EP3327296A1 - Hydraulic oil tank with integrated cooling - Google Patents

Hydraulic oil tank with integrated cooling Download PDF

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Publication number
EP3327296A1
EP3327296A1 EP17200775.9A EP17200775A EP3327296A1 EP 3327296 A1 EP3327296 A1 EP 3327296A1 EP 17200775 A EP17200775 A EP 17200775A EP 3327296 A1 EP3327296 A1 EP 3327296A1
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EP
European Patent Office
Prior art keywords
tank
cooling device
liquid
cooling
guided
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Granted
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EP17200775.9A
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German (de)
French (fr)
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EP3327296B1 (en
Inventor
Walter Steinparzer
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Individual
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Individual
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Priority claimed from ATA50142/2017A external-priority patent/AT519397A1/en
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    • 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
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/042—Controlling the temperature of the fluid
    • F15B21/0423—Cooling

Definitions

  • the invention relates to a tank for a liquid, in particular a hydraulic oil, wherein the liquid from the tank is feasible and traceable back into this.
  • the invention relates to a use of such a tank.
  • the invention relates to a device with such a tank.
  • the invention relates to a method for controlling the temperature of a liquid, wherein a liquid is led out of a tank and subsequently returned to the tank.
  • the object of the invention is to provide a tank of the type mentioned, which simplifies the construction of a hydraulic system.
  • the object is achieved in that a cooling device is provided in a tank of the type mentioned in the tank.
  • An advantage achieved by the invention is to be seen in particular in the fact that no hydraulic hoses and / or piping or expensive fittings for connecting the cooling device to the tank are necessary. At the same time, the tank can be made compact with the cooling device and accordingly mounted space-saving on a vehicle.
  • Another advantage is the fact that no additional protective housing for the cooling device is necessary. By positioning the cooling device in the tank, the cooling device is sufficiently protected against damage by, for example, stone chipping, contact with other foreign bodies or corrosion.
  • the cooling device comprises a heat exchanger.
  • the heat exchanger can in this case be designed, for example, as a cooling register. This ensures efficient cooling of the hydraulic oil.
  • the cooling device comprises a multiplicity of openings. As a result, a cooling medium can be introduced into the cooling device or led out of the cooling device.
  • the cooling device comprises a fluid working machine.
  • a fluid power machine may be configured as a DC fan, fan, pump, or similar device that is configured to move a fluid into motion.
  • At least one opening is arranged on one side of the tank and at least one further opening is arranged on another side of the tank.
  • a cooling medium can be guided from one side into the tank and heated cooling medium can be guided out of the tank on another side of the tank.
  • a partition wall is provided, which is then positioned on the cooling device, wherein the partition wall divides the tank into several areas. This ensures that there is no exchange or mixing of oil from one area, with oil from another area of the tank. It is advantageous if the partition closes tightly with the cooling device and with inner walls of the tank.
  • At least one valve is provided, wherein the at least one valve is positioned in the dividing wall.
  • a valve can, for example, as a bypass valve be educated. As a result, an overpressure can be compensated.
  • the valve may also be provided in the cooling device.
  • the inlet lead into one area of the tank and the outlet from the other area of the tank.
  • heated oil in one area for example on one side of the cooling device, feasible, in particular traceable.
  • oil, in particular cooled oil, from the other area, especially on the other side of the cooling device feasible.
  • At least one mounting element is particularly advantageously provided on at least one outer side of the tank.
  • the tank can be fixed to a vehicle, so that sufficient space for supplying a cooling medium, such as cooling air, is present, which increases a cooling capacity of the cooling device.
  • a use of a tank according to the invention is advantageously carried out in a hydraulic system for cooling an oil, in particular in structures such as a crane or a lift.
  • Another object is achieved with a device having a tank according to the invention, wherein a circuit is provided in which a liquid, in particular a hydraulic oil, out of the tank and back into this traceable.
  • the further object is achieved with a method of the type mentioned above, wherein a liquid is guided into a region of the tank and is then guided through at least one cooling device and / or at least one valve in a further region of the tank.
  • An advantage achieved with this method is to be seen in particular in that a cooling of the liquid, in particular a hydraulic oil, can be carried out directly in the tank. As a result, a large volume of the liquid, in particular permanently, can be cooled. In addition, a backflow in an optional return line is avoided, which could adversely affect, for example, hydraulic components.
  • the liquid is particularly preferably conducted as a function of a viscosity through the at least one cooling device and / or through the at least one valve. This ensures that there is no overpressure due to high viscosity of the liquid.
  • a cooling medium preferably approximately parallel to the dividing wall, is guided through the cooling device. This allows the most efficient heat transfer possible.
  • Fig. 1 shows a cross-sectional view of a tank 1.
  • the tank 1 comprises a cooling device 2 and a partition wall 3, wherein the tank 1 is divided into a region A and a region B.
  • the tank 1 may be formed at least partially of a light material, in particular aluminum, or an aluminum alloy.
  • the tank 1 has a valve 4, in particular a bypass valve, in the partition wall 3.
  • the heat exchanger of the cooling device 2 is in this case designed as a cooling register, this at least partially made of a heat-resistant, preferably light Material, for example, made of aluminum or an aluminum alloy is formed.
  • the partition wall 3 may be formed, for example, as a separating plate, for example made of aluminum or of an aluminum alloy, and particularly preferably be welded between the cooling device 2 and the inner wall of the tank 1.
  • a valve 4 is designed such that it opens at a predetermined pressure, in particular at a pressure which exceeds a maximum load of the cooling device 2 and / or the partition wall 3, for example at 0.5 bar.
  • FIG. 1 an outlet 6 for a liquid, such as a hydraulic oil, which may be formed, for example, as a suction port.
  • a mounting member 5 is fixed, which is formed as a profile.
  • Fig. 2 shows a side view of a cross section through the area A of a tank 1.
  • the filter 8, in particular a return filter can be designed for the separation of particles, in particular as oil filters, so that no particles are introduced into the tank 1, which could clog the cooling device 2, for example.
  • an opening 9 is shown for a cooling medium.
  • a cooling medium for example, a cooling liquid or a gas, particularly preferably air, sucked.
  • a cooling air for example, a fan may be provided.
  • the rear-side further opening 10 is shown. Through this opening 10, a cooling medium from the cooling device 2 can be guided.
  • At least one of the openings 9, 10 may be formed, for example, as a ventilation opening having ventilation slots.
  • the back-fixed mounting elements 5 are shown. Such a mounting element 5 may be formed as a spacer to provide a margin, in particular following an opening 10.
  • the clearance space expediently provides space for cooling medium escaping from the cooling device 2, in particular for air which flows out of the cooling device 2 through a ventilation opening.
  • the two openings 9, 10 are particularly preferably arranged on opposite sides of the tank 1, so that the cooling medium can be guided by the cooling device 2, without a direction of movement the cooling medium must be changed or reversed.
  • the cooling medium can be guided substantially rectilinearly by the cooling device 2, whereby turbulences or local deviations from a rectilinear movement direction can occur.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

Die Erfindung betrifft einen Tank (1) für eine Flüssigkeit, insbesondere ein Hydrauliköl, wobei die Flüssigkeit aus dem Tank (1) führbar und wieder in diesen rückführbar ist, wobei im Tank (1) eine Kühleinrichtung (2) vorgesehen ist. Weiter betrifft die Erfindung eine Verwendung eines solchen Tanks (1). Darüber hinaus betrifft die Erfindung eine Vorrichtung mit einem solchen Tank (1) bei einem Hydrauliksystem zur Kühlung eines Öls. Des Weiteren betrifft die Erfindung ein Verfahren zur Temperaturregelung einer Flüssigkeit, wobei eine Flüssigkeit aus einem Tank (1) geführt und in weiterer Folge in den Tank (1) rückgeführt wird, wobei die Flüssigkeit in einen Bereich (A) des Tanks (1) geführt wird und danach durch zumindest eine Kühleinrichtung (2) und/oder zumindest ein Ventil (4) in einen weiteren Bereich (B) des Tank (1) geführt wird.The invention relates to a tank (1) for a liquid, in particular a hydraulic oil, wherein the liquid from the tank (1) is feasible and traceable back into this, wherein in the tank (1) a cooling device (2) is provided. Furthermore, the invention relates to a use of such a tank (1). Moreover, the invention relates to a device with such a tank (1) in a hydraulic system for cooling an oil. Furthermore, the invention relates to a method for controlling the temperature of a liquid, wherein a liquid from a tank (1) out and subsequently recycled into the tank (1), wherein the liquid in a region (A) of the tank (1) out is and then by at least one cooling device (2) and / or at least one valve (4) in a wider range (B) of the tank (1) is guided.

Description

Die Erfindung betrifft einen Tank für eine Flüssigkeit, insbesondere ein Hydrauliköl, wobei die Flüssigkeit aus dem Tank führbar und wieder in diesen rückführbar ist.The invention relates to a tank for a liquid, in particular a hydraulic oil, wherein the liquid from the tank is feasible and traceable back into this.

Weiter betrifft die Erfindung eine Verwendung eines solchen Tanks.Furthermore, the invention relates to a use of such a tank.

Darüber hinaus betrifft die Erfindung eine Vorrichtung mit einem solchen Tank.Moreover, the invention relates to a device with such a tank.

Des Weiteren betrifft die Erfindung ein Verfahren zur Temperaturregelung einer Flüssigkeit, wobei eine Flüssigkeit aus einem Tank geführt und in weiterer Folge in den Tank rückgeführt wird.Furthermore, the invention relates to a method for controlling the temperature of a liquid, wherein a liquid is led out of a tank and subsequently returned to the tank.

Aus dem Stand der Technik sind Tanks zur Speicherung von Hydrauliköl bekannt, wobei das Hydrauliköl in einem Kreislauf geführt wird. Bei einer Vorrichtung mit einem Tank, insbesondere bei einem Hydrauliksystem, ist eine externe Kühleinrichtung für das Hydrauliköl vorgesehen, welche mittels Schläuchen und Rohrleitungen mit dem Tank verbunden ist. Bei einer Montage auf einem Fahrzeug, beispielsweise zum Betreiben eines Krans oder einer Hebebühne, muss hierbei sowohl für den Tank als auch für die Kühleinrichtung Platz vorgesehen sein.From the prior art tanks for storing hydraulic oil are known, wherein the hydraulic oil is circulated. In a device with a tank, in particular in a hydraulic system, an external cooling device for the hydraulic oil is provided, which is connected by means of hoses and pipes to the tank. When mounted on a vehicle, for example, for operating a crane or a lift, this space must be provided for both the tank and for the cooling device.

Hier setzt die Erfindung an. Aufgabe der Erfindung ist es, einen Tank der eingangs genannten Art anzugeben, welcher den Aufbau eines Hydrauliksystems vereinfacht.This is where the invention starts. The object of the invention is to provide a tank of the type mentioned, which simplifies the construction of a hydraulic system.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einem Tank der eingangs genannten Art im Tank eine Kühleinrichtung vorgesehen ist.The object is achieved in that a cooling device is provided in a tank of the type mentioned in the tank.

Ein mit der Erfindung erzielter Vorteil ist insbesondere darin zu sehen, dass keine Hydraulikschläuche und/oder Rohrleitungen bzw. teure Verschraubungen zur Verbindung der Kühleinrichtung mit dem Tank notwendig sind. Zugleich kann der Tank mit der Kühleinrichtung kompakt ausgebildet sein und dementsprechend platzsparend auf einem Fahrzeug montiert sein.An advantage achieved by the invention is to be seen in particular in the fact that no hydraulic hoses and / or piping or expensive fittings for connecting the cooling device to the tank are necessary. At the same time, the tank can be made compact with the cooling device and accordingly mounted space-saving on a vehicle.

Ein weiterer Vorteil ist darin zu sehen, dass kein zusätzliches Schutzgehäuse für die Kühleinrichtung notwendig ist. Durch die Positionierung der Kühleinrichtung im Tank ist die Kühleinrichtung ausreichend vor Beschädigungen durch beispielsweise Steinschlag, Kontakt mit anderen Fremdkörpern oder Korrosion geschützt.Another advantage is the fact that no additional protective housing for the cooling device is necessary. By positioning the cooling device in the tank, the cooling device is sufficiently protected against damage by, for example, stone chipping, contact with other foreign bodies or corrosion.

Besonders günstig ist es dabei weiter, wenn die Kühleinrichtung einen Wärmeübertrager umfasst. Der Wärmeübertrager kann hierbei beispielsweise als Kühlregister ausgebildet sein. Dadurch ist eine effiziente Kühlung des Hydrauliköls gewährleistet.It is particularly favorable in this case if the cooling device comprises a heat exchanger. The heat exchanger can in this case be designed, for example, as a cooling register. This ensures efficient cooling of the hydraulic oil.

Vorteilhaft ist es, wenn die Kühleinrichtung eine Vielzahl von Öffnungen umfasst. Dadurch kann ein Kühlmedium in die Kühleinrichtung eingebracht bzw. aus der Kühleinrichtung herausgeführt werden.It is advantageous if the cooling device comprises a multiplicity of openings. As a result, a cooling medium can be introduced into the cooling device or led out of the cooling device.

Um ein Kühlmedium durch die Kühleinrichtung zu führen, kann vorgesehen sein, dass die Kühleinrichtung eine Fluidarbeitsmaschine umfasst. Eine Fluidarbeitsmaschine kann beispielsweise als Gleichstromgebläse, Ventilator, Pumpe oder ähnliche Vorrichtung, welche dazu ausgebildet ist, ein Fluid in Bewegung zu versetzen, ausgebildet sein.In order to guide a cooling medium through the cooling device, it can be provided that the cooling device comprises a fluid working machine. For example, a fluid power machine may be configured as a DC fan, fan, pump, or similar device that is configured to move a fluid into motion.

Von Vorteil ist es, wenn zumindest eine Öffnung auf einer Seite des Tanks und zumindest eine weitere Öffnung auf einer anderen Seite des Tanks angeordnet ist. Dadurch ist ein Kühlmedium von einer Seite in den Tank führbar und erwärmtes Kühlmedium auf einer anderen Seite des Tanks aus dem Tank führbar.It is advantageous if at least one opening is arranged on one side of the tank and at least one further opening is arranged on another side of the tank. As a result, a cooling medium can be guided from one side into the tank and heated cooling medium can be guided out of the tank on another side of the tank.

Zweckmäßigerweise ist eine Trennwand vorgesehen, welche an die Kühleinrichtung anschließend positioniert ist, wobei die Trennwand den Tank in mehrere Bereiche unterteilt. Dadurch ist gewährleistet, dass es zu keinem Austausch bzw. Vermischung von Öl aus einem Bereich, mit Öl aus einem weiteren Bereich des Tanks kommt. Hierbei ist es von Vorteil, wenn die Trennwand mit der Kühleinrichtung sowie mit Innenwänden des Tanks dicht abschließt.Conveniently, a partition wall is provided, which is then positioned on the cooling device, wherein the partition wall divides the tank into several areas. This ensures that there is no exchange or mixing of oil from one area, with oil from another area of the tank. It is advantageous if the partition closes tightly with the cooling device and with inner walls of the tank.

Um kühles bzw. hochviskoses Öl an der Kühleinrichtung vorbeizuführen, kann es von Vorteil sein, wenn zumindest ein Ventil vorgesehen ist, wobei das zumindest eine Ventil in der Trennwand positioniert ist. Ein solches Ventil kann beispielsweise als Bypass-Ventil ausgebildet sein. Dadurch kann ein Überdruck ausgeglichen werden. Alternativ kann das Ventil auch in der Kühleinrichtung vorgesehen sein.In order to pass cool or highly viscous oil past the cooling device, it can be advantageous if at least one valve is provided, wherein the at least one valve is positioned in the dividing wall. Such a valve can, for example, as a bypass valve be educated. As a result, an overpressure can be compensated. Alternatively, the valve may also be provided in the cooling device.

Es kann weiter vorteilhaft sein, wenn eine Vielzahl von Ventilen vorgesehen ist, um das Hydrauliköl in bestimmten Kreisläufen zu führen.It may also be advantageous if a plurality of valves is provided to guide the hydraulic oil in certain circuits.

Um eine Flüssigkeit aus dem Tank entnehmen bzw. in diesen rückführen zu können, ist es vorteilhaft, wenn zumindest ein Einlass und zumindest ein Auslass für eine Flüssigkeit vorgesehen sind.In order to remove a liquid from the tank or to be able to recirculate it in this, it is advantageous if at least one inlet and at least one outlet for a liquid are provided.

Zweckmäßigerweise führen der Einlass in einen Bereich des Tanks und der Auslass aus dem anderen Bereich des Tanks. Dadurch ist erwärmtes Öl in den einen Bereich, beispielsweise auf einer Seite der Kühleinrichtung, führbar, insbesondere rückführbar. Im Weiteren ist Öl, insbesondere abgekühltes Öl, aus dem anderen Bereich, insbesondere auf der anderen Seite der Kühleinrichtung, führbar.Conveniently, the inlet lead into one area of the tank and the outlet from the other area of the tank. As a result, heated oil in one area, for example on one side of the cooling device, feasible, in particular traceable. In addition, oil, in particular cooled oil, from the other area, especially on the other side of the cooling device, feasible.

Zur Montage an einem Fahrzeug ist mit besonderem Vorteil zumindest ein Montageelement an zumindest einer Außenseite des Tanks vorgesehen. Mit Vorteil kann der Tank an einem Fahrzeug fixierbar sein, sodass ausreichend Platz zur Zufuhr eines Kühlmediums, beispielsweise Kühlluft, vorhanden ist, was eine Kühlleistung der Kühleinrichtung erhöht.For mounting on a vehicle, at least one mounting element is particularly advantageously provided on at least one outer side of the tank. Advantageously, the tank can be fixed to a vehicle, so that sufficient space for supplying a cooling medium, such as cooling air, is present, which increases a cooling capacity of the cooling device.

Eine Verwendung eines erfindungsgemäßen Tanks erfolgt mit Vorteil bei einem Hydrauliksystem zur Kühlung eines Öls, insbesondere bei Aufbauten wie beispielsweise einem Kran oder einer Hebebühne.A use of a tank according to the invention is advantageously carried out in a hydraulic system for cooling an oil, in particular in structures such as a crane or a lift.

Ein weiteres Ziel wird mit einer Vorrichtung mit einem erfindungsgemäßen Tank erreicht, wobei ein Kreislauf vorgesehen ist, in welchem eine Flüssigkeit, insbesondere ein Hydrauliköl, aus dem Tank führbar und wieder in diesen rückführbar ist.Another object is achieved with a device having a tank according to the invention, wherein a circuit is provided in which a liquid, in particular a hydraulic oil, out of the tank and back into this traceable.

Das weitere Ziel wird mit einem Verfahren der eingangs genannten Art erreicht, wobei eine Flüssigkeit in einen Bereich des Tanks geführt wird und danach durch zumindest eine Kühleinrichtung und/oder zumindest ein Ventil in einen weiteren Bereich des Tanks geführt wird.The further object is achieved with a method of the type mentioned above, wherein a liquid is guided into a region of the tank and is then guided through at least one cooling device and / or at least one valve in a further region of the tank.

Ein mit diesem Verfahren erzielter Vorteil ist insbesondere darin zu sehen, dass eine Kühlung der Flüssigkeit, insbesondere eines Hydrauliköls, direkt im Tank erfolgen kann. Dadurch kann ein großes Volumen der Flüssigkeit, insbesondere permanent, gekühlt werden. Darüber hinaus wird ein Rückstau in einer optionalen Rücklaufleitung vermieden, welcher beispielsweise Hydraulikkomponenten negativ beeinflussen könnte.An advantage achieved with this method is to be seen in particular in that a cooling of the liquid, in particular a hydraulic oil, can be carried out directly in the tank. As a result, a large volume of the liquid, in particular permanently, can be cooled. In addition, a backflow in an optional return line is avoided, which could adversely affect, for example, hydraulic components.

Besonders bevorzugt wird die Flüssigkeit in Abhängigkeit von einer Viskosität durch die zumindest eine Kühleinrichtung und/oder durch das zumindest eine Ventil geführt. Dadurch ist gewährleistet, dass es zu keinem Überdruck aufgrund hoher Viskosität der Flüssigkeit kommt. Eine Wahl eines Weges der Flüssigkeit aus dem einen Bereich in den weiteren Bereich des Tanks, wie etwa durch die Kühleinrichtung und/oder durch das Ventil, ergibt sich aus einem Strömungswiderstand der Flüssigkeit in der Kühleinrichtung bzw. aus einem daraus resultierenden Druck.The liquid is particularly preferably conducted as a function of a viscosity through the at least one cooling device and / or through the at least one valve. This ensures that there is no overpressure due to high viscosity of the liquid. A choice of a path of the liquid from the one region into the further region of the tank, such as through the cooling device and / or through the valve, results from a flow resistance of the liquid in the cooling device or from a pressure resulting therefrom.

Mit Vorteil wird ein Kühlmedium, vorzugsweise etwa parallel zur Trennwand, durch die Kühleinrichtung geführt. Dadurch wird eine möglichst effiziente Wärmeübertragung ermöglicht.Advantageously, a cooling medium, preferably approximately parallel to the dividing wall, is guided through the cooling device. This allows the most efficient heat transfer possible.

Weitere Merkmale, Vorteile und Wirkungen ergeben sich aus dem nachfolgend dargestellten Ausführungsbeispiel. In den Zeichnungen, auf welche dabei Bezug genommen wird, zeigen:

  • Fig. 1 einen Querschnitt eines Tanks;
  • Fig. 2 einen Querschnitt eines Tanks in Seitenansicht;
  • Fig. 3 eine Vorderansicht eines Tanks;
  • Fig. 4 eine Rückansicht eines Tanks.
Other features, advantages and effects will become apparent from the embodiment illustrated below. In the drawings, to which reference is made, show:
  • Fig. 1 a cross section of a tank;
  • Fig. 2 a cross section of a tank in side view;
  • Fig. 3 a front view of a tank;
  • Fig. 4 a rear view of a tank.

Fig. 1 zeigt eine Querschnittsdarstellung eines Tanks 1. Der Tank 1 umfasst eine Kühleinrichtung 2 und eine Trennwand 3, wobei der Tank 1 in einen Bereich A und einen Bereich B unterteilt ist. Der Tank 1 kann zumindest teilweise aus einem leichten Material, insbesondere aus Aluminium, oder einer Aluminiumlegierung ausgebildet sein. Darüber hinaus weist der Tank 1 ein Ventil 4, insbesondere ein Bypass-Ventil, in der Trennwand 3 auf. Der Wärmeübertrager der Kühleinrichtung 2 ist hierbei als Kühlregister ausgebildet, wobei dieses zumindest teilweise aus einem hitzebeständigen, vorzugsweise leichten Material, beispielsweise aus Aluminium bzw. aus einer Aluminiumlegierung, ausgebildet ist. Die Trennwand 3 kann beispielsweise als Trennblech, beispielsweise aus Aluminium bzw. aus einer Aluminiumlegierung, ausgebildet und besonders bevorzugt zwischen Kühleinrichtung 2 und der Innenwand des Tanks 1 eingeschweißt sein. Mit Vorteil ist ein Ventil 4 derart ausgebildet, dass es bei einem vorbestimmten Druck, insbesondere bei einem Druck, welcher eine maximale Belastung der Kühleinrichtung 2 und/oder der Trennwand 3 übersteigt, beispielsweise bei 0,5 bar, öffnet. Fig. 1 shows a cross-sectional view of a tank 1. The tank 1 comprises a cooling device 2 and a partition wall 3, wherein the tank 1 is divided into a region A and a region B. The tank 1 may be formed at least partially of a light material, in particular aluminum, or an aluminum alloy. In addition, the tank 1 has a valve 4, in particular a bypass valve, in the partition wall 3. The heat exchanger of the cooling device 2 is in this case designed as a cooling register, this at least partially made of a heat-resistant, preferably light Material, for example, made of aluminum or an aluminum alloy is formed. The partition wall 3 may be formed, for example, as a separating plate, for example made of aluminum or of an aluminum alloy, and particularly preferably be welded between the cooling device 2 and the inner wall of the tank 1. Advantageously, a valve 4 is designed such that it opens at a predetermined pressure, in particular at a pressure which exceeds a maximum load of the cooling device 2 and / or the partition wall 3, for example at 0.5 bar.

Des Weiteren zeigt Fig. 1 einen Auslass 6 für eine Flüssigkeit, wie etwa für ein Hydrauliköl, welcher beispielsweise als Sauganschluss ausgebildet sein kann. An einer Rück- sowie Unterseite ist ein Montageelement 5 fixiert, welches als Profil ausgebildet ist.Further shows Fig. 1 an outlet 6 for a liquid, such as a hydraulic oil, which may be formed, for example, as a suction port. At a rear and bottom, a mounting member 5 is fixed, which is formed as a profile.

Fig. 2 zeigt eine Seitenansicht eines Querschnitts durch den Bereich A eines Tanks 1. Hierbei führt ein Einlass 7 für eine Flüssigkeit in den Bereich A des Tanks 1. Besonders bevorzugt weist der Einlass 7 einen Filter 8 auf. Der Filter 8, insbesondere ein Rücklauffilter, kann zur Abscheidung von Partikeln, insbesondere als Ölfilter ausgebildet sein, damit keine Partikel in den Tank 1 eingebracht werden, welche beispielsweise die Kühleinrichtung 2 verstopfen könnten. Besonders bevorzugt ist der Filter 8, beispielsweise zur Reinigung, abnehmbar und/oder gegen einen neuen Filter 8 austauschbar. Fig. 2 shows a side view of a cross section through the area A of a tank 1. Here, an inlet 7 for a liquid in the area A of the tank 1. Particularly preferably, the inlet 7, a filter 8 on. The filter 8, in particular a return filter, can be designed for the separation of particles, in particular as oil filters, so that no particles are introduced into the tank 1, which could clog the cooling device 2, for example. Particularly preferably, the filter 8, for example, for cleaning, removable and / or interchangeable with a new filter 8.

In einer in Fig. 3 gezeigten Ansicht des Tanks 1 ist eine Öffnung 9 für ein Kühlmedium dargestellt. Durch diese Öffnung 9 ist ein Kühlmedium, beispielsweise eine Kühlflüssigkeit oder ein Gas, besonders bevorzugt Luft, ansaugbar. Zum Ansaugen einer Kühlluft kann beispielsweise ein Gebläse vorgesehen sein. In Fig. 4 ist die rückseitig angeordnete weitere Öffnung 10 gezeigt. Durch diese Öffnung 10 ist ein Kühlmedium aus der Kühleinrichtung 2 führbar. Zumindest eine der Öffnungen 9, 10 kann beispielsweise als Lüftungsöffnung aufweisend Lüftungsschlitze ausgebildet sein. Im Weiteren sind die rückseitig fixierten Montageelemente 5 gezeigt. Ein derartiges Montageelement 5 kann als Abstandhalter ausgebildet sein, um einen Spielraum, insbesondere im Anschluss an eine Öffnung 10, bereitzustellen. Zweckmäßigerweise bietet der Spielraum Platz für aus der Kühleinrichtung 2 entweichendes Kühlmedium, insbesondere für Luft welche durch eine Lüftungsöffnung aus der Kühleinrichtung 2 strömt. Die beiden Öffnungen 9, 10 sind besonders bevorzugt an gegenüberliegenden Seiten des Tanks 1 angeordnet, sodass das Kühlmedium durch die Kühleinrichtung 2 führbar ist, ohne dass eine Bewegungsrichtung des Kühlmediums geändert bzw. umgekehrt werden muss. Das Kühlmedium ist beispielsweise im Wesentlichen geradlinig durch die Kühleinrichtung 2 führbar, wobei Turbulenzen bzw. lokale Abweichungen von einer geradlinigen Bewegungsrichtung auftreten können.In an in Fig. 3 shown view of the tank 1, an opening 9 is shown for a cooling medium. Through this opening 9 is a cooling medium, for example, a cooling liquid or a gas, particularly preferably air, sucked. For sucking a cooling air, for example, a fan may be provided. In Fig. 4 the rear-side further opening 10 is shown. Through this opening 10, a cooling medium from the cooling device 2 can be guided. At least one of the openings 9, 10 may be formed, for example, as a ventilation opening having ventilation slots. In addition, the back-fixed mounting elements 5 are shown. Such a mounting element 5 may be formed as a spacer to provide a margin, in particular following an opening 10. The clearance space expediently provides space for cooling medium escaping from the cooling device 2, in particular for air which flows out of the cooling device 2 through a ventilation opening. The two openings 9, 10 are particularly preferably arranged on opposite sides of the tank 1, so that the cooling medium can be guided by the cooling device 2, without a direction of movement the cooling medium must be changed or reversed. By way of example, the cooling medium can be guided substantially rectilinearly by the cooling device 2, whereby turbulences or local deviations from a rectilinear movement direction can occur.

Claims (16)

Tank (1) für eine Flüssigkeit, insbesondere ein Hydrauliköl, wobei die Flüssigkeit aus dem Tank (1) führbar und wieder in diesen rückführbar ist, dadurch gekennzeichnet, dass im Tank (1) eine Kühleinrichtung (2) vorgesehen ist.Tank (1) for a liquid, in particular a hydraulic oil, wherein the liquid from the tank (1) is feasible and traceable back into this, characterized in that in the tank (1) a cooling device (2) is provided. Tank (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Kühleinrichtung (2) einen Wärmeübertrager umfasst.Tank (1) according to claim 1, characterized in that the cooling device (2) comprises a heat exchanger. Tank (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kühleinrichtung (2) eine Vielzahl von Öffnungen (9, 10) umfasst.Tank (1) according to claim 1 or 2, characterized in that the cooling device (2) comprises a plurality of openings (9, 10). Tank (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Kühleinrichtung (2) eine Fluidarbeitsmaschine umfasst.Tank (1) according to one of claims 1 to 3, characterized in that the cooling device (2) comprises a fluid working machine. Tank (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zumindest eine Öffnung (9) auf einer Seite des Tanks (1) und zumindest eine weitere Öffnung (10) auf einer anderen Seite des Tanks (1) angeordnet ist.Tank (1) according to one of claims 1 to 4, characterized in that at least one opening (9) on one side of the tank (1) and at least one further opening (10) on another side of the tank (1) is arranged. Tank (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass eine Trennwand (3) vorgesehen ist, welche an die Kühleinrichtung (2) anschließend positioniert ist, wobei die Trennwand (3) den Tank (1) in mehrere Bereiche (A, B) unterteilt.Tank (1) according to one of claims 1 to 5, characterized in that a partition wall (3) is provided which is subsequently positioned on the cooling device (2), wherein the partition (3) divides the tank (1) into a plurality of areas (3). A, B). Tank (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zumindest ein Ventil (4) vorgesehen ist, wobei das zumindest eine Ventil (4) in der Trennwand (3) positioniert ist.Tank (1) according to one of claims 1 to 6, characterized in that at least one valve (4) is provided, wherein the at least one valve (4) is positioned in the partition wall (3). Tank (1) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass eine Vielzahl von Ventilen (4) vorgesehen ist.Tank (1) according to one of claims 1 to 7, characterized in that a plurality of valves (4) is provided. Tank (1) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass zumindest ein Einlass (7) und zumindest ein Auslass (6) für eine Flüssigkeit vorgesehen sind.Tank (1) according to one of claims 1 to 8, characterized in that at least one inlet (7) and at least one outlet (6) are provided for a liquid. Tank (1) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Einlass (7) in einen Bereich (A) des Tanks (1) führt und der Auslass (6) aus dem anderen Bereich (B) des Tanks (1) führt.Tank (1) according to one of Claims 1 to 9, characterized in that the inlet (7) leads into a region (A) of the tank (1) and the outlet (6) out of the other region (B) of the tank (1 ) leads. Tank (1) nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass zumindest ein Montageelement (5) an zumindest einer Außenseite des Tanks (1) vorgesehen ist.Tank (1) according to one of claims 1 to 10, characterized in that at least one mounting element (5) is provided on at least one outer side of the tank (1). Verwendung eines Tanks (1) nach einem der Ansprüche 1 bis 11 bei einem Hydrauliksystem zur Kühlung eines Öls.Use of a tank (1) according to one of claims 1 to 11 in a hydraulic system for cooling an oil. Vorrichtung mit einem Tank (1) nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass ein Kreislauf vorgesehen ist, in welchem eine Flüssigkeit, insbesondere ein Hydrauliköl, aus dem Tank (1) führbar und wieder in diesen rückführbar ist.Device with a tank (1) according to one of claims 1 to 11, characterized in that a circuit is provided in which a liquid, in particular a hydraulic oil, from the tank (1) feasible and back into this is traceable. Verfahren zur Temperaturregelung einer Flüssigkeit, wobei eine Flüssigkeit aus einem Tank (1), insbesondere einem Tank (1) nach einem der Ansprüche 1 bis 11, geführt und in weiterer Folge in den Tank (1) rückgeführt wird, dadurch gekennzeichnet, dass die Flüssigkeit in einen Bereich (A) des Tanks (1) geführt wird und danach durch zumindest eine Kühleinrichtung (2) und/oder zumindest ein Ventil (4) in einen weiteren Bereich (B) des Tank (1) geführt wird.A method for controlling the temperature of a liquid, wherein a liquid from a tank (1), in particular a tank (1) according to one of claims 1 to 11, guided and subsequently returned to the tank (1), characterized in that the liquid in a region (A) of the tank (1) is guided and then by at least one cooling device (2) and / or at least one valve (4) in a further region (B) of the tank (1) is guided. Verfahren nach Anspruch 14, dadurch gekennzeichnet, dass die Flüssigkeit in Abhängigkeit von einer Viskosität durch die zumindest eine Kühleinrichtung (2) und/oder durch das zumindest eine Ventil (4) geführt wird.A method according to claim 14, characterized in that the liquid is guided in dependence on a viscosity by the at least one cooling device (2) and / or by the at least one valve (4). Verfahren nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass ein Kühlmedium, vorzugsweise etwa parallel zur Trennwand (3), durch die Kühleinrichtung (2) geführt wird.A method according to claim 14 or 15, characterized in that a cooling medium, preferably approximately parallel to the partition (3), by the cooling device (2) is guided.
EP17200775.9A 2016-11-28 2017-11-09 Hydraulic oil tank with integrated cooling Active EP3327296B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT600092016 2016-11-28
ATA50142/2017A AT519397A1 (en) 2016-11-28 2017-02-21 Hydraulic oil tank with integrated cooling

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EP3327296B1 EP3327296B1 (en) 2019-07-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116112A (en) * 1984-11-12 1986-06-03 Sekitan Rotenbori Kikai Gijutsu Kenkyu Kumiai Liquid cooling system for construction machinery
WO2000028269A1 (en) * 1998-11-07 2000-05-18 J C Bamford Excavators Limited Heat exchange means for a vehicle
DE102008026200A1 (en) * 2008-05-30 2009-12-03 Hydac S.A. Fluid i.e. hydraulic oil, cooling device, has heat exchanger for cooling heated fluid, and contact surface clamped at connection point, which establishes fluid-conveying connection between heat exchanger and tank
DE102010012952A1 (en) * 2010-03-26 2011-09-29 Hydac Ag Fluid Cooler
CN104514760A (en) * 2013-09-26 2015-04-15 北汽福田汽车股份有限公司 Hydraulic oil tank, hydraulic system with hydraulic oil tank and vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116112A (en) * 1984-11-12 1986-06-03 Sekitan Rotenbori Kikai Gijutsu Kenkyu Kumiai Liquid cooling system for construction machinery
WO2000028269A1 (en) * 1998-11-07 2000-05-18 J C Bamford Excavators Limited Heat exchange means for a vehicle
DE102008026200A1 (en) * 2008-05-30 2009-12-03 Hydac S.A. Fluid i.e. hydraulic oil, cooling device, has heat exchanger for cooling heated fluid, and contact surface clamped at connection point, which establishes fluid-conveying connection between heat exchanger and tank
DE102010012952A1 (en) * 2010-03-26 2011-09-29 Hydac Ag Fluid Cooler
CN104514760A (en) * 2013-09-26 2015-04-15 北汽福田汽车股份有限公司 Hydraulic oil tank, hydraulic system with hydraulic oil tank and vehicle

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