1.
  • a hydraulic unit which is intended in particular for the supply of lifting cylinders in preferably mobile equipment, such as conveyors and hoists, which are electrically driven.
  • functional components such as hydraulic pump 1, the driving electric motor 3 and a connector body 5 directly to a supply of pressurized fluid receiving tank. 7 grown. This is located at one end of a device main axis 9, in the example shown in Fig.
  • connection body 5 is located between the located at the upper end of the main axis 9 electric motor 3 and the hydraulic pump 1, which is received in the assembled state in the interior of the tank 7.
  • the connection body 5 is formed by a composite body composed of two structural units 1 1 and 13, wherein the first structural unit 1 1 forms a support device on which both the electric motor 3 and the hydraulic pump 1 are flanged, while the second structural unit 13 forms a kind of tank lid for the open side of the tank 7.
  • the support means for electric motor 3 and hydraulic pump 1 forming structural unit 1 1 is shown separately.
  • Fig. 3 shows, also in a separate representation, the second structural unit 13 of the connection body 5, which as a one-piece injection-molded plastic part, in the present example of a glass fiber reinforced polyamide material, such as PA6.6 exists.
  • the structural unit 1 3 has a free top opening of the tank 9 corresponding rectangular outline with rounded corners 1 5, wherein in the vicinity of a corner region has a through hole 1 7 for a Tankbelricher 19 (see Fig. 1) is provided, which may have a ventilation filter.
  • the second structural unit 13 Coaxially to the device main axis 9, the second structural unit 13 has an opening 21, which allows the passage of the drive means from the electric motor 3 to the hydraulic pump 1.
  • the motor shaft of the electric motor 3 which is not visible in FIG. 1, is provided for this purpose.
  • the support unit forming structural unit 1 1, which forms the support for both the top of the electric motor 3 and for the hydraulic pump 1, which is arranged below the tank forming the second structural unit 13 is formed by a metallic molded body, in the embodiment in Shape of a forged part made of aluminum minium.
  • the structural unit 1 1 has, as a fastening component for the electric motor 3 and hydraulic pump 1, a semicircular arch part 23, at the free end of which a nose part 25 extending radially to the arch part 23 follows. At the opposite end of the arch part 23 passes into a connecting web 27, at its in Fig. 2 right-hand end, in turn, a hydraulic receiving component 29 connects. As a seat for the arch part 23, an arcuate recess 31 is formed in the structural unit 13, which surrounds the central opening 21 and merges into an end part 21 radial to the opening 21, which receives the nose part 25.
  • screw holes 35, 37, 39, 41 are provided in the bow part 23, in the nose part 25 and in the connecting web 27, of which the holes 35 and 39 are the Motor attachment and the holes 37 and 41 of the pump attachment serve by means of continuous screws, which are not shown in Fig. 1.
  • associated holes 45, 47 and 49 are formed in the recesses 31 and 33 of the structural unit.
  • a recessed, adjoining the recess 31 receiving channel 51 in the second structural unit 1 3 is formed.
  • the receiving channel 51 extends with the bottom closed 53 to the adjacent outer edge of the structural unit 1 third
  • the receiving component 29 of the first structural unit 1 1 forming the carrying device protrudes beyond the outer edge at the end of the receiving channel 51, so that hydraulic connections 55, 57 and 59 are freely accessible laterally on the aggregate, with the connections 55 and 57, for example hydraulic components such as switching valve 61 ( Figure 1), check valve, pressure sensor or the like may be associated.
  • Internal fluid paths 63 in the receiving component 29 are connected to a hydraulic input 65 located on the underside of the connecting web 27, which in the state flanged to the hydraulic pump 1 is in communication with the pressure-side outlet of the hydraulic pump 1.
  • connection body 5 of two structural units 1 1 and 13 simplifies the production, because only the structural unit forming the support means 1 1 must be made as a metal part in machining, for example, an aluminum forged part.
  • the connection body 5 is thereby realized with a predominant proportion of plastic with a lightweight construction weight.
  • the invention also makes it possible to construct a [nodular system in which an identically designed structural unit 1 3 made of plastic with a metal inlay adapted to the respective hydraulic requirements and correspondingly designed is used as a carrying device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

A hydraulic unit, in particular for supplying pressurized liquid to conveying and lifting mechanisms, comprising a tank (7) that is located at the end in relation to a main device axis (9), and functional components that are mounted on the tank (7) and consist in at least one hydraulic pump (1), a connecting element (5) and an electric motor (3) for driving the hydraulic pump (1), is characterized in that the connecting element (5) is composed of at least one structural unit (11) and at least one other structural device (13) and in that at least part of the one structural unit (11) is accommodated in the other structural device (13).

Description

Hydraulikaggregat  hydraulic power unit
Die Erfindung betrifft ein Hydraulikaggregat, insbesondere für die Versorgung von Förder- und Hebezeugen mit Druckflüssigkeit, mit einem bezüglich einer Vorrichtungshauptachse endseitig gelegenen Tank und an diesem angebauten Funktionskomponenten, die aus zumindest einer Hydropumpe und einem Anschlusskörper sowie einem Elektromotor zum Antrieb der Hydropumpe bestehen. The invention relates to a hydraulic unit, in particular for the supply of conveying and lifting equipment with hydraulic fluid, with respect to a device main axis end located tank and attached to this functional components, which consist of at least one hydraulic pump and a connector body and an electric motor for driving the hydraulic pump.
Hydraulikaggregate dieser Art sind bekannt. Das Dokument DE Hydraulic units of this type are known. The document DE
10 2008 030 71 5 AI zeigt als dem Anmeldungsgegenstand nächstkom- mendem Stand der Technik ein Hydraulikaggregat dieser Gattung. Bei derartigen Hydraulikaggregaten bildet der Anschlusskörper für den Elektromotor und für die Hydropumpe einen Trägerflansch in Form eines rechteckigen Blocks. Außerdem sind in dem Anschlusskörper Fluidverbindungen für Hydraulikanschlüsse und Hydraulikkomponenten, wie Ventile, Belüftungs- einrichtungen und dergleichen, ausgebildet. Wegen der Trägerfunktion sowohl für Elektromotor als auch Hydropumpe ist man gezwungen, den Anschlusskörper, anstelle aus einem Kunststoffmaterial, aus einem belastbaren metallischen Werkstoff herzustellen. Die Doppelfunktion des Anschlusskörpers als belastbarer Träger für Motor und Hydropumpe einerseits und als Hydraulikkomponente mit Fluidführungen und Hydraulikanschlüssen andererseits führt zu einer komplexen Formgebung des Anschlusskörpers und damit zu einem entsprechend hohen Herstellungsaufwand. Beispielsweise kommt eine einfache Herstellung aus Aluminium-Druckguss wegen der Gefahr der Lunkerbildung nicht in Betracht. Man ist daher gezwungen, ein Schmiedeteil zerspanend zu bearbeiten. Neben dem entsprechend hohen Aufwand ergeben sich auch hohe Materialkosten wegen des großen Anteils anfallenden Zerspanungsschrotts. 10 2008 030 71 5 AI shows as the subject of the application of the closest prior art a hydraulic unit of this type. In such hydraulic units, the connection body for the electric motor and for the hydraulic pump forms a support flange in the form of a rectangular block. In addition, fluid connections for hydraulic connections and hydraulic components, such as valves, ventilation devices and the like, are formed in the connection body. Because of the carrier function for both electric motor and hydraulic pump is forced to make the connection body, instead of a plastic material, from a resilient metallic material. The dual function of the connection body as a load-bearing carrier for motor and hydraulic pump on the one hand and as a hydraulic component with fluid guides and hydraulic connections on the other hand leads to a complex shape of the connection body and thus to a correspondingly high production cost. For example a simple production of die-cast aluminum because of the risk of voids formation is out of the question. One is therefore forced to machine a forging machined. In addition to the correspondingly high expenditure, high material costs also result because of the large proportion of chipped scrap.
Im Hinblick auf diese Problematik stellt sich die Erfindung die Aufgabe, ein Hydraulikaggregat der eingangs genannten Gattung zur Verfügung zu stellen, das mit verringertem Fertigungsaufwand einfach und rationell herstell- bar ist. In view of this problem, the invention has the object to provide a hydraulic unit of the type mentioned, which is simple and rational producible with reduced production costs.
Gemäß dem kennzeichnenden Teil des Anspruchs 1 besteht eine wesentliche Besonderheit der Erfindung darin, dass der Anschlusskörper aus mindestens einer Struktureinheit und aus mindestens einer weiteren Struktur- einheit zusammengesetzt ist, wobei die eine Struktureinheit zumindest teilweise in der weiteren Struktureinheit aufgenommen ist. Dadurch, dass dergestalt anstelle eines einstückig ausgebildeten Anschlusskörpers ein Verbund aus zusammengesetzten Struktureinheiten vorgesehen ist, lassen sich unterschiedliche, vom Anschlusskörper zu erfüllende Funktionen unter- schiedlichen Bauteilen zuordnen, die jeweils eine eigene Struktureinheit eines Verbundkörpers bilden. Dadurch eröffnet sich die Möglichkeit, lediglich diejenige Struktureinheit, die den hohen mechanischen Belastungen ausgesetzt ist und/oder die hydraulischen Leitungen und Einbauräume enthält, durch spanende Bearbeitung aus einem metallischen Werkstoff herzu- stellen, während eine jeweilige weitere, geringerer Belastung ausgesetzte Struktureinheit, beispielsweise in Form einer Abdeckeinheit, beispielsweise durch Spritzformen, vereinfacht herstellbar ist. According to the characterizing part of claim 1, an essential feature of the invention is that the connection body is composed of at least one structural unit and at least one further structural unit, wherein the one structural unit is at least partially received in the further structural unit. By providing a composite of composite structural units instead of an integrally formed connector body, different functions to be performed by the connector body can be assigned to different components, each of which forms its own structural unit of a composite body. This opens up the possibility of producing only a structural unit which is exposed to the high mechanical loads and / or hydraulic lines and installation spaces by machining from a metallic material, while a respective further structural unit exposed to a lower load, for example in Shape of a cover unit, for example by injection molding, can be produced in a simplified manner.
In vorteilhafter Weise kann die eine Struktureinheit des Anschlusskörpers als Trageinrichtung eine Befestigungskomponente zum Festlegen sowohl des Elektromotors als auch der Hydropumpe aufweisen, die auf gegenüber- liegenden Seiten des Anschlusskörpers angeordnet sind. Diese als Trageinrichtung dienende Struktureinheit kann als Befestigungskomponente Bohrungen oder Gewindebohrungen zur Bildung von Verschraubungen mit Elektromotor und Hydropumpe aufweisen. Advantageously, the one structural unit of the connection body as a carrying device can have a fastening component for fixing both the electric motor and the hydraulic pump, which are mounted on opposite lying sides of the connecting body are arranged. This structural unit, which serves as a carrying device, can have bores or threaded bores as a fastening component for forming screw connections with an electric motor and a hydraulic pump.
Mit besonderem Vorteil kann die weitere Struktureinheit des Anschlusskörpers die freie obere Tanköffnung in der Art eines Behälter- oder Tankdeckels zumindest randseitig abschließen, wobei die Hydropumpe vom Tankinneren aufgenommen ist und sich der Elektromotor auf der anderen Seite des Anschlusskörpers befindet. With particular advantage, the further structural unit of the connector body can close the free upper tank opening in the manner of a container or tank lid, at least at the edge, wherein the hydraulic pump is received by the tank interior and the electric motor is located on the other side of the connector body.
Mit besonderem Vorteil kann die Trageinrichtung des Anschlusskörpers aus einem Metallmaterial, vorzugsweise aus einem Aluminiummaterial als Druckguss- oder Schmiedeteil hergestellt sein, wobei die weitere Struktur- einheit aus einem Kunststoffmaterial, vorzugsweise aus einem glasfaserverstärkten Polyamidmaterial, besteht. Bei einem derartigen Kunststoff- Metallverbund hat der Anschlusskörper eine vorteilhafte, dämpfende Wirkung. Zudem ist dadurch eine Leichtbauweise realisierbar, bei der etwa 50 % Gewichtseinsparung erreichbar ist, wenn beispielsweise 2/3 des An- schlusskörpers aus Kunststoff bestehen. With particular advantage, the support means of the connection body of a metal material, preferably made of an aluminum material as die-cast or forged, wherein the further structural unit of a plastic material, preferably of a glass fiber reinforced polyamide material consists. In such a plastic-metal composite, the connection body has an advantageous, damping effect. In addition, this makes it possible to achieve a lightweight construction in which it is possible to achieve a weight saving of approximately 50%, if, for example, 2/3 of the connection body is made of plastic.
Mit Vorteil kann die Trageinrichtung neben der Befestigungskomponente eine Aufnahmekomponente zum Festlegen weiterer Funktionskomponenten, wie einer Ventileinrichtung, aufweisen. Diesbezüglich können An- Schlüsse für ein den Hydraulikausgang steuerndes Schaltventil und/oder ein Rückschlagventil vorgesehen sein. Advantageously, the support device in addition to the fastening component a receiving component for fixing further functional components, such as a valve device having. In this regard, it is possible to provide connections for a switching valve controlling the hydraulic output and / or a check valve.
Bei besonders vorteilhaften Ausführungsbeispielen ist die Trageinrichtung in der weiteren Struktureinheit derart aufgenommen, dass eine durchgehende Öffnung im Anschlussköper geschaffen ist, die den Durchgriff von Antriebsmitteln zwischen Elektromotor und Hydropumpe erlaubt. Der An- Schlusskörper kann dadurch die Durchführung einer Antriebswelle für den Direktantrieb der im Tankinneren befindlichen Hydropumpe bilden. In particularly advantageous embodiments, the carrying device is accommodated in the further structural unit in such a way that a continuous opening in the connecting body is created, which allows the passage of drive means between the electric motor and the hydraulic pump. The Closure body can thereby form the implementation of a drive shaft for the direct drive of the inside of the tank located hydraulic pump.
Dabei kann die Anordnung mit besonderem Vorteil so getroffen sein, dass die Trageinrichtung die durchgehende Öffnung mit ihrer Befestigungskomponente in konzentrischer Anordnung zu dieser zumindest teilweise bogenförmig begrenzt oder die Öffnung vollständig umfasst. In this case, the arrangement can be made with particular advantage so that the support means the continuous opening with its fastening component in a concentric arrangement to this at least partially arcuate limited or completely includes the opening.
Als in die weitere Struktureinheit integriertes Bauteil kann die Trageinrich- tung in besonders vorteilhafter Weise mindestens eine Eingriffsnase am Ende ihres bogenförmigen Teils ihrer Befestigungskomponente aufweisen, wobei die Eingriffsnase in eine zuordenbare Ausnehmung der weiteren Struktureinheit unter Bildung einer Positionierung fixierend eingreift. Ferner kann die Trageinrichtung zwischen Befestigungskomponente und einer hydraulischen Aufnahmekomponente einen Verbindungssteg aufweisen, der in einem tankseitig geschlossenen Aufnahmekanal der weiteren Struktureinheit des Aufnahmekörpers aufgenommen ist. Durch die fehlende Verbindung des Aufnahmekanals zum Tankinneren bleibt die Funktion der weiteren Struktureinheit als Tankdeckel erhalten. As a component integrated into the further structural unit, the carrier device can have at least one engagement lug at the end of its arcuate part of its fastening component in a particularly advantageous manner, the engagement lug engaging in a fixable recess of the further structural unit to form a positioning. Furthermore, the carrying device between the fastening component and a hydraulic receiving component can have a connecting web which is accommodated in a tank-side closed receiving channel of the further structural unit of the receiving body. Due to the lack of connection of the receiving channel to the tank interior, the function of the further structural unit remains as a tank lid.
Mit besonderem Vorteil ist die Trageinrichtung in der weiteren Struktureinheit in Richtung des Elektromotors bündig aufgenommen, wobei die weitere Struktureinheit einen plattenartigen Abdeckkörper für den Abschluss des Tanks ausbildet und eine verschließbare Belüftungsöffnung für das Tankinnere aufweist. Als plattenartiger Abdeckkörper kann sich die weitere Struktureinheit als Abschlussteil über die gesamte zugewandte Seite des Tanks erstrecken. Nachstehend ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels im Einzelnen erläutert. Es zeigen: in explosionsartig auseinandergezogener Darstellung eine perspektivische Schrägansicht des Ausführungsbeispiels des erfindungsgemäßen Hydraulikaggregats; With particular advantage, the support means is received flush in the further structural unit in the direction of the electric motor, wherein the further structural unit forms a plate-like cover body for the completion of the tank and has a closable ventilation opening for the tank interior. As a plate-like cover body, the further structural unit may extend as a final part over the entire facing side of the tank. The invention with reference to an embodiment shown in the drawing is explained in detail. In exploded exploded view, an oblique perspective view of the embodiment of the hydraulic unit according to the invention;
Fig. 2 in gegenüber Fig. 1 vergrößert gezeichneter perspektivischer Fig. 2 in relation to FIG. 1 enlarged drawn perspective
Schrägansicht eine Trageinrichtung, die eine Struktureinheit des Anschlusskörpers des Ausführungsbeispiels bildet, und  An oblique view of a support device, which forms a structural unit of the connection body of the embodiment, and
Fig. 3 in der Fig. 2 entsprechendem Maßstab eine perspektivische Fig. 3 in Fig. 2 corresponding scale a perspective
Schrägansicht einer weiteren Struktureinheit als Bestandteil des Anschlusskörpers des Ausführungsbeispiels.  An oblique view of another structural unit as part of the connection body of the embodiment.
Mit Bezug auf die beigefügten Zeichnungen ist die Erfindung am Beispiel eines Hydraulikaggregats erläutert, das, was die allgemeine Bauweise anbelangt, dem in dem bereits genannten Dokument DE 10 2008 030 71 5 A1 offenbarten Stand der Technik entspricht. Hiermit insoweit übereinstimmend handelt es sich um ein Hydraulikaggregat, das insbesondere zur Versorgung von Hubzylindern bei vorzugsweise mobilen Arbeitsgerätschaften, wie Förder- und Hebezeugen, bestimmt ist, die elektrisch angetrieben sind. Um eine möglichst kompakte Bauweise zu erreichen, wie sie insbesondere bei mobilen Anwendungen anzustreben ist, wo wenig Einbauraum zur Verfügung steht, sind Funktionskomponenten, wie Hydropumpe 1 , der sie antreibende Elektromotor 3 sowie ein Anschlusskörper 5 unmittelbar an einem einen Vorrat an Druckflüssigkeit aufnehmenden Tank 7 angebaut. Dieser befindet sich an einem Ende einer Vorrichtungshauptachse 9, bei dem in Fig. 1 gezeigten Beispiel an dem unteren Ende der sich vertikal erstreckenden Hauptachse 9. Der Anschlusskörper 5 befindet sich zwischen dem am oberen Ende der Hauptachse 9 gelegenen Elektromotor 3 und der Hydropumpe 1 , die beim zusammengebauten Zustand im Inneren des Tanks 7 aufgenommen ist. Der Anschlusskörper 5 ist beim erfindungsgemäßen Hydraulikaggregat durch einen aus zwei Struktureinheiten 1 1 und 13 zusam- mengesetzten Verbundkörper gebildet, wobei die erste Struktureinheit 1 1 eine Trageinrichtung bildet, an der sowohl der Elektromotor 3 als auch die Hydropumpe 1 angeflanscht sind, während die zweite Struktureinheit 13 für die offene Seite des Tanks 7 eine Art Tankdeckel bildet. In Fig. 2 ist die die Trageinrichtung für Elektromotor 3 und Hydropumpe 1 bildende Struktureinheit 1 1 gesondert dargestellt. With reference to the accompanying drawings, the invention is explained using the example of a hydraulic unit, which, as far as the general construction is concerned, corresponds to the prior art disclosed in the already mentioned document DE 10 2008 030 71 5 A1. Hereby, to the extent consistent with this is a hydraulic unit, which is intended in particular for the supply of lifting cylinders in preferably mobile equipment, such as conveyors and hoists, which are electrically driven. In order to achieve a compact design, as is desirable in particular for mobile applications, where little installation space is available, functional components, such as hydraulic pump 1, the driving electric motor 3 and a connector body 5 directly to a supply of pressurized fluid receiving tank. 7 grown. This is located at one end of a device main axis 9, in the example shown in Fig. 1 at the lower end of the vertically extending main axis 9. The connecting body 5 is located between the located at the upper end of the main axis 9 electric motor 3 and the hydraulic pump 1, which is received in the assembled state in the interior of the tank 7. In the case of the hydraulic unit according to the invention, the connection body 5 is formed by a composite body composed of two structural units 1 1 and 13, wherein the first structural unit 1 1 forms a support device on which both the electric motor 3 and the hydraulic pump 1 are flanged, while the second structural unit 13 forms a kind of tank lid for the open side of the tank 7. In Fig. 2, the support means for electric motor 3 and hydraulic pump 1 forming structural unit 1 1 is shown separately.
Die Fig. 3 zeigt, ebenfalls in gesonderter Darstellung, die zweite Struktureinheit 13 des Anschlusskörpers 5, die als einteiliges spritzgeformtes Kunst- stoffteil, beim vorliegenden Beispiel aus einem glasfaserverstärkten Polyamidmaterial, wie PA6.6, besteht. Als eine Art Tankverschluss bildende Abdeckeinheit für die obere, offene Seite des Tanks 7 hat die Struktureinheit 1 3 einen der freien oberen Öffnung des Tanks 9 entsprechenden rechteckigen Umriss mit gerundeten Ecken 1 5, wobei in der Nähe eines Eckbereichs eine Durchgangsbohrung 1 7 für einen Tankbelüfter 19 (s. Fig. 1 ) vorgesehen ist, der ein Belüftungsfilter aufweisen kann. Koaxial zur Vorrichtungshauptachse 9 weist die zweite Struktureinheit 13 eine Öffnung 21 auf, die den Durchtritt der Antriebsmittel vom Elektromotor 3 zur Hydropumpe 1 ermöglicht. Für den Direktantrieb der Hydropumpe 1 ist hierfür die in Fig. 1 nicht sichtbare Motorwelle des Elektromotors 3 vorgesehen. Fig. 3 shows, also in a separate representation, the second structural unit 13 of the connection body 5, which as a one-piece injection-molded plastic part, in the present example of a glass fiber reinforced polyamide material, such as PA6.6 exists. As a kind of tank closure cover unit for the upper, open side of the tank 7, the structural unit 1 3 has a free top opening of the tank 9 corresponding rectangular outline with rounded corners 1 5, wherein in the vicinity of a corner region has a through hole 1 7 for a Tankbelüfter 19 (see Fig. 1) is provided, which may have a ventilation filter. Coaxially to the device main axis 9, the second structural unit 13 has an opening 21, which allows the passage of the drive means from the electric motor 3 to the hydraulic pump 1. For the direct drive of the hydraulic pump 1, the motor shaft of the electric motor 3, which is not visible in FIG. 1, is provided for this purpose.
Die die Trageinrichtung bildende Struktureinheit 1 1 , die den Träger sowohl für den an der Oberseite befindlichen Elektromotor 3 als auch für die Hydropumpe 1 bildet, die unterhalb der den Tankabschluss bildenden zweiten Struktureinheit 13 angeordnet ist, ist durch einen metallischen Formkörper gebildet, beim Ausführungsbeispiel in Form eines Schmiedeteils aus Alumi- nium. Für die Aufnahme der ersten, die Trageinrichtung bildenden Struktureinheit 1 1 weist die einen plattenartigen Kunststoffkörper bildende zweite Struktureinheit 13 in der Oberseite Vertiefungen auf, die sich an die zentrale Öffnung 21 anschließen und in Form und Tiefe so bemessen sind, dass die die Trageinrichtung bildende Struktureinheit 1 1 im gebildeten Sitz derart aufgenommen ist, dass die Trageinrichtung mit der dem Elektromotor 3 zugewandten Oberseite bündig ist. Die Struktureinheit 1 1 weist als Befestigungskomponente für Elektromotor 3 und Hydropumpe 1 ein halbkreisförmiges Bogenteil 23 auf, an dessen freies Ende sich ein zum Bogenteil 23 radial erstreckendes Nasenteil 25 anschließt. Am entgegengesetzten Ende geht das Bogenteil 23 in einen Verbindungssteg 27 über, an dessen in Fig. 2 rechtsseitig gelegenes Ende sich wiederum eine hydraulische Aufnahmekomponente 29 anschließt. Als Sitz für das Bogenteil 23 ist in der Struktureinheit 13 eine bogenförmige Vertiefung 31 gebildet, die die zentrale Öff- nung 21 umgibt und in einen zur Öffnung 21 radialen Endteil 33 übergeht, der das Nasenteil 25 aufnimmt. The support unit forming structural unit 1 1, which forms the support for both the top of the electric motor 3 and for the hydraulic pump 1, which is arranged below the tank forming the second structural unit 13 is formed by a metallic molded body, in the embodiment in Shape of a forged part made of aluminum minium. For receiving the first, the supporting device forming structural unit 1 1, the plate-like plastic body forming second structural unit 13 in the top recesses, which adjoin the central opening 21 and are dimensioned in shape and depth so that the supporting device forming structural unit 1 1 is received in the formed seat so that the support means with the electric motor 3 facing top is flush. The structural unit 1 1 has, as a fastening component for the electric motor 3 and hydraulic pump 1, a semicircular arch part 23, at the free end of which a nose part 25 extending radially to the arch part 23 follows. At the opposite end of the arch part 23 passes into a connecting web 27, at its in Fig. 2 right-hand end, in turn, a hydraulic receiving component 29 connects. As a seat for the arch part 23, an arcuate recess 31 is formed in the structural unit 13, which surrounds the central opening 21 and merges into an end part 21 radial to the opening 21, which receives the nose part 25.
Zur Befestigung von Elektromotor 3 und Hydropumpe 1 mittels Verschrau- bungen sind in der die Trageinrichtung bildenden Struktureinheit 1 1 im Bogenteil 23, im Nasenteil 25 sowie im Verbindungssteg 27 Schraubenlöcher 35, 37, 39, 41 vorgesehen, von denen die Löcher 35 und 39 der Motorbefestigung und die Löcher 37 und 41 der Pumpenbefestigung mittels durchgehender Schrauben dienen, die in Fig. 1 nicht dargestellt sind. Für den Durchtritt dieser Schrauben sind in den Vertiefungen 31 und 33 der Struktureinheit 13 zugeordnete Löcher 45, 47 und 49 gebildet. Für die Aufnahme des Verbindungssteges 27 ist ein vertiefter, sich an die Vertiefung 31 anschließender Aufnahmekanal 51 in der zweiten Struktureinheit 1 3 ausgebildet. Der Aufnahmekanal 51 erstreckt sich mit geschlossenem Boden 53 bis zum benachbarten Außenrand der Struktureinheit 1 3. Im zusammengebauten Zustand steht so die Aufnahmekomponente 29 der die Trageinrichtung bildenden ersten Struktureinheit 1 1 über den Außenrand am Ende des Aufnahmekanals 51 vor, so dass Hydraulikanschlüsse 55, 57 und 59 am Aggregat seitlich frei zugänglich sind, wobei den Anschlüs- sen 55 und 57 beispielsweise hydraulische Komponenten, wie Schaltventil 61 (Fig. 1 ), Rückschlagventil, Drucksensor oder dergleichen, zugeordnet sein können. Innere Fluidwege 63 in der Aufnahmekomponente 29 sind mit einem an der Unterseite des Verbindungssteges 27 befindlichen Hydraulikeingang 65 in Verbindung, der in dem an der Hydropumpe 1 angeflansch- ten Zustand mit dem druckseitigen Ausgang der Hydropumpe 1 in Verbindung ist. For fastening the electric motor 3 and hydraulic pump 1 by means of screw connections, screw holes 35, 37, 39, 41 are provided in the bow part 23, in the nose part 25 and in the connecting web 27, of which the holes 35 and 39 are the Motor attachment and the holes 37 and 41 of the pump attachment serve by means of continuous screws, which are not shown in Fig. 1. For the passage of these screws 13 associated holes 45, 47 and 49 are formed in the recesses 31 and 33 of the structural unit. For receiving the connecting web 27, a recessed, adjoining the recess 31 receiving channel 51 in the second structural unit 1 3 is formed. The receiving channel 51 extends with the bottom closed 53 to the adjacent outer edge of the structural unit 1 third In the assembled state, the receiving component 29 of the first structural unit 1 1 forming the carrying device protrudes beyond the outer edge at the end of the receiving channel 51, so that hydraulic connections 55, 57 and 59 are freely accessible laterally on the aggregate, with the connections 55 and 57, for example hydraulic components such as switching valve 61 (Figure 1), check valve, pressure sensor or the like may be associated. Internal fluid paths 63 in the receiving component 29 are connected to a hydraulic input 65 located on the underside of the connecting web 27, which in the state flanged to the hydraulic pump 1 is in communication with the pressure-side outlet of the hydraulic pump 1.
Der Aufbau des Anschlusskörpers 5 aus zwei Struktureinheiten 1 1 und 13 vereinfacht die Herstellung, weil lediglich die die Trageinrichtung bildende Struktureinheit 1 1 als Metallteil in spanender Bearbeitung hergestellt werden muss, beispielsweise aus einem Aluminium-Schmiedeteil. Der Anschlusskörper 5 ist dadurch mit einem überwiegenden Kunststoffanteil mit leichtem Baugewicht realisierbar. Die Erfindung ermöglicht auch den Aufbau eines [nodularen Systems, bei dem eine jeweils gleich gestaltete, aus Kunststoff bestehende Struktureinheit 1 3 mit einem an die jeweiligen hydraulischen Anforderungen angepassten und entsprechend gestalteten Me- tallinlay als Trageinrichtung benutzt wird. The structure of the connection body 5 of two structural units 1 1 and 13 simplifies the production, because only the structural unit forming the support means 1 1 must be made as a metal part in machining, for example, an aluminum forged part. The connection body 5 is thereby realized with a predominant proportion of plastic with a lightweight construction weight. The invention also makes it possible to construct a [nodular system in which an identically designed structural unit 1 3 made of plastic with a metal inlay adapted to the respective hydraulic requirements and correspondingly designed is used as a carrying device.

Claims

P a t e n t a n s p r ü c h e P a n t a n s p r e c h e
Hydraulikaggregat, insbesondere für die Versorgung von Förder- und Hebezeugen mit Druckflüssigkeit, mit einem bezüglich einer Vorrichtungshauptachse (9) endseitig gelegenen Tank (7) und an diesen angebauten Funktionskomponenten, die aus zumindest einer Hydropumpe (1 ) und einem Anschlusskörper (5) sowie einem Elektromotor (3) zum Antrieb der Hydropumpe (1 ) bestehen, dadurch gekennzeichnet, dass der Anschlusskörper (5) aus mindestens einer Struktureinheit (1 1 ) und aus mindestens einer weiteren Struktureinrichtung (13) zusammengesetzt ist und dass die eine Struktureinrichtung (1 1 ) zumindest teilweise in der weiteren Struktureinrichtung (13) aufgenommen ist. Hydraulic unit, in particular for the supply of conveying and lifting equipment with hydraulic fluid, with respect to a device main axis (9) end tank (7) and attached to this functional components consisting of at least one hydraulic pump (1) and a connection body (5) and a Electric motor (3) for driving the hydraulic pump (1) consist, characterized in that the connection body (5) from at least one structural unit (1 1) and at least one further structural device (13) is composed and that the one structural device (1 1) is at least partially included in the further structural device (13).
Hydraulikaggregat nach Anspruch 1 , dadurch gekennzeichnet, dass die eine Struktureinheit des Anschlusskörpers als Trageinrichtung (1 1 ) eine Befestigungskomponente (23) zum Festlegen sowohl des Elektromotors (3) als auch der Hydropumpe (1) aufweist, die auf gegenüberliegenden Seiten des Anschlusskörpers (5) angeordnet sind. Hydraulic assembly according to claim 1, characterized in that the one structural unit of the connecting body as a carrying device (1 1) has a fastening component (23) for fixing both the electric motor (3) and the hydraulic pump (1) on opposite sides of the connecting body (5 ) are arranged.
Hydraulikaggregat nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die weitere Struktureinheit (13) des Anschlusskörpers (5) die freie obere Öffnung des Tanks (7) in der Art eines Behälter- oder Tankdeckels zumindest randseitig abschließt und dass die Hydropumpe (1) vom Tankinneren aufgenommen ist. Hydraulic unit according to claim 1 or 2, characterized in that the further structural unit (13) of the connecting body (5) closes the free upper opening of the tank (7) in the manner of a container or tank lid, at least at the edge and in that the hydraulic pump (1) from Tankinneren is added.
Hydraulikaggregat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Trageinrichtung (1 1 ) des Anschlusskörpers (5) aus einem Metallmaterial, vorzugsweise aus einem Aluminiummaterial als Druckguss- oder Schmiedeteil hergestellt ist und die weitere Struktureinheit (13) aus einem Kunststoffmaterial, vorzugsweise aus einem glasfaserverstärkten Polyamidmaterial, besteht. Hydraulic unit according to one of the preceding claims, characterized in that the support means (1 1) of the connection body (5) made of a metal material, preferably made of an aluminum material as a die-cast or forged part and the further structural unit (13) made of a plastic material, preferably from a glass fiber reinforced polyamide material.
5. Hydraulikaggregat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Trageinrichtung (1 1 ) neben der Befestigungskomponente (23) eine Aufnahmekomponente (29) zum Festle- gen weiterer Funktionskomponenten, wie einer Ventileinrichtung (61 ), aufweist. 5. Hydraulic unit according to one of the preceding claims, characterized in that the carrying device (1 1) next to the fastening component (23) has a receiving component (29) for determining further functional components, such as a valve device (61).
Hydraulikaggregat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Trageinrichtung (1 1 ) in der weiteren Struktureinheit (13) derart aufgenommen ist, dass eine durchgehende Öffnung (21 ) im Anschlusskörper (5) geschaffen ist, die den Durchgriff von Antriebsmitteln zwischen Elektromotor (3) und Hydropumpe (1) erlaubt. Hydraulic unit according to one of the preceding claims, characterized in that the carrying device (1 1) in the further structural unit (13) is accommodated such that a through opening (21) in the connecting body (5) is provided which the passage of drive means between the electric motor (3) and hydraulic pump (1) allowed.
Hydraulikaggregat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Trageinrichtung (1 1) die durchgehende Öffnung (21 ) mit ihrer Befestigungskomponente (23) in konzentrischer Anordnung zu dieser zumindest teilweise bogenförmig begrenzt oder die Öffnung (21 ) vollständig umfasst. Hydraulic unit according to one of the preceding claims, characterized in that the support means (1 1) the continuous opening (21) with its fastening component (23) in concentric arrangement to this at least partially arcuate delimited or the opening (21) completely.
Hydraulikaggregat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Trageinrichtung (1 1 ) mindestens eine Eingriffsnase (25) am Ende ihres bogenförmigen Teils ihrer Befestigungskomponente (23) aufweist, die in eine zuordenbare Ausnehmung (33) der weiteren Struktureinheit (13) unter Bildung einer Positionierung fixierend eingreift. Hydraulic unit according to one of the preceding claims, characterized in that the carrying device (1 1) has at least one engagement lug (25) at the end of its arcuate portion of its fastening component (23) in a assignable recess (33) of the further structural unit (13) below Forming a positioning fixation engages.
Hydraulikaggregat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Trageinrichtung (1 1) zwischen Befesti- gungs(23)- und einer hydraulischen Aufnahmekomponente (29) einen Verbindungssteg (27) aufweist, der in einem tankseitig geschlossenen Aufnahmekanal (51 ) der weiteren Struktureinheit (13) des Aufnahmekörpers (5) aufgenommen ist. Hydraulic unit according to one of the preceding claims, characterized in that the carrying device (11) between fastening (23) - and a hydraulic receiving component (29) has a connecting web (27) which in a tank side closed Receiving channel (51) of the further structural unit (13) of the receiving body (5) is received.
10. Hydraulikaggregat nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Trageinrichtung (1 1 ) in der weiteren Struktureinheit (13) in Richtung des Elektromotors (3) bündig aufgenommen ist und dass die weitere Struktureinheit (13) einen plattenartigen Abdeckkörper für den Abschluss des Tanks (7) ausbildet und eine verschließbare Belüftungsöffnung (1 7) für das Tankinnere aufweist. 10. Hydraulic unit according to one of the preceding claims, characterized in that the carrying device (1 1) is received flush in the further structural unit (13) in the direction of the electric motor (3) and that the further structural unit (13) has a plate-like cover body for the conclusion of the tank (7) and has a closable ventilation opening (1 7) for the tank interior.
EP16728838.0A 2015-07-08 2016-06-10 Hydraulic unit Active EP3320210B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015008837.8A DE102015008837A1 (en) 2015-07-08 2015-07-08 hydraulic power unit
PCT/EP2016/000967 WO2017005338A1 (en) 2015-07-08 2016-06-10 Hydraulic unit

Publications (2)

Publication Number Publication Date
EP3320210A1 true EP3320210A1 (en) 2018-05-16
EP3320210B1 EP3320210B1 (en) 2019-08-07

Family

ID=56121019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16728838.0A Active EP3320210B1 (en) 2015-07-08 2016-06-10 Hydraulic unit

Country Status (4)

Country Link
EP (1) EP3320210B1 (en)
CN (1) CN208493250U (en)
DE (1) DE102015008837A1 (en)
WO (1) WO2017005338A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018001725A1 (en) 2018-03-05 2019-09-05 Hydac Fluidtechnik Gmbh connection device
DE102019003342A1 (en) * 2019-05-11 2020-11-12 Hydac Fluidtechnik Gmbh Hydraulic drive system
EP3779209B1 (en) * 2019-08-16 2023-09-20 Bucher Municipal AG Self-propelled working machine on a solid floor surface with hydraulic unit mounted on a chassis
EP4306724A1 (en) 2022-07-15 2024-01-17 Yanmar Holdings Co., Ltd. Electric work machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447467A (en) * 1943-10-23 1948-08-17 Stewart Warner Corp Pump
US3982856A (en) * 1972-01-11 1976-09-28 Karl Hehl Base and power unit for injection molding machine
EP0857871B1 (en) * 1997-02-05 2001-11-07 Hoerbiger Hydraulik GmbH Motor pump unit
AT410246B (en) * 1999-06-25 2003-03-25 Hoerbiger Hydraulik RADIAL PISTON PUMP
DE19959022C1 (en) * 1999-12-08 2001-06-21 Bosch Gmbh Robert Drive unit for hydraulic pressure source e.g. for automobile servo steering system, has electric motor enclosed by separate motor hood anchored to flange plate of pressure source
DE10105450A1 (en) * 2001-02-07 2002-08-08 Bosch Gmbh Robert Device for conveying hydraulic oil or lubricating oil, has a pump with a pump flange fastened on the valve block for anchoring of the reservoir onto it
DE10306006B4 (en) * 2003-02-12 2005-02-24 Knapp, Jürgen Michael hydraulic module
DE102008030715A1 (en) 2008-06-27 2009-12-31 Hydac Fluidtechnik Gmbh hydraulic power unit

Also Published As

Publication number Publication date
WO2017005338A1 (en) 2017-01-12
CN208493250U (en) 2019-02-15
EP3320210B1 (en) 2019-08-07
DE102015008837A1 (en) 2017-01-12

Similar Documents

Publication Publication Date Title
DE102015121193B4 (en) Framework for a control cabinet arrangement
DE102008038958B4 (en) Oil pan with oil filter to carrier unit
EP3320210B1 (en) Hydraulic unit
DE102006060351B3 (en) Hydraulic circuit arrangement for battery-driven industrial truck, has priority valve arranged to distribute volume flow flowing from pump to cylinder and load, and motor and pumps designed as motor-dual pump assembly
DE102014104838B4 (en) strut dome
WO2019001611A1 (en) Switch cabinet frame structure having closed base frame
WO2008151916A1 (en) Oil pan for an internal combustion engine transmission unit
EP2463227B1 (en) Hydraulic tank for an industrial truck
EP1164281B1 (en) Device for pumping fuel and ventilating the fuel tank
EP3371451B1 (en) Hydraulic device
DE102012214291A1 (en) Plate construction-type hydraulic controller for use in e.g. continuously variable transmission, has intermediate element surface provided with elevations that are form-fit connected with recesses, which are provided in or at control plate
EP1688595A2 (en) Oil pan for combustion engine
DE102012019295A1 (en) Door device for motor vehicle i.e. passenger car, has door comprising inner part, screw element formed corresponding to thread element, and hinge element connected with inner part of door in fixed manner over screw element
DE102008030715A1 (en) hydraulic power unit
EP3779209B1 (en) Self-propelled working machine on a solid floor surface with hydraulic unit mounted on a chassis
WO2003087576A1 (en) Hydraulic pump, particularly for a power-assisted steering system
DE102016225923A1 (en) Pump unit for a hydraulic system and duct element for a pump set
EP1237749B1 (en) Fluid tank
DE102011055799A1 (en) Shift cover for a motor vehicle transmission and a method for producing the same
EP1469169A1 (en) Fastening element and system for plastic containers
DE102009019802B4 (en) Brake unit
DE102008060411A1 (en) Internal combustion engine has crankcase upper section and crankcase lower section, where oil feedback mechanism is provided with multiple functional elements, and is flanged at lower side of crankcase lower section
DE102018005306A1 (en) Coupling device for a brake fluid reservoir and vehicle brake system
DE102017206874A1 (en) Lashing rail, loading area, vehicle
DE102005049816A1 (en) Housing, has screw bores connecting lower and upper halves of housing, where each screw bore has form fitting end area for accommodating screws, and each bore has another form-fitting end area for feeding through screws at free ends of bore

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180208

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190322

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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

Ref country code: AT

Ref legal event code: REF

Ref document number: 1164295

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190815

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502016005959

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190807

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191107

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191209

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191107

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191108

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200224

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502016005959

Country of ref document: DE

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

PG2D Information on lapse in contracting state deleted

Ref country code: IS

26N No opposition filed

Effective date: 20200603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200610

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200630

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: 20200630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200610

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200610

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190807

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1164295

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210610

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230630

Year of fee payment: 8