EP0271702A2 - Oil container for supplying hydraulic working circuits serving for accumulation and resumption of returned oil - Google Patents
Oil container for supplying hydraulic working circuits serving for accumulation and resumption of returned oil Download PDFInfo
- Publication number
- EP0271702A2 EP0271702A2 EP87116360A EP87116360A EP0271702A2 EP 0271702 A2 EP0271702 A2 EP 0271702A2 EP 87116360 A EP87116360 A EP 87116360A EP 87116360 A EP87116360 A EP 87116360A EP 0271702 A2 EP0271702 A2 EP 0271702A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- oil container
- space
- container according
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009825 accumulation Methods 0.000 title 1
- 238000005192 partition Methods 0.000 claims abstract description 22
- 238000012546 transfer Methods 0.000 claims abstract description 13
- 210000000056 organ Anatomy 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 238000011084 recovery Methods 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 4
- 230000002706 hydrostatic effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 79
- 239000003570 air Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000001914 calming effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86187—Plural tanks or compartments connected for serial flow
- Y10T137/86212—Plural compartments formed by baffles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86187—Plural tanks or compartments connected for serial flow
- Y10T137/86228—With communicating opening in common walls of tanks or compartments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86292—System with plural openings, one a gas vent or access opening
- Y10T137/86324—Tank with gas vent and inlet or outlet
Definitions
- the invention relates to an oil tank for supplying oil to hydraulic working groups with a storage function, in particular of hydrostatic drive, braking, braking energy recovery and working devices in vehicles, lifting, conveying and similar systems, and for the recovery of returned oil.
- hydraulic oil is fed to the hydraulic working groups of a system by means of a pump.
- the oil that is returned to the oil container is leakage oil or e.g. through pressure relief valves, controlled oil.
- This returned hydraulic oil is usually at an elevated temperature and can be permeated with air and microparticles.
- the hydraulic oil to be returned from the oil tank to the circuit should not exceed a certain temperature, be clean and free of bubbles. External cooling devices, filters and air separators have hitherto been provided for this. However, this considerably increases the cost and the space requirement of the system as such.
- it can e.g. for repair purposes, it may be necessary to drain the oil absorbed by the accumulator, which forms part of a hydraulic working circuit. As a rule, separate containers must also be provided for this.
- the oil tank is divided into several functional rooms by internal partitions, namely a collecting room for receiving at least a large part of the system's internal oil volume as required, a feed room for leakage or diverted oil, an outlet connecting the latter, separated from it by an oil-permeable partition and a storage space, which connects to the transition space at the outlet thereof, separated from it by an also oil-permeable, functionally identical partition wall.
- a collecting room for receiving at least a large part of the system's internal oil volume as required
- a feed room for leakage or diverted oil an outlet connecting the latter, separated from it by an oil-permeable partition
- a storage space which connects to the transition space at the outlet thereof, separated from it by an also oil-permeable, functionally identical partition wall.
- the solution according to the invention thus provides an advantageous way of cooling, filtering, calming and freeing air from the oil returned to it with a single oil container, so that an excellently prepared oil that can be fed back into the hydraulic working groups is then restored in the reservoir of the oil container Oil is available.
- the collection room can e.g. in the event of repairs, the oil is drained from the work groups and in particular from the store (s) and returned to the system after the repairs have been completed. As a result, the cumbersome provision of independent drain containers can be omitted.
- the oil tank designated by (1) in the drawing is assigned to a hydraulic system with hydraulic working circuits and one or more hydraulic accumulators (HDS, NDS) - see FIG. 4.
- This hydraulic system can, for example, be part of hydrostatic drive devices, braking devices, braking energy recovery devices, working devices in vehicles, for example commercial vehicles, lifting, conveying or similar systems.
- the oil container (1) consists of an outer wall (2), a bottom (3) and a cover (4).
- a number of functional rooms are provided in the oil tank (1), namely a collecting room (5), a feed-in room (6), a transfer room (7) and a storage room (8). These functional spaces are separated from one another by the internal division of the oil container (1) by partitions.
- the gathering Space (5) which is used for receiving at least a large part of the system-internal oil quantity, for example in the case of repairs, is realized by providing an intermediate floor (9) which forms a partition and divides the oil container (1) transversely and in the illustrated embodiment together with the upper part of the container limits the collection space (5).
- the lower part of the container is divided by an impermeable partition (10) and two oil-permeable partition walls (11, 12) adjoining it at the ends, on both sides, to form the feed space (6), transfer space (7) and storage space (8).
- the partitions (10, 11, 12) each extend from the inside of the outer wall (2) of the oil tank (1) between the oil tank bottom (3) and the intermediate floor (9).
- the feed space (6) serves to accommodate leakage or oil that has been shut off from the hydraulic working circuits, whereby on the outer wall (2) of the oil reservoir (1) area of the feed space (6) there is an opening and, taking the same outside, precautions, e.g. in Form of a connection block (13), for the connection of leakage oil and control return lines (14, 15) are provided.
- the outlet of the feed space (6), separated from it by the oil-permeable wall (11), is connected to the transfer space (7).
- the latter is connected to the collecting space (5) via a line (17) which can be shut off, for example by means of a tap (16), optionally also a remote-controllable valve.
- a line (17) which can be shut off, for example by means of a tap (16), optionally also a remote-controllable valve.
- the transfer space (7) is connected to the storage space (8), the transfer space (7) being separated from the storage space (8) by the oil-permeable partition (12).
- the leakage oil returned to the oil tank (1) or the oil that is diverted from the hydraulic working circuits first arrives in the feed space (6), as can be seen in the diagram according to FIG. 4, and then flows further through the oil-permeable partition (11) into the transfer space ( 7) and then through the oil-permeable partition (12) into the storage room (8).
- the oil fed into the feed space (6) is calmed, cooled, filtered and any air components present are removed. Calming, filtering and air separation take place on and in connection with the oil-permeable partition walls (11, 12).
- the rooms (5, 6, 7, 8) are assigned corresponding display instruments for displaying the respective oil level.
- These can be attached directly to the oil tank (1) and / or for remote monitoring with appropriate, on or in the oil tank (1) attached level sensors via sensor lines.
- a sight glass (22) for the oil level in the upper control space (7), a sight glass (29) for the oil level in the collecting space (S) and a level sensor (23) are assigned to the storage space (8).
- the level sensor (23) is arranged with its oil level sensor elements (25) in or on a riser pipe (24) which is attached to the intermediate floor (9) and extends through the collecting space (5) to the top of the oil container (1).
- This riser pipe (24) is provided with a cover (26) on which a level sensor (23) is arranged.
- the two oil-permeable partitions (11, 12) are preferably arranged interchangeably in the oil container (1) and in this case can be inserted or removed, for example, from the bottom (3) or the outer wall (2) of the oil container (1) through corresponding openings and insertion elements accommodated internally in corresponding guides can be formed, which is the case and indicated schematically in the exemplary embodiment shown.
- the oil container (1) is equipped with a removable cover (4), optionally also with a removable bottom (3) or removable outer wall parts.
- the oil tank (1) is arranged at a suitable point in the system to be supplied with oil. If the ambient conditions to which the oil container (1) is exposed, in particular the ambient air conditions and ambient temperature conditions, are not sufficient for sufficient cooling of the oil container (1), then an additional cooling device must be assigned to it, which can be effective on the outside and / or its interior, for example, as shown in FIG. 5, in the form of cooling coils (27).
- an additional cooling device must be assigned to it, which can be effective on the outside and / or its interior, for example, as shown in FIG. 5, in the form of cooling coils (27).
- temperature sensors (28) can be provided, which can be used with external display instruments and, if necessary, with regulating devices for controlling the coolant supply Oil container (1) are connected.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
Das von hydraulischen Arbeitskreisen durch Leckage oder Absteuerung zum Ölbehälter rückgeleitete Öl ist in der Regel erwärmt, kann zumindest geringfügig verunreinigt und mit Luft durchsetzt sein. Außerdem erfolgt die Rückleitung, zumindest des abgesteuerten Öles, unter einem gewissen Druck, was im Ölbehälter zu einer starken Beunruhigung des dort bevorrateten Öles führt. Außerdem ist es z.B. für Reparaturen notwendig, zumindest Teile der hydraulischen Arbeitskreise, insbesondere deren Speicher abzulassen, wofür bisher entsprechende Behälter bereitgestellt werden mußten. Ziel der Erfindung ist es, den Ölbehälter so auszubilden, daß er über seine normale Reservoirfunktion hinaus auch andere Funktionen übernehmen kann. Es wird ein als Multifunktionsorgan ausgebildeter Ölbehälter (1) geschaffen, der durch interne Trennwände (9, 10, 11, 12) in mehrere Funktionsräume unterteilt ist, nämlich einen Sammelraum (5) zum bedarfsweisen Aufnehmen zumindest eines Großteils der systeminternen Ölmenge, einen Einspeiseraum (6) für Leckage- bzw.abgesteuertes Öl, einen sich ausgangs des letzteren anschließenden, von diesem durch eine öldurchlässige Trennwand (11) getrennten Überleitraum (7) und einen sich an letzterem ausgangs desselben anschließenden, von diesem durch eine ebenfalls öldurchlässige Trennwand getrennten Vorratsraum (8). Das in den Ölbehälter eingeleitete Leckage- bzw. abgesteuerte Öl wird beim Durchströmen des Einspeiseraumes (6) und Überleitraumes (7) zum Vorratsraum (8) gekühlt, beruhigt, gefiltert und von Luftanteilen getrennt. Gegebenenfalls sind im Ölbehälter (1) auch Mittel (24, 25) für eine Regelung zumindestens der von einem der Räume (5, 6, 7, 8) aufnehmbaren Ölmenge vorgesehen.The oil returned to the oil tank by hydraulic working groups through leakage or control is usually warmed up, can be at least slightly contaminated and mixed with air. In addition, the return line, at least of the oil that has been shut off, takes place under a certain pressure, which in the oil container leads to severe disturbance of the oil stored there. It is also e.g. for repairs necessary to drain at least parts of the hydraulic working groups, in particular their storage, for which previously appropriate containers had to be provided. The aim of the invention is to design the oil container so that it can also perform other functions beyond its normal reservoir function. An oil container (1) designed as a multi-functional organ is created, which is divided into several functional rooms by internal partition walls (9, 10, 11, 12), namely a collecting room (5) for receiving at least a large part of the system's internal oil volume, a feed room ( 6) for leakage or controlled oil, an outlet connecting the latter, separated from it by an oil-permeable partition (11), and a transfer chamber (7) adjoining the latter, separated from the latter by a likewise oil-permeable partition ( 8th). The leakage or discharged oil introduced into the oil container is cooled, calmed, filtered and separated from air components when it flows through the feed space (6) and transfer space (7) to the storage space (8). Optionally, means (24, 25) for regulating at least the amount of oil that can be received by one of the rooms (5, 6, 7, 8) are provided in the oil container (1).
Description
Die Erfindung betrifft einen Ölbehälter zur Ölversorgung von hydraulischen Arbeitskreisen mit Speicherfunktion, insbesondere von hydrostatischen Antriebs-, Brems-, Bremsenergierückgewinnungs- und Arbeitseinrichtungen in Fahrzeugen, Hub-, Förder- und dergleichen Anlagen, und zur Wiederaufnahme rückgeleiteten Öles.The invention relates to an oil tank for supplying oil to hydraulic working groups with a storage function, in particular of hydrostatic drive, braking, braking energy recovery and working devices in vehicles, lifting, conveying and similar systems, and for the recovery of returned oil.
Aus einem solchen Ölbehälter wird mittels einer Pumpe Hydrauliköl den hydraulischen Arbeitskreisen einer Anlage zugeführt. Bei dem Öl, das in den Ölbehälter rückgeleitet wird, handelt es sich um Leckageöl oder um, z.B. durch Druckbegrenzungsventile, abgesteuertes Öl. Dieses rückgeleitete Hydrauliköl hat in der Regel eine erhöhte Temperatur und kann mit Luft und Mikropartikeln durchsetzt sein. Üblicherweise sollte das aus dem Ölbehälter in den Kreislauf rückzuführende Hydrauliköl eine bestimmte Temperatur nicht überschreiten, sauber und blasenfrei sein. Hierfür sind bislang externe Kühlvorrichtungen, Filter und Luftabscheider vorgesehen worden. Dies erhöht jedoch in beträchtlichem Umfang den Kostenaufwand sowie den Platzbedarf der Anlage als solches. Darüber hinaus kann es z.B. für Reparaturzwecke notwendig sein, daß aus einem Speicher, der ein Teil eines hydraulischen Arbeitskreises bildet, das von diesem aufgenommene Öl abgelassen werden muß. Auch hierfür sind in der Regel eigene Behälter bereitzustellen.From such an oil tank, hydraulic oil is fed to the hydraulic working groups of a system by means of a pump. The oil that is returned to the oil container is leakage oil or e.g. through pressure relief valves, controlled oil. This returned hydraulic oil is usually at an elevated temperature and can be permeated with air and microparticles. Usually, the hydraulic oil to be returned from the oil tank to the circuit should not exceed a certain temperature, be clean and free of bubbles. External cooling devices, filters and air separators have hitherto been provided for this. However, this considerably increases the cost and the space requirement of the system as such. In addition, it can e.g. for repair purposes, it may be necessary to drain the oil absorbed by the accumulator, which forms part of a hydraulic working circuit. As a rule, separate containers must also be provided for this.
Es ist daher Aufgabe der Erfindung, den Ölbehälter der eingangs genannten Art so auszubilden, daß er über seine Funktion als Ölreservoir hinaus auch Zusatzfunktionen übernehmen kann.It is therefore an object of the invention to design the oil container of the type mentioned at the outset in such a way that it can also take on additional functions in addition to its function as an oil reservoir.
Diese Aufgabe ist erfindungsgemäß durch einen als Multifunktionsorgan ausgebildeten Ölbehälter mit Merkmalen der im Anspruch 1 gekennzeichneten Art gelöst.This object is achieved according to the invention by an oil container designed as a multifunctional organ with features of the type characterized in
Hierzu ist der Ölbehälter durch interne Trennwände in mehrere Funktionsräume unterteilt, nämlich einen Sammelraum zum bedarfsweisen Aufnehmen zumindest eines Großteils der systeminternen Ölmenge, einen Einspeiseraum für Leckage- bzw. abgesteuertes Öl, einen sich ausgangs des letzteren anschließenden, von diesem durch eine öldurchlässige Trennwand getrennten Überleitraum und einem Vorratsraum, der sich am Überleitraum ausgangs desselben, getrennt von diesem durch eine ebenfalls öldurchlässige, funktionsmäßig gleich wie die andere wirkende Trennwand, anschließt. Hierdurch wird in den Ölbehälter rückgeleitetes Öl beim Durchströmen vom Einspeiseraum über den Überleitraum zum Vorratsraum gekühlt, beruhigt, gefiltert und von Luftanteilen befreit.For this purpose, the oil tank is divided into several functional rooms by internal partitions, namely a collecting room for receiving at least a large part of the system's internal oil volume as required, a feed room for leakage or diverted oil, an outlet connecting the latter, separated from it by an oil-permeable partition and a storage space, which connects to the transition space at the outlet thereof, separated from it by an also oil-permeable, functionally identical partition wall. As a result, oil returned to the oil tank is cooled, calmed, filtered and freed of air as it flows through from the feed-in room via the transfer room to the storage room.
Mit der erfindungsgemäßen Lösung wird somit ein vorteilhafter Weg angegeben, wie mit einem einzigen Ölbehälter das in diesen rückgeleitete Öl gekühlt, gefiltert, beruhigt und von Luftanteilen befreit werden kann, so daß im Vorratsraum des Ölbehälters dann wieder ein hervorragend aufbereitetes, in die hydraulischen Arbeitskreise rückspeisbares Öl zur Verfügung steht. In den Sammelraum kann z.B. bei Reparaturen das Öl aus den Arbeitskreisen und insbesondere dem bzw. den Speichern abgelassen und nach Beendigung der Reparaturen auch wieder in das System rückgeleitet werden. Hierdurch kann die umständliche Bereithaltung von eigenständigen Ablaßbehältern entfallen.The solution according to the invention thus provides an advantageous way of cooling, filtering, calming and freeing air from the oil returned to it with a single oil container, so that an excellently prepared oil that can be fed back into the hydraulic working groups is then restored in the reservoir of the oil container Oil is available. The collection room can e.g. in the event of repairs, the oil is drained from the work groups and in particular from the store (s) and returned to the system after the repairs have been completed. As a result, the cumbersome provision of independent drain containers can be omitted.
Vorteilhafte Ausgestaltungen und Weiterbildungen des erfindungsgemäßen Ölbehälters sind in den Unteransprüchen gekennzeichnet.Advantageous refinements and developments of the oil container according to the invention are characterized in the subclaims.
Nachstehend sind Einzelheiten des erfindungsgemäßen Ölbehälters anhand der Zeichnung näher erläutert. In der Zeichnung zeigen:
Figur 1 weitgehend schematisiert ein Ausführungsbeispiel des Ölbehälters in Perspektivansicht,Figur 2 einen Längsschnitt durch den Ölbehälter gemäßFigur 1,Figur 3 eine Draufsicht auf den Ölbehälter gemäßFigur 1,- Figur 4 den Funktionsweg des in den Ölbehälter gemäß
Figur 1 rückgeleiteten Öles, Figur 5 eine Variante des Ölbehälters gemäßFigur 1 mit zusätzlicher Kühlung des in diesen rückgeleiteten Öles.
- FIG. 1 largely schematically shows an exemplary embodiment of the oil container in perspective view,
- FIG. 2 shows a longitudinal section through the oil container according to FIG. 1,
- FIG. 3 shows a top view of the oil container according to FIG. 1,
- FIG. 4 shows the functional path of the oil returned to the oil container according to FIG. 1,
- Figure 5 shows a variant of the oil container according to Figure 1 with additional cooling of the oil returned in this.
Der in der Zeichnung mit (1) bezeichnete Ölbehälter ist einem Hydrosystem mit hydraulischen Arbeitskreisen und einem oder mehreren hydraulichen Speichern (HDS, NDS) - siehe Figur 4 - zugeordnet. Dieses Hydrosystem kann beispielsweise Teil von hydrostatischen Antriebseinrichtungen, Bremseinrichtungen, Bremsenergierückgewinnungseinrichtungen, Arbeitseinrichtungen in Fahrzeugen, beispielsweise Nutzfahrzeugen, Hub-, Förder- oder dergleichen Anlagen sein.The oil tank designated by (1) in the drawing is assigned to a hydraulic system with hydraulic working circuits and one or more hydraulic accumulators (HDS, NDS) - see FIG. 4. This hydraulic system can, for example, be part of hydrostatic drive devices, braking devices, braking energy recovery devices, working devices in vehicles, for example commercial vehicles, lifting, conveying or similar systems.
Der Ölbehälter (1) besteht aus einer Außenwand (2), einem Boden (3) und einem Deckel (4). Im Ölbehälter (1) sind mehrere Funktionsräume vorgesehen, nämlich ein Sammelraum (5), ein Einspeiseraum (6), ein Überleitraum (7) und ein Vorratsraum (8). Diese Funktionsräume sind durch interne Aufteilung des Ölbehälters (1) durch Trennwände gegeneinander abgegrenzt. Der Sammel raum (5), welcher zum bedarfsweisen Aufnehmen zumindest eines Großteils der systeminternen Ölmenge beispielsweise im Falle der Reparatur dient, ist durch das Vorsehen eines eine Trennwand bildenden Zwischenbodens (9) realisiert, der den Ölbehälter (1) quer unterteilt und beim dargestellten Ausführungsbeispiel zusammen mit dem oberen Behälterteil raummäßig den Sammelraum (5) begrenzt. Der untere Behälterteil ist beim dargestellten Ausführungsbeispiel durch eine undurchlässige Trennwand (10) sowie zwei sich endseitig, beiderseits derselben anschließende öldurchlässige Trennwände (11, 12) zur Bildung des Einspeiseraumes (6), Überleitraumes (7) und Vorratsraumes (8) unterteilt. Dabei erstrecken sich die Trennwände (10, 11, 12) jeweils von der Innenseite der Außenwand (2) des Ölbehälters (1) ausgehend zwischen dem Ölbehälter-Boden (3) und dem Zwischenboden (9). Der Einspeiseraum (6) dient zur Aufnahme von Leckage- bzw. aus den hydraulischen Arbeitskreisen abgesteuertem Öl, wobei an der Außenwand (2) des Ölbehälters (1) Bereich des Einspeiseraumes (6) eine Öffnung und unter Abdekkung derselben außen davor Vorkehrungen, z.B. in Form eines Anschlußblockes (13), für den Anschluß von Leckageöl- und Absteuerrückleitungen (14, 15) vorgesehen sind. Ausgangs des Einspeiseraumes (6) schließt sich, von diesem getrennt durch die öldurchlässige Wand (11), der Überleitraum (7) an. Letzterer ist über eine, beispielsweise mittels eines Hahnes (16), gegebefenfalls auch ein fernsteuerbares Ventil, absperrbare Leitung (17) mit dem Sammelraum (5) verbunden. Auf diese Weise ist eine Einleitung von Öl aus dem System und Wiedereinleitung dieses Öles in das System ölbehälterintern über den Überleitraum (7) durchführbar. Das aus dem System abzulassende Öl könnte jedoch auch direkt dem Sammelraum (5) zugeführt und gegebenenfalls aus diesem auch direkt wieder in das System rückgeleitet werden.The oil container (1) consists of an outer wall (2), a bottom (3) and a cover (4). A number of functional rooms are provided in the oil tank (1), namely a collecting room (5), a feed-in room (6), a transfer room (7) and a storage room (8). These functional spaces are separated from one another by the internal division of the oil container (1) by partitions. The gathering Space (5), which is used for receiving at least a large part of the system-internal oil quantity, for example in the case of repairs, is realized by providing an intermediate floor (9) which forms a partition and divides the oil container (1) transversely and in the illustrated embodiment together with the upper part of the container limits the collection space (5). In the illustrated embodiment, the lower part of the container is divided by an impermeable partition (10) and two oil-permeable partition walls (11, 12) adjoining it at the ends, on both sides, to form the feed space (6), transfer space (7) and storage space (8). The partitions (10, 11, 12) each extend from the inside of the outer wall (2) of the oil tank (1) between the oil tank bottom (3) and the intermediate floor (9). The feed space (6) serves to accommodate leakage or oil that has been shut off from the hydraulic working circuits, whereby on the outer wall (2) of the oil reservoir (1) area of the feed space (6) there is an opening and, taking the same outside, precautions, e.g. in Form of a connection block (13), for the connection of leakage oil and control return lines (14, 15) are provided. The outlet of the feed space (6), separated from it by the oil-permeable wall (11), is connected to the transfer space (7). The latter is connected to the collecting space (5) via a line (17) which can be shut off, for example by means of a tap (16), optionally also a remote-controllable valve. In this way, oil can be introduced from the system and this oil can be reintroduced into the system inside the oil tank via the transfer chamber (7). The oil to be drained from the system could, however, also be fed directly to the collecting space (5) and, if necessary, returned directly to the system.
Außerdem steht der Überleitraum (7) mit dem Vorratsraum (8) in Verbindung, wobei der Überleitraum (7) ausgangs vom Vorratsraum (8) durch die öldurchlässige Trennwand (12) getrennt ist. Das in den Ölbehälter (1) rückgeleitete Leckageöl bzw. aus den hydraulischen Arbeitskreisen abgesteuerte Öl gelangt, wie aus dem Schema gemäß Figur 4 ersichtlich, zunächst in den Einspeiseraum (6) und fließt dann weiter durch die öldurchlässige Trennwand (11) in den Überleitraum (7) und von diesem dann durch die öldurchlässige Trennwand (12) in den Vorratsraum (8). Während dieser Durchströmung wird das in den Einspeiseraum (6) eingespeiste Öl beruhigt, gekühlt, gefiltert und von etwaigen vorhandenen Luftanteilen befreit. Die Beruhigung, Filterung und Luftabscheidung erfolgt dabei an und in Verbindung mit den öldurchlässigen Trennwänden (11, 12). Im Bereich des Vorratsraumes (8) sind an der Außenwand (2) des Ölbehälters (1) Vorkehrungen, z.B. ein Rohrstutzen (18) mit Anschlußflansch, zur Herstellung der Verbindung mit einer Pumpe (P) vorgesehen, mit der Öl aus dem Vorratsraum (8) in die hydraulischen Arbeitskreise einspeisbar ist. Am Vorratsraum (8) ist des weiteren ein bis zur Außenseite des Ölbehälters (1) führender Öleinfüllstutzen (19) angeschlossen, der beim dargestellten Ausführungsbeispiel am Zwischenboden (9) befestigt, insbesondere angeschweißt ist, nach oben aus dem Ölbehälter (1) herausragt und dort durch einen Deckel (20) mit Entlüftungsvorrichtung verschließbar ist. Ferner ist zumindest einem Großteil, vorzugsweise jedoch der Räume (5, 6, 7, 8) jeweils eine Ölablaßschraube (21) an geeigneter Stelle der Außenseite des Ölbehälters (1) zugeordnet. Darüber hinaus sind zumindest einem Teil der Räume (5, 6, 7, 8) zur Anzeige des jeweiligen Ölfüllstandes entsprechende Anzeigeinstrumente zugeordnet. Diese können direkt am Ölbehälter (1) angebracht und/oder für Fernüberwachung mit entsprechenden, am bzw. im Ölbehälter (1) angebrachten Niveaugebern über Geberleitungen verbunden sein. Im dargestellten Ausführungsbeispiel sind dabei ein Schauglas (22) für Ölstand im Oberleitraum (7), ein Schauglas (29) für Ölstand im Sammelraum (S) sowie ein Niveaugeber (23) dem Vorratsraum (8) zugeordnet. Der Niveaugeber (23) ist mit seinen Ölstandsgeberorganen (25) in bzw. an einem Steigrohr (24) angeordnet, das am Zwischenboden (9) befestigt ist und sich durch den Sammelraum (5) zur Oberseite des Ölbehälters (1) erstreckt. Dieses Steigrohr (24) ist mit einem Deckel (26) versehen, an dem ein Niveaugeber (23) angeordnet ist.In addition, the transfer space (7) is connected to the storage space (8), the transfer space (7) being separated from the storage space (8) by the oil-permeable partition (12). The leakage oil returned to the oil tank (1) or the oil that is diverted from the hydraulic working circuits first arrives in the feed space (6), as can be seen in the diagram according to FIG. 4, and then flows further through the oil-permeable partition (11) into the transfer space ( 7) and then through the oil-permeable partition (12) into the storage room (8). During this flow, the oil fed into the feed space (6) is calmed, cooled, filtered and any air components present are removed. Calming, filtering and air separation take place on and in connection with the oil-permeable partition walls (11, 12). In the area of the storage space (8), precautions are provided on the outer wall (2) of the oil container (1), for example a pipe socket (18) with a connecting flange, for establishing the connection with a pump (P) with which oil from the storage space (8 ) can be fed into the hydraulic working groups. An oil filler neck (19) leading to the outside of the oil tank (1) is also connected to the storage room (8), which in the illustrated embodiment is attached to the intermediate floor (9), in particular welded, protrudes upward from the oil tank (1) and there can be closed by a cover (20) with a ventilation device. Furthermore, at least a large part, but preferably the rooms (5, 6, 7, 8), are each assigned an oil drain screw (21) at a suitable point on the outside of the oil container (1). In addition, at least some of the rooms (5, 6, 7, 8) are assigned corresponding display instruments for displaying the respective oil level. These can be attached directly to the oil tank (1) and / or for remote monitoring with appropriate, on or in the oil tank (1) attached level sensors via sensor lines. In the exemplary embodiment shown, a sight glass (22) for the oil level in the upper control space (7), a sight glass (29) for the oil level in the collecting space (S) and a level sensor (23) are assigned to the storage space (8). The level sensor (23) is arranged with its oil level sensor elements (25) in or on a riser pipe (24) which is attached to the intermediate floor (9) and extends through the collecting space (5) to the top of the oil container (1). This riser pipe (24) is provided with a cover (26) on which a level sensor (23) is arranged.
Die beiden öldurchlässigen Trennwände (11, 12) sind vorzugsweise austauschbar im Ölbehälter (1) angeordnet und können in diesem Fall beispielsweise als vom Boden (3) oder der Außenwand (2) des Ölbehälters (1) her durch entsprechende Öffnungen einführbare bzw. wieder herausnehmbare und intern in entsprechenden Führungen aufgenommene Einschuborgane ausgebildet sein, was im dargestellten Ausführungsbeispiel der Fall und schematisiert angedeutet ist.The two oil-permeable partitions (11, 12) are preferably arranged interchangeably in the oil container (1) and in this case can be inserted or removed, for example, from the bottom (3) or the outer wall (2) of the oil container (1) through corresponding openings and insertion elements accommodated internally in corresponding guides can be formed, which is the case and indicated schematically in the exemplary embodiment shown.
Um etwaige notwendige Reinigungen seiner Räume (5, 6, 7, 8) zu ermöglichen, ist es zweckmäßig, wenn der Ölbehälter (1) mit einem abnehmbaren Deckel (4), gegebenenfalls auch mit abnehmbarem Boden (3) oder abnehmbaren Außenwandteilen ausgestattet ist.In order to enable any necessary cleaning of his rooms (5, 6, 7, 8), it is expedient if the oil container (1) is equipped with a removable cover (4), optionally also with a removable bottom (3) or removable outer wall parts.
Der Ölbehälter (1) ist an geeigneter Stelle der mit Öl zu versorgenden bzw. entsorgenden Anlage angeordnet. Sofern die Umgebungsbedingungen, denen der Ölbehälter (1) ausgesetzt ist, insbesondere die Umgebungsluftbedingungen und Umgebungstemperatur bedingungen, nicht für eine ausreichende Kühlung des Ölbehälters (1) genügen, dann ist diesem eine zusätzliche Kühleinrichtung zuzuordnen, die an seiner Außenseite und/oder dessen Innenraum, z.B. wie in Figur 5 gezeigt, in Form durchgeführter Kühlschlangen (27) wirksam werden kann. Generell können zur Überwachung der Öltemperatur im Öbehälter (1) an geeigneten Stellen, z.B. im Bereich des Einspeiseraumes (6) und Vorratsraumes (8), Temperaturfühler (28) vorhanden sein, die mit externen Anzeigeinstrumenten und gegebenenfalls mit Regeleinrichtungen für die Steuerung der Kühlmittelzufuhr zum Ölbehälter (1) verbunden sind.The oil tank (1) is arranged at a suitable point in the system to be supplied with oil. If the ambient conditions to which the oil container (1) is exposed, in particular the ambient air conditions and ambient temperature conditions, are not sufficient for sufficient cooling of the oil container (1), then an additional cooling device must be assigned to it, which can be effective on the outside and / or its interior, for example, as shown in FIG. 5, in the form of cooling coils (27). In general, for monitoring the oil temperature in the oil tank (1) at suitable points, for example in the area of the feed-in room (6) and storage room (8), temperature sensors (28) can be provided, which can be used with external display instruments and, if necessary, with regulating devices for controlling the coolant supply Oil container (1) are connected.
Mit dem erfindungsgemäßen Ölbehälter ist somit ein Organ geschaffen, in dem praktisch alle für die Wiederaufbereitung rückgeleiteten Öles notwendigen Maßnahmen mit vergleichsweise einfachen Mitteln durchführbar sind. Der Ölbehälter ist unkompliziert aufgebaut und daher auch günstig herzustellen.With the oil container according to the invention, an organ is thus created in which practically all of the measures required for the reprocessing of the oil can be carried out with comparatively simple means. The oil tank is uncomplicated and therefore inexpensive to manufacture.
Claims (11)
dadurch gekennzeichnet,
daß der Ölbehälter (1) als Multifunktionsorgan ausgebildet und hierzu durch interne Trennwände (9, 10, 11, 12) in mehrere Funktionsräume unterteilt ist, nämlich einem Sammelraum (5) zum bedarfsweisen Aufnehmen zumindest eines Großteils der systeminternen Ölmenge, einem Einspeiseraum (6) für Leckagebzw. abgesteuertes Öl, einem sich ausgangs des letzteren anschließenden, von diesem durch eine öldurchlässige Trennwand (11) getrennten Überleitraum (7) und einem sich ausgangs des letzteren anschließenden, von diesem ebenfalls durch eine öldurchlässige Trennwand (12) getrennten Vorratsraum (8), so daß in den Ölbehälter (1) rückgeleitetes Öl beim Durchströmen vom Einspeiseraum (6) über den Überleitraum (7) zum Vorratsraum (8) gekühlt, beruhigt, gefiltert und von Luftanteilen befreit wird.1. Oil container for supplying oil to hydraulic working groups with a storage function, in particular of hydrostatic drive, braking, braking energy recovery and working devices in vehicles, lifting, conveying or similar systems and for the recovery of returned oil,
characterized,
that the oil container (1) is designed as a multifunctional organ and is divided into several functional spaces by internal partitions (9, 10, 11, 12), namely a collecting space (5) for receiving at least a large part of the system's internal oil volume, a feed space (6) for leakage controlled oil, an outlet of the latter, which is separated from it by an oil-permeable partition (11), and an outlet of the latter, which is also separated by an oil-permeable partition (12), so that Oil flowing back into the oil tank (1) is cooled, calmed, filtered and freed from air components as it flows through from the feed-in area (6) via the transfer area (7) to the storage area (8).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87116360T ATE81388T1 (en) | 1986-12-18 | 1987-11-06 | OIL TANK FOR OIL SUPPLY OF HYDRAULIC WORKING CIRCUITS WITH ACCUMULATION FUNCTION AND FOR RECOVERY OF RETURNED OILS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3643265 | 1986-12-18 | ||
DE19863643265 DE3643265A1 (en) | 1986-12-18 | 1986-12-18 | OIL CONTAINER FOR THE OIL SUPPLY OF HYDRAULIC WORKING CIRCUITS WITH STORAGE FUNCTION AND FOR RECOVERY OF OIL RECEIVED |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0271702A2 true EP0271702A2 (en) | 1988-06-22 |
EP0271702A3 EP0271702A3 (en) | 1990-04-25 |
EP0271702B1 EP0271702B1 (en) | 1992-10-07 |
Family
ID=6316484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87116360A Expired - Lifetime EP0271702B1 (en) | 1986-12-18 | 1987-11-06 | Oil container for supplying hydraulic working circuits serving for accumulation and resumption of returned oil |
Country Status (5)
Country | Link |
---|---|
US (1) | US4809745A (en) |
EP (1) | EP0271702B1 (en) |
AT (1) | ATE81388T1 (en) |
DE (2) | DE3643265A1 (en) |
DK (1) | DK161778C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989008783A1 (en) * | 1988-03-08 | 1989-09-21 | Mattsson Karl Erik | A method of reducing pressure drop during the passage of a fluid, and a hydraulic system reservoir for circulation of a fluid |
EP0530685A1 (en) * | 1991-09-04 | 1993-03-10 | Koyo Seiko Co., Ltd. | Oil tank |
EP4074966A1 (en) * | 2021-04-16 | 2022-10-19 | Robert Bosch GmbH | Tank and assembly with a tank |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3835222A1 (en) * | 1988-10-15 | 1990-04-19 | Rahmer & Jansen Gmbh | Hydraulic oil tank |
JP2719002B2 (en) * | 1989-08-17 | 1998-02-25 | 日産自動車株式会社 | Fuel tank baffle structure |
US6035930A (en) * | 1998-06-30 | 2000-03-14 | Nelson Industries, Inc. | Power steering reservoir and cooler |
US6220283B1 (en) * | 2000-02-16 | 2001-04-24 | Daimlerchrysler Corporation | Low silhouette power steering fluid reservoir |
FR2830580B1 (en) * | 2001-10-10 | 2005-09-30 | Bosch Gmbh Robert | HYDRAULIC TANK HAVING A MEANS FOR REDUCING THE QUANTITY OF SUSPENDED AIR BUBBLES IN A HYDRAULIC FLUID |
DE10318114A1 (en) * | 2003-04-22 | 2004-11-11 | Robert Bosch Gmbh | Electro-hydraulic brake system |
KR100569465B1 (en) * | 2003-11-04 | 2006-04-07 | 현대자동차주식회사 | A reservoir tank in the power steering device of automobile |
DE102004015960A1 (en) * | 2004-03-02 | 2005-09-29 | Zf Lenksysteme Gmbh | Hydraulic pump for supplying fluid under pressure to user, with intake for low-pressure returned fluid, has pressure-limiting valve below partition wall of chamber with guide walls |
US7886768B2 (en) | 2004-11-04 | 2011-02-15 | Komatsu Ltd. | Hydraulic fluid tank |
US8181746B2 (en) * | 2008-09-18 | 2012-05-22 | United Technologies Corporation | Continuous supply fluid reservoir |
US8038878B2 (en) * | 2008-11-26 | 2011-10-18 | Mann+Hummel Gmbh | Integrated filter system for a coolant reservoir and method |
US8241010B2 (en) * | 2009-12-03 | 2012-08-14 | Caterpillar Global Mining Llc | Hydraulic reservoir for hydraulic regenerative circuit |
US8491707B2 (en) * | 2010-05-24 | 2013-07-23 | Helgesen Design Services, Llc | Fluid storage tank configured to remove entrained air from fluid |
US8960227B2 (en) * | 2012-03-16 | 2015-02-24 | Caterpillar Sarl | Hydraulic fluid tank |
FR3010133B1 (en) * | 2013-09-02 | 2015-10-02 | Snecma | RESERVOIR COMPRISING AN INCLINED FENCE WITH ITS ENDS OF THROUGH ORIFICES FOR CONTINUOUS SUPPLY OF TURBOMACHINE TO FEEDING LIQUID |
CN103821780B (en) * | 2014-03-12 | 2016-08-17 | 石河子开发区合创农机装备有限公司 | A kind of hydraulic oil container |
DE102014223947A1 (en) * | 2014-11-25 | 2016-05-25 | Robert Bosch Gmbh | Cooling device for a hydraulic unit and use of a cooling device |
RU2613343C2 (en) * | 2014-12-16 | 2017-03-16 | Общество с ограниченной ответственностью "МашНефтеГаз" | Circular lubrication hydraulic unit |
CN105736487B (en) * | 2016-05-09 | 2017-03-29 | 山东科技大学 | A kind of efficiently integrated fuel tank of integrated sedimentation, cooling and Filtration Adsorption function and its application |
DE102016216698A1 (en) | 2016-09-05 | 2018-03-08 | Robert Bosch Gmbh | Tank and electro-hydraulic compact unit with one tank |
CN110529440B (en) * | 2019-09-24 | 2020-09-15 | 哈尔滨工业大学 | Hydraulic oil tank for oil return power driving belt graphene heat conduction fan |
CN111828414B (en) * | 2020-07-20 | 2024-08-13 | 广东盈威流体控制技术股份有限公司 | Compact energy-saving servo power unit |
US20220220983A1 (en) * | 2021-01-11 | 2022-07-14 | Deere & Company | Apparatuses and methods for de-aeration of a liquid |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2715569A1 (en) * | 1977-04-07 | 1978-10-12 | Volkswagenwerk Ag | Disconnecting device for hydraulic system - has float in tank and another in separate chamber, together operating disconnector |
US4210176A (en) * | 1978-09-14 | 1980-07-01 | J. I. Case Company | Hydraulic liquid reservoir with internal baffle |
DE3513143A1 (en) * | 1985-04-12 | 1986-10-16 | Franz 5413 Bendorf Hübner | Hydraulic system for mobile and/or stationary operation |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2429280A (en) * | 1941-09-19 | 1947-10-21 | Scully Signal Co | Liquid level indicating means |
US2669254A (en) * | 1948-04-21 | 1954-02-16 | Bucyrus Erie Co | Velocity-reducing and filtering inlet for hydraulic tanks |
US2870786A (en) * | 1954-06-08 | 1959-01-27 | Schroeder Brothers | Oil reservoir for hydraulic equipment |
US3574987A (en) * | 1970-02-18 | 1971-04-13 | Mojonnier Bros Co | Vacuum deaerator device |
US3889705A (en) * | 1973-08-30 | 1975-06-17 | Northrop Corp | Hydraulic system reservoir having separate oil and air-oil chambers |
DE2361479A1 (en) * | 1973-12-10 | 1975-06-26 | Kiener & Borst Ohg | Oil circulating system - accurately controls change of oil and monitors residue of old oil |
US3977189A (en) * | 1975-07-02 | 1976-08-31 | Kubik Philip A | Reservoir housing |
DE2711137C2 (en) * | 1977-03-15 | 1985-01-03 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Hydraulic system with a reservoir for the liquid pressure medium |
DE3014148C2 (en) * | 1980-04-12 | 1985-11-28 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Oil separator for compressors in heat pumps and chillers |
US4587992A (en) * | 1984-05-17 | 1986-05-13 | Thompson Donald E | Hydraulic reservoir with contamination separation |
US4608062A (en) * | 1985-03-13 | 1986-08-26 | Container Products Corporation | Contaminated air/water recovery apparatus |
-
1986
- 1986-12-18 DE DE19863643265 patent/DE3643265A1/en active Granted
-
1987
- 1987-11-06 US US07/118,392 patent/US4809745A/en not_active Expired - Fee Related
- 1987-11-06 DE DE8787116360T patent/DE3782148D1/en not_active Expired - Fee Related
- 1987-11-06 AT AT87116360T patent/ATE81388T1/en active
- 1987-11-06 EP EP87116360A patent/EP0271702B1/en not_active Expired - Lifetime
- 1987-11-13 DK DK596287A patent/DK161778C/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2715569A1 (en) * | 1977-04-07 | 1978-10-12 | Volkswagenwerk Ag | Disconnecting device for hydraulic system - has float in tank and another in separate chamber, together operating disconnector |
US4210176A (en) * | 1978-09-14 | 1980-07-01 | J. I. Case Company | Hydraulic liquid reservoir with internal baffle |
DE3513143A1 (en) * | 1985-04-12 | 1986-10-16 | Franz 5413 Bendorf Hübner | Hydraulic system for mobile and/or stationary operation |
Non-Patent Citations (3)
Title |
---|
DE-Zeitschrift "Fluid", Oktober 1974,S.52 bis 55 * |
HYDRAULICS AND PNEUMATICS. no. 7, Juli 1980, CLEVELAND US Seiten 90 - 92; P.C.Hyde: "Reservoir for mobile equipment: a design primer " * |
SOVIET INVENTIONS ILLUSTRATED,Derwent Publications Ltd, Sektion Mechanik,Woche 8736, Zusammenfassung Nr.255554,Q57,16.Sep.1987 &SU-A-1285219(DNEPR HEAVY PRESS),23.Jan.1987 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989008783A1 (en) * | 1988-03-08 | 1989-09-21 | Mattsson Karl Erik | A method of reducing pressure drop during the passage of a fluid, and a hydraulic system reservoir for circulation of a fluid |
EP0530685A1 (en) * | 1991-09-04 | 1993-03-10 | Koyo Seiko Co., Ltd. | Oil tank |
US5356535A (en) * | 1991-09-04 | 1994-10-18 | Koyo Seiko Co., Ltd. | Oil tank |
EP4074966A1 (en) * | 2021-04-16 | 2022-10-19 | Robert Bosch GmbH | Tank and assembly with a tank |
Also Published As
Publication number | Publication date |
---|---|
ATE81388T1 (en) | 1992-10-15 |
DE3643265A1 (en) | 1988-07-07 |
DK161778C (en) | 1992-01-20 |
EP0271702B1 (en) | 1992-10-07 |
DE3782148D1 (en) | 1992-11-12 |
US4809745A (en) | 1989-03-07 |
DK596287D0 (en) | 1987-11-13 |
EP0271702A3 (en) | 1990-04-25 |
DK161778B (en) | 1991-08-12 |
DK596287A (en) | 1988-06-19 |
DE3643265C2 (en) | 1990-01-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0271702A2 (en) | Oil container for supplying hydraulic working circuits serving for accumulation and resumption of returned oil | |
EP1766207B1 (en) | Oil/coolant module with coolant treatment system | |
EP0067928B1 (en) | Heating system using lubricatiom oil throttling for motor vehicles | |
EP0782673B1 (en) | Hydraulic circuit | |
DE2712778A1 (en) | DEVICE AND PROCEDURE FOR DRAINING AND REFILLING THE OIL SUMP OF A MOTOR VEHICLE | |
EP1846193A1 (en) | Cooling device | |
DE2348572C2 (en) | Aftercooler for cooling and cleaning compressed air | |
EP0494725B1 (en) | Central lubricating unit | |
DE102008008466A1 (en) | Fluid displacement reservoir | |
DE1761106C3 (en) | Filters for cleaning liquids mixed with solids | |
DE69410330T2 (en) | Hydraulic system | |
DE19711591A1 (en) | Fluid cooling device | |
EP0213414A1 (en) | Operation means container in a motor vehicle | |
EP0149800B1 (en) | Oil reservoir for a hydraulic system | |
EP0052182A1 (en) | Heating system in combination with a I.C. Engine | |
DE60214866T2 (en) | FILTER CONSTRUCTION FOR SWIMMING POOL | |
DE102016214560A1 (en) | Method and device for cleaning and / or replacing hydraulic oil in hydraulic drives | |
DE102004040909A1 (en) | unit | |
EP3683077A1 (en) | Cooling device | |
EP1664548B1 (en) | Construction-kit system | |
DE3812806C2 (en) | ||
EP0998624B1 (en) | Conditioning unit for lubricating oil | |
DE69814594T2 (en) | A LUBRICATION CIRCUIT SYSTEM | |
EP0001742B1 (en) | Receptacle for balancing the cooling water of a combustion engine | |
DE2328899A1 (en) | HYDRAULIC FLUID CIRCUIT FOR A MOTOR VEHICLE |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE FR GB IT LI NL |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MAN NUTZFAHRZEUGE AKTIENGESELLSCHAFT |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI NL |
|
17P | Request for examination filed |
Effective date: 19900315 |
|
17Q | First examination report despatched |
Effective date: 19910417 |
|
ITF | It: translation for a ep patent filed | ||
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19920925 Year of fee payment: 6 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI NL |
|
REF | Corresponds to: |
Ref document number: 81388 Country of ref document: AT Date of ref document: 19921015 Kind code of ref document: T |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19921019 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19921021 Year of fee payment: 6 |
|
ET | Fr: translation filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19921026 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19921110 Year of fee payment: 6 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
REF | Corresponds to: |
Ref document number: 3782148 Country of ref document: DE Date of ref document: 19921112 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19921127 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19921130 Year of fee payment: 6 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19931106 Ref country code: AT Effective date: 19931106 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19931130 Ref country code: CH Effective date: 19931130 Ref country code: BE Effective date: 19931130 |
|
BERE | Be: lapsed |
Owner name: MAN NUTZFAHRZEUGE A.G. Effective date: 19931130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19940601 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19931106 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19940729 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19940802 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20051106 |