EP0271702B1 - Réservoir d'huile pour l'alimentation d'un circuit hydraulique de travail avec la fonction d'accumulation et pour la reprise d'huile retournée - Google Patents

Réservoir d'huile pour l'alimentation d'un circuit hydraulique de travail avec la fonction d'accumulation et pour la reprise d'huile retournée Download PDF

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Publication number
EP0271702B1
EP0271702B1 EP87116360A EP87116360A EP0271702B1 EP 0271702 B1 EP0271702 B1 EP 0271702B1 EP 87116360 A EP87116360 A EP 87116360A EP 87116360 A EP87116360 A EP 87116360A EP 0271702 B1 EP0271702 B1 EP 0271702B1
Authority
EP
European Patent Office
Prior art keywords
oil
oil container
compartment
container
space
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.)
Expired - Lifetime
Application number
EP87116360A
Other languages
German (de)
English (en)
Other versions
EP0271702A3 (en
EP0271702A2 (fr
Inventor
Rudolf Hörmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Priority to AT87116360T priority Critical patent/ATE81388T1/de
Publication of EP0271702A2 publication Critical patent/EP0271702A2/fr
Publication of EP0271702A3 publication Critical patent/EP0271702A3/de
Application granted granted Critical
Publication of EP0271702B1 publication Critical patent/EP0271702B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 container designed as a multifunctional organ with features according to the preamble of claim 1.
  • Such an oil container is known from US-A-4, 210 176.
  • Such a subdivision of the oil container is made by partition walls that the feed space and storage space in the lower container area and the transfer room in the upper container area, covering both of the aforementioned spaces, is arranged.
  • the two lower rooms are vented by means of a vent pipe attached centrally to the top of the partition.
  • this method requires a feed space and a storage space with a trapezoidal cross-section delimited at the top by the appropriately roof-shaped partition wall to the transfer space in order to allow the separated air bubbles to rise and lead to the ventilation pipe at the highest point enable.
  • the feed-in area and the storage area are sealed off from one another by a vertical, oil-impermeable partition wall extending from the container floor to the roof-shaped partition wall.
  • a vertical, oil-impermeable partition wall extending from the container floor to the roof-shaped partition wall.
  • an oil container is known from the DE magazine "fluid, October 1974, pages 52 to 55", which should and can perform certain functions. As a result, however, this only leads to a two-chamber container with a feed space for returned oil and a storage space for cleaned oil.
  • the two rooms arranged side by side in a straight flow direction are only divided by a single oil-permeable partition. This partition ensures calming, filtering and air release of the returned oil. Cooling hardly seems possible.
  • the calming, filtering and air evacuation of the oil within the known container of the Effectiveness of the single partition depends, which depending on the genus is usually suitable for one or the other purpose.
  • Hydraulic oil can be pumped out of such an oil container in an application, for example by means of a pump, and hydraulic working groups can be supplied to a system.
  • 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 also been provided as an alternative for this purpose. However, this considerably increases the cost and the space requirement of the system as such.
  • oil that is returned can be effectively cooled, filtered, calmed and freed from air components, so that an excellently prepared oil that can be fed back into the hydraulic working groups is then available again in the oil tank storage room.
  • the oil from the working groups and in particular from the store or stores can be drained into the collecting space, for example during repairs, and after the repair has ended can also be returned to the system.
  • the cumbersome provision of independent drain containers can be omitted.
  • the oil tank designated 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 container 1, namely a collecting room 5, a feed-in room 6, a transfer room 7 and a storage room 8. These functional spaces are delimited from one another by internal division of the oil container 1 by partitions.
  • the gathering room 5, which serves for receiving at least a large part of the system-internal oil quantity, for example in the case of repairs, is realized by the provision of an intermediate floor 9 forming an oil-impermeable partition wall, which divides the oil container 1 transversely and, in the exemplary embodiment shown, together with the upper container part, the collection space 5 limited.
  • the lower part of the container is divided by an oil-impermeable partition 10 and two oil-permeable partitions 11, 12 adjoining it at the ends and on both sides to form the feed space 6, the transfer space 7 and the storage space 8.
  • the partitions 10, 11, 12 each extend from the inside of the outer wall 2 of the oil container 1 between the oil container base 3 and the intermediate base 9.
  • the feed space 6 serves to receive leakage oil or oil which has been discharged from the hydraulic working groups, with an opening on the outer wall 2 of the oil container 1 in the region of the feed space 6 and, taking the same outside, precautions, for example in the form of a connection block 13, for the Connection of leakage oil and control oil return lines 14, 15 are provided.
  • 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, and possibly also by means of a remotely controllable valve.
  • 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, also be returned directly to the system.
  • 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 wall 12.
  • the oil fed into the feed space 6 is calmed, cooled, filtered and freed from any air components present.
  • the calming, filtering and air separation takes place on and in connection with the oil-permeable partition walls 11, 12.
  • a pipe socket 18 with a connecting flange for establishing the connection to a pump P with which oil from the storage room 8 can be fed into the hydraulic working groups.
  • an oil filler neck 19 leading to the outside of the oil container 1 is connected to the reservoir 8, which in the illustrated embodiment is attached to the intermediate floor 9, in particular welded on, protrudes upward from the oil container 1 and can be closed there by a cover 20 with a ventilation device.
  • at least a large part, but preferably all of the spaces 5, 6, 7, 8 are each assigned an oil drain screw 21 at a suitable point on the outside of the oil container 1.
  • the rooms 5, 6, 7, 8 are assigned corresponding display instruments for displaying the respective oil level.
  • These can be attached directly to oil tank 1 and / or for remote monitoring with appropriate, on or level sensors installed in the oil reservoir 1 can be connected via sensor lines.
  • a sight glass 22 for the oil level is assigned to the transfer space 7, a sight glass 29 for the oil level to the collecting space 5 and a level sensor 23 for the storage space 8.
  • the level sensor 23 is arranged with its oil level transmitter elements 25 in or on a riser pipe 24 which is fastened 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, for example, from the bottom 3 or the outer wall 2 of the oil container 1 through corresponding openings or as the removable and inside the oil container in corresponding guides Insert elements can be formed, which is the case and indicated schematically in the illustrated embodiment.
  • 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 container 1 is arranged at a suitable point in the system to be supplied or disposed with oil. If the ambient conditions to which the oil container 1 is exposed, in particular the ambient air conditions and ambient temperature conditions, is 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 in 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 in its interior, for example as shown in FIG. 5, in the form of cooling coils 27.
  • temperature sensors 28 can be present, which are connected to external display instruments and, if appropriate, to regulating devices for controlling the coolant supply to the oil container 1.

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)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Claims (9)

  1. Réservoir d'huile (1) réalisé sous la forme d'un organe en fonctions multiples pour des systèmes hydrauliques comportant des circuits de travail avec des accumulateurs de pression (HDS, NDS), réservoir qui est subdivisé en plusieurs chambres fonctionnelles par des parois de séparation internes (9, 10, 11, 12), à savoir une chambre d'alimentation (6) pour l'huile retournée, une chambre de transit (7) se raccordant à la sortie de la précédente et séparée de celle-ci par une paroi de séparation (11) perméable à l'huile, et une chambre de réserve (8) se raccordant à la sortie de la précédente, également séparée de celle-ci par une paroi de séparation perméable à l'huile, et prévue pour alimenter en huile des circuits hydrauliques de travail raccordés au réservoir, de sorte que l'huile ramenée dans le réservoir d'huile (1), lors de son passage à travers la chambre d'alimentation (6) et la chambre de transit (7) vers la chambre de réserve (8), se repose et est libérée de ses inclusions d'air, réservoir d'huile caractérisé en ce qu'il comporte également encore une quatrième chambre fonctionnelle, à savoir une chambre collectrice (5) pour recevoir en cas de besoin, au moins une majeure partie de la quantité d'huile se trouvant dans les circuits hydrauliques de travail munis d'accumulateurs sous pression (HDS, NDS), en ce que le réservoir d'huile (1), pour permettre de constituer les chambres fonctionnelles (5, 6, 7, 8) est divisé transversalement par un fond intermédiaire (9) constituant une paroi de séparation imperméable à l'huile, et qui conjointement avec la partie supérieure du réservoir d'huile, délimite la chambre collectrice (5), tandis que la partie inférieure du réservoir d'huile est subdivisée en partie dans le sens longitudinal, par une paroi de séparation (10) non perméable à l'huile, ainsi que par deux parois de séparation (11, 12) perméables à l'huile, rapportées dans le sens transversal à l'extrémité de la paroi (10), pour former la chambre d'alimentation (6), la chambre de transit (7), et la chambre de réserve (8), tandis que les parois de séparation (11, 12) perméables à l'huile, s'étendent entre les faces internes des parois externes (2) du réservoir d'huile, le fond (3) et le fond intermédiaire (9), et sont également prévues pour une filtration de l'huile qui les traverse.
  2. Réservoir d'huile selon la revendication 1, caractérisé en ce qu'au moins à une partie des chambres fonctionnelles (5, 6, 7, 8) sont associés des instruments (22, 29) appropriés pour indiquer le niveau de l'huile de remplissage, ces instruments étant directement rapportés sur le réservoir d'huile (1) et/ou, pour permettre une surveillance à distance, étant raccordés par l'intermédiaire de liaisons à des indicateurs de niveau appropriés (23) logés sur ou dans le réservoir d'huile (1).
  3. Réservoir d'huile selon la revendication 1, caractérisé en ce que sur l'une de ses parois externes (2) dans la zone de la chambre d'alimentation (6), il est prévu des dispositions, telles qu'un bloc de raccordement (13) pour le raccordement de canalisations de retour (14, 15) d'huile de fuite et d'huile dérivée, en ce qu'en outre, dans la zone de la chambre de réserve (8) il est prévu des dispositions, telles qu'une tubulure (18) avec une bride de raccordement pour réaliser la liaison avec une pompe (P) amenant l'huile au système, en ce que, à la chambre de réserve (8) est en outre raccordée, une tubulure de remplissage d'huile (19) allant jusqu'à la face externe (4) du réservoir d'huile (1) et en ce qu'en outre, à au moins une grande partie des chambres fonctionnelles (5, 6, 7, 8) est respectivement associée une vis de vidange d'huile (21) disposée à un emplacement approprié de la face externe (2) du réservoir d'huile (1).
  4. Réservoir d'huile selon la revendication 2, caractérisé en ce qu'un tube ascendant (24) recevant l'indicateur de niveau (23) avec le détecteur de niveau d'huile (25) est raccordé au moins à la chambre de réserve (8).
  5. Reservoir d'huile selon une des précédentes revendications, caractérisé en ce que les deux parois de séparation (11, 12) perméables à l'huile sont agencées dans le réservoir d'huile (1) de façon à pouvoir être changées, et sont réalisées sous la forme d'organes d'insertion susceptibles d'être introduits ou bien d'être à nouveau enlevés à partir de la paroi externe (2) du réservoir d'huile (1) à travers des ouvertures appropriées, et susceptibles d'être recueillis dans les guidages appropriés, à l'intérieur du réservoir d'huile (1).
  6. Réservoir d'huile selon une des précédentes revendications, caractérisé en ce que l'huile retournée est susceptible d'être refroidie à une température nécessaire par un apport externe de fluide de refroidissement sur le réservoir d'huile (1) et/ou par une circulation interne (27) de fluide de refroidissement avec un dispositif de régulation approprié.
  7. Réservoir d'huile selon une des précédentes revendications, caractérisé en ce que, pour un nettoyage éventuel, il est équipé d'un couvercle amovible (4) et/ou d'un fond amovible (3) et/ou d'une paroi externe amovible (2).
  8. Réservoir d'huile selon une des précédentes revendications, caractérisé en ce que la chambre collectrice (5) est reliée à la chambre de transit (7) par une canalisation (17) susceptible d'être fermée, par exemple au moyen d'un robinet (16).
  9. Réservoir d'huile selon une des précédentes revendications, caractérisé en ce que pour surveiller la température de l'huile retournée et de l'huile régénérée, des détecteurs de température (28) sont rapportés à des emplacements appropriés dans le réservoir d'huile (1), ces détecteurs étant reliés à des instruments externes d'affichage, et, éventuellement à des dispositifs de réglage pour commander l'apport (27) du fluide de refroidissement au réservoir d'huile (1).
EP87116360A 1986-12-18 1987-11-06 Réservoir d'huile pour l'alimentation d'un circuit hydraulique de travail avec la fonction d'accumulation et pour la reprise d'huile retournée Expired - Lifetime EP0271702B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87116360T ATE81388T1 (de) 1986-12-18 1987-11-06 Oelbehaelter zur oelversorgung von hydraulischen arbeitskreisen mit speicherfunktion und zur wiederaufnahme rueckgeleiteten oeles.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3643265 1986-12-18
DE19863643265 DE3643265A1 (de) 1986-12-18 1986-12-18 Oelbehaelter zur oelversorgung von hydraulischen arbeitskreisen mit speicherfunktion und zur wiederaufnahme rueckgeleiteten oeles

Publications (3)

Publication Number Publication Date
EP0271702A2 EP0271702A2 (fr) 1988-06-22
EP0271702A3 EP0271702A3 (en) 1990-04-25
EP0271702B1 true EP0271702B1 (fr) 1992-10-07

Family

ID=6316484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116360A Expired - Lifetime EP0271702B1 (fr) 1986-12-18 1987-11-06 Réservoir d'huile pour l'alimentation d'un circuit hydraulique de travail avec la fonction d'accumulation et pour la reprise d'huile retournée

Country Status (5)

Country Link
US (1) US4809745A (fr)
EP (1) EP0271702B1 (fr)
AT (1) ATE81388T1 (fr)
DE (2) DE3643265A1 (fr)
DK (1) DK161778C (fr)

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RU2613343C2 (ru) * 2014-12-16 2017-03-16 Общество с ограниченной ответственностью "МашНефтеГаз" Гидростанция циркуляционной смазки
CN105736487B (zh) * 2016-05-09 2017-03-29 山东科技大学 一种高效集成沉降、冷却和过滤吸附功能的一体化油箱及其应用
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Also Published As

Publication number Publication date
DK596287D0 (da) 1987-11-13
EP0271702A3 (en) 1990-04-25
DK596287A (da) 1988-06-19
DE3782148D1 (de) 1992-11-12
EP0271702A2 (fr) 1988-06-22
DE3643265A1 (de) 1988-07-07
DE3643265C2 (fr) 1990-01-04
US4809745A (en) 1989-03-07
DK161778C (da) 1992-01-20
ATE81388T1 (de) 1992-10-15
DK161778B (da) 1991-08-12

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